HAC T-Coil Test Report

FCC ID: IHDT56XR4

Test Report

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FCCID_4262103

         HAC T-COIL TEST REPORT                                                         Report No. : HA913110B




         HEARING AID COMPATIBILITY
            T-COIL TEST REPORT
                        FCC ID               : IHDT56XR4
                        Equipment            : Mobile Cellular Phone
                        Brand Name           : T-Mobile
                        T-Rating             : T3
                        Applicant            : Motorola Mobility LLC
                                               222 W,Merchandise Mart Plaza,
                                               Chicago IL 60654 USA
                        Manufacturer         : Motorola Mobility LLC
                                               222 W,Merchandise Mart Plaza,
                                               Chicago IL 60654 USA
                        Standard             : FCC 47 CFR §20.19
                                               ANSI C63.19-2011


      The product was received on Mar. 03, 2019        and testing was started from Mar. 04, 2019 and
      completed on Mar. 28, 2019. We, SPORTON INTERNATIONAL INC., would like to declare
      that the tested sample has been evaluated in accordance with the test procedures and has
      been in compliance with the applicable technical standards.

      The report must not be used by the client to claim product certification, approval, or
      endorsement by TAF or any agency of government.

      The test results in this variant report apply exclusively to the tested model / sample.
      Without     written   approval of     SPORTON      INTERNATIONAL INC.        EMC       &   Wireless
      Communications Laboratory, the test report shall not be reproduced except in full.




            Approved by: Cona Huang / Deputy Manager



SPORTON INTERNATIONAL INC. EMC & Wireless Communications Laboratory
                       No. 52, Huaya 1st Rd., Guishan Dist., Taoyuan City, Taiwan (R.O.C.)




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FAX : 886-3-328-4978                                                               Issued Date : Apr. 22, 2019
Form version: 180516


             HAC T-COIL TEST REPORT                                                                                                             Report No. : HA913110B

                                                                Table of Contents
1.    Attestation of Test Results ........................................................................................................................................ 4
2.    General Information ................................................................................................................................................... 5
3.    Testing Location......................................................................................................................................................... 6
4.    Applied Standards ..................................................................................................................................................... 6
5.    Air Interface and Operating Mode............................................................................................................................. 7
6.    Measurement standards for T-Coil ........................................................................................................................... 8
      6.1     Frequency Response ....................................................................................................................................... 8
      6.2     T-Coil Signal Quality Categories ....................................................................................................................... 8
7.    T-Coil Test Procedure ................................................................................................................................................ 9
      7.1     Test Flow Chart................................................................................................................................................10
      7.2     Test Setup Diagram ......................................................................................................................................... 11
      7.3     Description of EUT Test Position .....................................................................................................................13
8.    Test Equipment List ..................................................................................................................................................14
9.    T-Coil testing for CMRS Voice ..................................................................................................................................15
      9.1     GSM Tests Results ..........................................................................................................................................15
      9.2     UMTS Tests Results ........................................................................................................................................16
      9.3     CDMA Tests Results ........................................................................................................................................16
10.   T-Coil testing for CMRS IP Voice .............................................................................................................................17
      10.1 VoLTE Tests Results ........................................................................................................................................17
      10.2 VoWiFi Tests Results .......................................................................................................................................19
11.   T-Coil testing for OTT VoIP Application ..................................................................................................................21
12.   Uncertainty Assessment ..........................................................................................................................................24
13.   References .................................................................................................................................................................25

Appendix A. Plots of T-Coil Measurement
Appendix B. DASY Calibration Certificate




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FAX : 886-3-328-4978                                                                                                                    Issued Date : Apr. 22, 2019
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         HAC T-COIL TEST REPORT                                       Report No. : HA913110B


                        History of this test report
       Report No.      Version                     Description                Issued Date

       HA913110B       Rev. 01    Initial issue of report                     Apr. 22, 2019




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          HAC T-COIL TEST REPORT                                                               Report No. : HA913110B

1. Attestation of Test Results
                                                                             Frequency                  Magnetic
     Air Interface           Band MHz                T-Rating
                                                                             Response                    Intensity
                              GSM850                   T3                          Pass                    Pass
  GSM CMRS Voice
                             GSM1900                   T4                          Pass                    Pass
                             EDGE850                   T4                          Pass                    Pass
   OTT over EDGE
                            EDGE1900                   T4                          Pass                    Pass
                              Band 2                   T4                          Pass                    Pass
  UMTS CMRS Voice             Band 4                   T4                          Pass                    Pass
                              Band 5                   T4                          Pass                    Pass
                              Band 2                   T4                          Pass                    Pass
   OTT over UMTS              Band 4                   T4                          Pass                    Pass
                              Band 5                   T4                          Pass                    Pass
                               BC0                     T4                          Pass                    Pass
  CDMA CMRS Voice              BC1                     T4                          Pass                    Pass
                               BC10                    T4                          Pass                    Pass
                               BC0                     T4                          Pass                    Pass
   OTT over CDMA               BC1                     T4                          Pass                    Pass
                               BC10                    T4                          Pass                    Pass
                              Band 2                   T4                          Pass                    Pass
                              Band 4                   T4                          Pass                    Pass
                              Band 5                   T4                          Pass                    Pass
                              Band 7                   T4                          Pass                    Pass
                              Band 12                  T4                          Pass                    Pass
                              Band 13                  T4                          Pass                    Pass
        VoLTE                 Band 17                  T4                          Pass                    Pass
                              Band 25                  T4                          Pass                    Pass
                              Band 26                  T4                          Pass                    Pass
                              Band 66                  T4                          Pass                    Pass
                              Band 71                  T4                          Pass                    Pass
                              Band 38                  T4                          Pass                    Pass
                              Band 41                  T3                          Pass                    Pass
                              Band 26                  T4                          Pass                    Pass
    OTT over LTE
                              Band 41                  T3                          Pass                    Pass
                               2450                    T4                          Pass                    Pass
                               5200                    T4                          Pass                    Pass
       VoWiFI                  5300                    T4                          Pass                    Pass
                               5500                    T4                          Pass                    Pass
                               5800                    T4                          Pass                    Pass
                               2450                    T4                          Pass                    Pass
    OTT over WiFi
                               5500                    T4                          Pass                    Pass
     Date Tested                                            2019/3/4 ~ 2019/3/28
The device is compliance with HAC limits specified in guidelines FCC 47CFR §20.19 and ANSI Standard ANSI C63.19.

Reviewed by: Jason Wang
Report Producer: Wan Liu




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FAX : 886-3-328-4978                                                                      Issued Date : Apr. 22, 2019
Form version: 181113


         HAC T-COIL TEST REPORT                                                Report No. : HA913110B
2. General Information
                                        Product Feature & Specification
Applicant Name         Motorola Mobility LLC
Equipment Name         Mobile Cellular Phone
Brand Name             T-Mobile
FCC ID                 IHDT56XR4
HW Version             DVT 2
SW Version             PPY29.17
EUT Stage              Production Unit
Date Tested            2019/3/4 ~ 2019/3/28
                       GSM850: 824.2 MHz ~ 848.8 MHz
                       GSM1900: 1850.2 MHz ~ 1909.8 MHz
                       WCDMA Band II: 1852.4 MHz ~ 1907.6 MHz
                       WCDMA Band IV: 1712.4 MHz ~ 1752.6 MHz
                       WCDMA Band V: 826.4 MHz ~ 846.6 MHz
                       CDMA2000 BC0: 824.7 MHz ~ 848.31 MHz
                       CDMA 2000 BC1: 1851.25 MHz ~ 1908.75 MHz
                       CDMA 2000 BC10: 817.9 MHz ~ 823.1 MHz
                       LTE Band 2: 1850.7 MHz ~ 1909.3 MHz
                       LTE Band 4: 1710.7 MHz ~ 1754.3 MHz
                       LTE Band 5: 824.7 MHz ~ 848.3 MHz
                       LTE Band 7: 2502.5 MHz ~ 2567.5 MHz
                       LTE Band 12: 699.7 MHz ~ 715.3 MHz
Frequency Band         LTE Band 13: 779.5 MHz ~ 784.5 MHz
                       LTE Band 17: 706.5 MHz ~ 713.5 MHz
                       LTE Band 25: 1850.7 MHz ~ 1914.3 MHz
                       LTE Band 26: 814.7 MHz ~ 848.3 MHz
                       LTE Band 38: 2572.5 MHz ~ 2617.5 MHz
                       LTE Band 41: 2498.5 MHz ~ 2687.5 MHz
                       LTE Band 66: 1710.7 MHz ~ 1779.3 MHz
                       LTE Band 71: 665.5 MHz ~ 695.5 MHz
                       WLAN 2.4GHz Band: 2412 MHz ~ 2462 MHz
                       WLAN 5.2GHz Band: 5180 MHz ~ 5240 MHz
                       WLAN 5.3GHz Band: 5260 MHz ~ 5320 MHz
                       WLAN 5.5GHz Band: 5500 MHz ~ 5700 MHz
                       WLAN 5.8GHz Band: 5745 MHz ~ 5825 MHz
                       Bluetooth: 2402 MHz ~ 2480 MHz
                       GSM/GPRS/EGPRS
                       AMR/RMC 12.2Kbps
                       HSDPA
                       HSUPA
Mode
                       CDMA2000 : 1xRTT/1xEv-Do(Rev.0)/1xEv-Do(Rev.A)
                       LTE: QPSK, 16QAM, 64QAM
                       802.11a/b/g/n HT20/HT40
                       Bluetooth BR/EDR/LE




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            HAC T-COIL TEST REPORT                                                            Report No. : HA913110B


3. Testing Location
Sporton Lab is accredited to ISO 17025 by Taiwan Accreditation Foundation (TAF code: 1190) and the FCC designation
No. TW1190 under the FCC 2.948(e) by Mutual Recognition Agreement (MRA) in FCC test.

                                                Testing Laboratory
Test Site                          SPORTON INTERNATIONAL INC.
                                   No. 52, Huaya 1st Rd., Guishan Dist., Taoyuan City, Taiwan (R.O.C.)
Test Site Location                 TEL: +886-3-327-3456
                                   FAX: +886-3-328-4978
                                   Sporton Site No.:
Test Site No.
                                   SAR04-HY




4. Applied Standards
‧    FCC CFR47 Part 20.19
‧    ANSI C63.19 2011-version
‧    FCC KDB 285076 D01 HAC Guidance v05
‧    FCC KDB 285076 D02 T Coil testing v03
‧    FCC KDB 285076 D03 HAC FAQ v01




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FAX : 886-3-328-4978                                                                    Issued Date : Apr. 22, 2019
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            HAC T-COIL TEST REPORT                                                                Report No. : HA913110B
5. Air Interface and Operating Mode
   Air                                         C63.19              Simultaneous              Name of Voice          Power
Interface      Band MHz            Type
                                               Tested               Transmitter                Service             Reduction
                GSM850                                               WLAN, BT                                         No
                                    VO           Yes                                          CMRS Voice
                GSM1900                                              WLAN, BT                                         No
  GSM
                EDGE850
                                    VD           Yes                 WLAN, BT                 Google Duo(1)           No
               EDGE1900
                   850                                               WLAN, BT                                         No
                  1750              VO           Yes                 WLAN, BT                 CMRS Voice              No
 UMTS
                  1900                                               WLAN, BT                                         No
                  HSPA              VD           Yes                 WLAN, BT                 Google Duo(1)           No
                   BC0                                               WLAN, BT                                         No
                   BC1              VO           Yes                 WLAN, BT                 CMRS Voice              No
 CDMA
                  BC10                                               WLAN, BT                                         No
                                                                                                             (1)
                  EVDO              VD           Yes                 WLAN, BT                 Google Duo              No
                 Band 2                                              WLAN, BT                                         No
                 Band 4                                              WLAN, BT                                         No
                 Band 5                                              WLAN, BT                                         No
                 Band 7                                              WLAN, BT                                         No
                 Band 12                                             WLAN, BT                   VoLTE                 No
   LTE
                 Band 13            VD           Yes                 WLAN, BT                      /                  No
  (FDD)
                 Band 17                                             WLAN, BT                 Google Duo(1)           No
                 Band 25                                             WLAN, BT                                         No
                 Band 26                                             WLAN, BT                                         No
                 Band 66                                             WLAN, BT                                         No
                 Band 71                                             WLAN, BT                                         No
                 Band 38                                             WLAN, BT                   VoLTE                 No
   LTE
                                    VD           Yes                                               /
  (TDD)          Band 41                                             WLAN, BT                                         No
                                                                                              Google Duo(1)
                  2450                                                                                                No
                  5200                                                                          VoWiFi (1)            No
  Wi-Fi           5300              VD           Yes             GSM,WCDMA,LTE                     /                  No
                  5500                                                                        Google Duo(1)           No
                  5800                                                                                                No
   BT              2450               DT           No              GSM,WCDMA,LTE                       NA             No
Type Transport:
VO= Voice only
DT= Digital Transport only (no voice)
VD= CMRS and IP Voice Service over Digital Transport
Remark:
1. For protocols not listed in Table 7.1 of ANSI C63.19-2011 or the ANSI C63.19-2011 VoLTE interpretation, the average
    speech level of −20 dBm0 should be used.
2. The device have similar frequency in some LTE bands: LTE B12/17, 5/26, 4/66, 2/25, 38/41, since the supported frequency
    spans for the smaller LTE bands are completely cover by the larger LTE bands, therefore, only larger LTE bands were
    required to be tested for hearing-aid compliance.




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FAX : 886-3-328-4978                                                                        Issued Date : Apr. 22, 2019
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         HAC T-COIL TEST REPORT                                                             Report No. : HA913110B
6. Measurement standards for T-Coil
6.1 Frequency Response
The frequency response of the perpendicular component of the magnetic field, measured in 1/3 octave bands, shall
follow the response curve specified in this sub-clause, over the frequency range 300 Hz to 3000 Hz.
Figure 1.1 and Figure 1.2 provide the boundaries as a function of frequency. These response curves are for true
field-strength measurements of the T-Coil signal. Thus, the 6 dB/octave probe response has been corrected from
the raw readings.




            Fig. 1.1 Magnetic field frequency response for WDs with field strength≤-15dB at 1 KHz




     Fig. 1.2 Magnetic field frequency response for WDs with a field that exceeds –15 dB(A/m) at 1 kHz



6.2 T-Coil Signal Quality Categories
This section provides the signal quality requirement for the intended T-Coil signal from a WD. Only the RF immunity
of the hearing aid is measured in T-Coil mode. It is assumed that a hearing aid can have no immunity to an
interference signal in the audio band, which is the intended reception band for this mode. A device is assessed
beginning by determining the category of the RF environment in the area of the T-Coil source.
The RF measurements made for the T-Coil evaluation are used to assign the category T1 through T4. The limitation
is given in Table 1. This establishes the RF environment presented by the WD to a hearing aid.
                                                                   Telephone parameters WD signal quality
                         Category
                                                                     ((signal + noise) to noise ratio in dB)
                        Category T1                                                 0 to 10 dB
                        Category T2                                                10 to 20 dB
                        Category T3                                                20 to 30 dB
                        Category T4                                                   > 30 dB
                                  Table 1 T-Coil Signal Quality Categories




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         HAC T-COIL TEST REPORT                                                                 Report No. : HA913110B
7. T-Coil Test Procedure
Referenced to ANSI C63.19-2011, Section 7.4,
This section describes the procedures used to measure the ABM (T-Coil) performance of the WD. In addition to
measuring the absolute signal levels, the A-weighted magnitude of the unintended signal shall also be determined.
To assure that the required signal quality is measured, the measurement of the intended signal and the
measurement of the unintended signal must be made at the same location for each measurement position. In
addition, the RF field strength at each measurement location must be at or below that required for the assigned
category.
Measurements shall not include undesired properties from the WD's RF field; therefore, use of a coaxial connection
to a base station simulator or non-radiating load, there might still be RF leakage from the WD, which can interfere
with the desired measurement. Pre-measurement checks should be made to avoid this possibility. All
measurements shall be performed with the WD operating on battery power with an appropriate normal speech
audio signal input level given in ANSI C63.19-2011 Table 7.1. If the device display can be turned off during a phone
call, then that may be done during the measurement as well,
Measurement shall be performed at two locations specified in ANSI C63.19-2011 A.3, with the correct probe
orientation for a particular location, in a multistage sequence by first measuring the field intensity of the desired
T-Coil signal the same location as the desired ABM or T-Coil signal (ABM1), and the ratio of desired to undesired
magnetic components (ABM2) must be measured at the same location as the desired ABM or T-Coil signal (ABM1),
and the ratio of desired to undesired ABM signals must be calculated. For the perpendicular field location, only the
ABM1 frequency response shall be determined in a third measurement stage.
The following steps summarize the basic test flow for determining ABM1 and ABM2. These steps assume that a
sine wave or narrowband 1/3 octave signal can be used for the measurement of ABM1.
a. A validation of the test setup and instrumentation may be performed using a TMFS or Helmholtz coil Measure
     the emissions and confirm that they are within the specified tolerance.
b. Position the WD in the test setup and connect the WD RF connector to a base station simulator or a
     non-radiating load. Confirm that equipment that requires calibration has been calibrated, and that the noise
     level meets the requirements given in ANSI C63.19-2011 clause 7.3.1.
c. The drive level to the WD ise set such that the reference input level specified in ANSI C63.19-2011 Table 7.1 is
     input to the base station simulator (or manufacturer's test mode equivalent) in 1 kHz, 1/3 octave band. This
     drive level shall be used for the T-Coil signal test (ABM1) at f = 1 kHz. Either a sine wave at 1025 Hz or a
     voice-like signal, band-limited to the 1 kHz 1/3 octave, as defined in ANSI C63.19-2011 clause 7.4.2, shall be
     used for the reference audio signal. If interference is found at 1025 Hz an alternative nearby reference audio
     signal frequency may be used. The same drive level shall be used for the ABM1 frequency response
     measurements at each 1/3 octave band center frequency. The WD volume control may be set at any level up to
     maximum, provided that a signal at any frequency at maximum modulation would not result in clipping or signal
     overload.
d. Determine the magnetic measurement locations for the WD device (A.3), if not already specified by the
     manufacturer, as described in ANSI C63.19-2011 clause 7.4.4.1.1 and 7.4.4.2.
e. At each measurement location, measure and record the desired T-Coil magnetic signals (ABM1 at fi) as
     described in ANSI C63.19-2011 clause 7.4.4.2 in each individual ISO 266-1975 R10 standard 1/3 octave band.
     The desired audio band input frequency (fi) shall be centered in each 1/3 octave band maintaining the same
     drive level as determined in item c) and the reading taken for that band.
f. Equivalent methods of determining the frequency response may also be employed, such as fast Fourier
     transform (FFT) analysis using noise excitation or input-output comparison using simulated speech. The
     full-band integrated probe output, as specified in D.9, may be used, as long as the appropriate calibration curve
     is applied to the measured result, so as to yield an accurate measurement of the field magnitude. (The resulting
     measurement shall be an accurate measurement in dB A/m.)
g. All Measurements of the desired signal shall be shown to be of the desired signal and not of an undesired
     signal. This may be shown by turning the desired signal ON and OFF with the probe measuring the same
     location. If the scanning method is used the scans shall show that all measurement points selected for the
     ABM1 measurement meet the ambient and test system noise criteria in ANSI C63.19-2011 clause 7.3.1.
h. At the measurement location for each orientation, measure and record the undesired broadband audio
     magnetic signal (ABM2) as specified in ANSI C63.19-2011 clause 7.4.4.4 with no audio signal applied (or digital
     zero applied, if appropriate) using A-weighting and the half-band integrator. Calculate the ratio of the desired to
     undesired signal strength (i,e., signal quality).
i. Obtain the data from the postprocessor, SEMCAD, and determine the category that properly classifies the
     signal quality based on ANSI C63.19-2011 Table 8.5.




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       HAC T-COIL TEST REPORT                                     Report No. : HA913110B
7.1 Test Flow Chart




                       Fig. 2 T-Coil Signal Test flowchart




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       HAC T-COIL TEST REPORT                                                         Report No. : HA913110B
7.2 Test Setup Diagram




General Note:
1. Define the all applicable input audio level as below according to C63 and KDB 285076 D02v03:
   - GSM input level: -16dBm0
   - UMTS input level: -16dBm0
   - CDMA input level: -18dBm0
   - VoLTE input level: -16dBm0
   - VoWiFi input level: -20dBm0
   - OTT VoIP input Level: -20dBm0
2. For GSM / UMTS / CDMA test setup and input level, the correct input level definition is via a
   communication tester CMU200’s “Decoder Cal” and “Codec Cal” with audio option B52 and B85 to set the
   correct audio input levels.
3. CMU200 is able to output 1kHz audio signal equivalent to 3.14dBm0 at "Decoder Cal." confuguration, the
   signal reference is used to adjust the AMMI gain setting to reach -16dBm0 for GSM/UMTS and -18dBm0
   for CDMA. CMW500 input is calibrated and the relation between the analog input voltage and the internal
   level in dBm0 can be determined
4. The test setup used for VoLTE over IMS and VoWiFi over IMS is via the callbox of CMW500 for T-coil
   measurement, The data application unit of the CMW500 was used to simulate the IP multimedia
   subsystem server. The CMW500 can be manually configured to ensure and control the speech input level
   result is -16dBm0 for VoLTE, -20dBm0 for VoWiFi when the device during the IMS connection.
5. The test setup used for Google DUO VoIP call is via the data application unit on CMW500 connection to
   the Internet, also connection to the other auxiliary VoIP unit which is used to configure the audio codec
   and bit rate and also monitor the audio input level of -20dBm0.




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FAX : 886-3-328-4978                                                             Issued Date : Apr. 22, 2019
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            HAC T-COIL TEST REPORT                                                                     Report No. : HA913110B
1.     The Required gain factor for the specific signal shall typically be multiplied by this factor to achieve approx. the same
       level as for the 1kHz sine signal
2.     The below calculation formula is an example and showing how to determine the input level for the device.




Calculation formula:
- Audio Level at -16dBm0 = ((-16dBm0) – (3.14dBm0)) + X dBv
- Calculated Gain at -16dBm0 = 10(( audio level at -16dBm0 – Y dBm0) / 20) * 10
- Gatting setting at -16dBm0 = required gain factor * calculated gain
     Gain Value           20* log(gain)          AMCC Coil In             Level
        (linear)                dB                 (dBv RMS)              dBm0
                                                       -2.47               3.14
           10                   20                    -19.85             -14.24
          8.17                18.24                   -21.61                -16

                                      Duration         Peak to RMS            RMS           Required Gain        Calculated
           Signal Type
                                        (s)               (dB)                (dB)             Factor           Gain Setting
            1kHz sine                    -                  3                   0                 1                 8.17
         48k_voice_1kHz                  1                16.2                -12.7             4.33               35.36
     48k_voice_300Hz ~ 3kHz              2                21.6                -18.6             8.48               69.25




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FAX : 886-3-328-4978                                                                             Issued Date : Apr. 22, 2019
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       HAC T-COIL TEST REPORT                                                                Report No. : HA913110B
7.3 Description of EUT Test Position
    Fig.3 illustrate the references and reference plane that shall be used in a typical EUT emissions
    measurement. The principle of this section is applied to EUT with similar geometry. Please refer to
    Appendix C for the setup photographs.

           The area is 5 cm by 5 cm.
           The area is centered on the audio frequency output transducer of the EUT.
           The area is in a reference plane, which is defined as the planar area that contains the highest point
            in the area of the phone that normally rests against the user’s ear. It is parallel to the centerline of
            the receiver area of the phone and is defined by the points of the receiver-end of the EUT handset,
            which, in normal handset use, rest against the ear.
           The measurement plane is parallel to, and 10 mm in front of, the reference plane.




                       Fig.3 A typical EUT reference and plane for T-Coil measurements




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           HAC T-COIL TEST REPORT                                                          Report No. : HA913110B
8. Test Equipment List
                                                                                                Calibration
 Manufacturer               Name of Equipment            Type/Model   Serial Number
                                                                                        Last Cal.        Due Date
   SPEAG               Audio Magnetic 1D Field Probe      AM1DV3          3130        Nov. 20, 2018    Nov. 19, 2019
   SPEAG                Data Acquisition Electronics       DAE4           854         Jun. 14, 2018    Jun. 13, 2019
   SPEAG               Audio Magnetic Calibration Coil     AMCC           1049            NCR                 NCR
   SPEAG                Audio Measuring Instrument         AMMI           1041            NCR                 NCR
   SPEAG                    Test Arch Phantom               N/A           N/A             NCR                 NCR
   SPEAG                      Phone Positioner              N/A           N/A             NCR                 NCR
   Gencom                      Thermometer                  TE1         TM225-1       Mar. 16, 2018    Mar. 15, 2019
     R&S                        Base Station              CMW500         115793       May. 24, 2018    May. 23, 2019
     R&S                        Base Station              CMU200         116457       May. 30, 2018    May. 29, 2019
Note:
1. NCR: “No-Calibration Required”




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FAX : 886-3-328-4978                                                                  Issued Date : Apr. 22, 2019
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             HAC T-COIL TEST REPORT                                                                               Report No. : HA913110B
9. T-Coil testing for CMRS Voice
General Note:
1. Codec Investigation: For a voice service/air interface, investigate the variations of codec configurations (WB, NB bit
   rate) and document the parameters (ABM1, ABM2, S+N/N, frequency response) for that voice service. It is only
   necessary to document this for one channel/band, the following worst investigation codec would be remarked to be
   used for the testing for the handset.
2. Air Interface Investigation:
   a. Use the worst-case codec test and document a limited set of bands/channel/bandwidths. Observe the effect of
        changing the band and bandwidth to ensure that there are no unexpected variations. Using the knowledge of the
        observed variations, it is necessary to report only a set band/channel/bandwidth for each orientation for a voice
        service/air interface.
   b. According to the ANSI C63.19 2011 section 7.3.2, test middle channel of each frequency band for HAC testing
        for each orientation to determine worst HAC T-Coil rating.



9.1 GSM Tests Results
<Codec Investigation>
             Codec                      FR_V1                       HR_V1                     Orientation              Band / Channel

        ABM 1 (dBA/m)                    28.09                       30.74

        ABM 2 (dBA/m)                    26.71                       28.95
                                                                                                 Axial                     GSM850 / 189
       Signal Quality (dB)               1.38                         1.79

        Freq. Response                   Pass                        Pass
Remark: According to codec investigation, the worst codec is FR_V1


<Air Interface Investigation>
                                                                                                                    Freq.
                                                                   ABM1 ABM2 Signal           Ambient
Plot                                                 Probe                               T                        Response       Frequency
         Air Interface       Mode    Channel                        dB    dB   Quality         Noise
No.                                                 Position                           Rating                     Variation      Response
                                                                   (A/m) (A/m)  dB            dB (A/m)
                                                                                                                     dB
                                                    Axial (Z)      1.38      -26.71   28.09    T3        -50.35
 1         GSM850            Voice     189                                                                             2            Pass
                                                 Transversal (Y)   -11.94 -43.86      31.92    T4        -50.22
                                                    Axial (Z)      1.60      -30.33   31.93    T4        -50.38
 2         GSM1900           Voice     661                                                                             2            Pass
                                                 Transversal (Y)   -9.38     -43.18   33.80    T4        -50.23




TEL : 886-3-327-3456                                                                                               Page : 15 of 25
FAX : 886-3-328-4978                                                                                        Issued Date : Apr. 22, 2019
Form version: 181113


      HAC T-COIL TEST REPORT                                                                                          Report No. : HA913110B
9.2 UMTS Tests Results
<Codec Investigation>
         Codec               AMR 4.75Kbps           AMR 7.95Kbps               AMR 12.2Kbps            Orientation              Band / Channel

     ABM 1 (dBA/m)                  -0.72                -0.59                         0.45

     ABM 2 (dBA/m)                 -40.66                -40.31                    -37.99
                                                                                                          Axial                 UMTS B2 / 9400
  Signal Quality (dB)               39.94                39.72                     38.44

     Freq. Response                 Pass                 Pass                      Pass
Remark: According to codec investigation, the worst codec is AMR 12.2Kbps



<Air Interface Investigation>
                                                                                                                         Freq.
                                                                    ABM1 ABM2 Signal           Ambient
Plot                                               Probe                                  T                            Response        Frequency
        Air Interface      Mode      Channel                         dB    dB   Quality         Noise
No.                                               Position                              Rating                         Variation       Response
                                                                    (A/m) (A/m)  dB            dB (A/m)
                                                                                                                          dB
                                                  Axial (Z)           0.45    -37.99      38.44   T4      -50.37
 3       WCDMA II          Voice       9400                                                                                2              Pass
                                               Transversal (Y)       -6.03    -43.78      37.75   T4      -50.25
                                                  Axial (Z)          -0.42    -40.39      39.97   T4      -50.36
 4      WCDMA IV           Voice       1413                                                                                2              Pass
                                               Transversal (Y)       -8.02    -44.75      36.73   T4      -50.21
                                                  Axial (Z)           0.21    -38.80      39.01   T4      -50.34
 5       WCDMA V           Voice       4182                                                                                2              Pass
                                               Transversal (Y)       -6.64    -44.07      37.43   T4      -50.24




9.3 CDMA Tests Results
<Codec Investigation>
         Codec                 RC1 SO68               RC3 SO68                   RC4 SO68              Orientation              Band / Channel

     ABM 1 (dBA/m)                  1.22                 -1.98                         1.71

     ABM 2 (dBA/m)                 -39.85                -46.53                    -40.62
                                                                                                          Axial                     BC0 / 384
  Signal Quality (dB)               41.07                44.55                     42.33

     Freq. Response                 Pass                 Pass                      Pass
Remark: According to codec investigation, the worst codec is RC1 SO68


<Air Interface Investigation>
                                                                                                      Ambient  Freq.
                                                                           ABM1 ABM2 Signal
Plot                                                               Probe                         T     Noise Response Frequency
     Air Interface                 Mode          Channel                     dB     dB Quality
No.                                                               Position                     Rating    dB   Variation Response
                                                                           (A/m) (A/m)    dB
                                                                                                       (A/m)     dB
                        RC1+SO3 Voice codec8K                 Axial (Z)     1.22 -39.85 41.07   T4     -50.35
28     CDMA BC0                                    384                                                            2       Pass
                            Enhanced low                   Transversal (Y) -13.92 -44.05 30.13  T4     -50.21
                        RC1+SO3 Voice codec8K                     Axial (Z)     1.50 -39.54 41.04      T4         -50.33
29     CDMA BC1                                    600                                                                         1.94        Pass
                            Enhanced low                   Transversal (Y) -15.96 -44.22 28.26         T3         -50.22
                        RC1+SO3 Voice codec8K                     Axial (Z)     1.07 -40.74 41.81      T4         -50.36
30 CDMA BC10                                       580                                                                          2          Pass
                            Enhanced low                   Transversal (Y) -13.95 -45.53 31.58         T4         -50.24




TEL : 886-3-327-3456                                                                                                Page : 16 of 25
FAX : 886-3-328-4978                                                                                         Issued Date : Apr. 22, 2019
Form version: 181113


                   HAC T-COIL TEST REPORT                                                                   Report No. : HA913110B
      10. T-Coil testing for CMRS IP Voice
      10.1 VoLTE Tests Results
      General Note:
      1. Codec Investigation: For a voice service/air interface, investigate the variations of codec configurations (WB, NB bit
         rate) and document the parameters (ABM1, ABM2, S+N/N, frequency response) for that voice service. It is only
         necessary to document this for one channel / band, the following worst investigation codec would be remarked to be
         used for the testing for the handset.
      2. Air Interface Investigation:
         a. Use the worst-case codec test and document a limited set of bands / channel / bandwidths. Observe the effect of
              changing the band and bandwidth to ensure that there are no unexpected variations. Using the knowledge of the
              observed variations, it is necessary to report only a set band/channel/bandwidth for each orientation for a voice
              service/air interface and the following worst configure would be remarked to be used for the testing for the
              handset.
         b. Select LTE FDD / TDD one frequency band to do measurement at the worst SNR position was additionally
              performed with varying the BWs/Modulations/RB size to verify the variation to find out worst configuration , the
              observed variation is very little to be within 1 dB which is much less than the margin from the rating threshold.
         c. The TDD LTE power class 3 supports uplink-downlink configuration 0 and 6 and power class 2 supports
              uplink-downlink configuration1 to 5 for this device, an investigation was performed to determine the worst-case
              uplink-downlink configuration to be used for the testing for the handset.
         d. For TDD LTE B41 UL CA is operated in power class3, an investigation is selected worst case UL-DL
              configuration with worst case radio configuration result is used.
         e. According to the ANSI C63.19 2011 section 7.3.2, test middle channel of each frequency band for HAC testing
              for each orientation to determine worst HAC T-Coil rating.


      <Codec Investigation>

      LTE FDD
               NB AMR     WB AMR     NB AMR      WB AMR EVS SWB     EVS SWB   EVS WB    EVS WB    EVS NB     EVS NB              Band / BW
  Codec                                                                                                              Orientation
               4.75Kbps   6.60Kbps   12.2Kbps   23.85Kbps 9.6Kbps   128Kbps   5.9Kbps   128Kbps   5.9Kbps   24.4Kbps             / Channel
  ABM 1
                 0.05      -2.45       0.3        -4.39    -4.93     -1.91     -1.37     -1.98      -4.3      -4.92
 (dBA/m)
  ABM 2
                -39.34     -39.64     -38.54     -40.88    -41.66    -38.63    -38.26    -38.58    -41.16    -41.62
 (dBA/m)
                                                                                                                                 B25 / 20M /
  Signal                                                                                                                 Axial
                                                                                                                                   26340
  Quality       39.39      37.19      38.84       36.49    36.73     36.72     36.89      36.6     36.86      36.7
   (dB)
   Freq.
                Pass        Pass       Pass       Pass     Pass      Pass      Pass       Pass     Pass       Pass
Response
      Remark: According to codec investigation, the worst codec is WB AMR 23.85Kbps

      LTE TDD
               NB AMR     WB AMR     NB AMR      WB AMR EVS SWB     EVS SWB   EVS WB    EVS WB    EVS NB     EVS NB              Band / BW /
  Codec                                                                                                              Orientation
               4.75Kbps   6.60Kbps   12.2Kbps   23.85Kbps 9.6Kbps   128Kbps   5.9Kbps   128Kbps   5.9Kbps   24.4Kbps              Channel
  ABM 1
                 1.82       -0.01      2.36       0.63      -0.2      0.19     0.24      0.15      0.23       0.24
 (dBA/m)
  ABM 2
                 -36.5     -36.09     -35.47     -35.07   -36.49     -36.04   -36.26     -35.69   -36.54     -35.69
 (dBA/m)                                                                                                                         B41 / 20M /
                                                                                                                         Axial
  Signal                                                                                                                           40620
                38.32      36.08      37.83       35.7     36.29     36.23     36.5      35.84     36.77     35.93
Quality (dB)
   Freq.
                 Pass       Pass       Pass       Pass     Pass      Pass      Pass      Pass      Pass       Pass
Response
      Remark: According to codec investigation, the worst codec is WB AMR 23.85Kbps




      TEL : 886-3-327-3456                                                                                    Page : 17 of 25
      FAX : 886-3-328-4978                                                                             Issued Date : Apr. 22, 2019
      Form version: 181113


              HAC T-COIL TEST REPORT                                                                       Report No. : HA913110B
  <Air Interface Investigation>
                                                                                                                                Signal
                             BW                    RB            RB                      UL-DL          ABM1        ABM2
     Air Interface                   Modulation                            Channel                                              Quality
                            (MHz)                  Size         offset                Configuration    dB (A/m)    dB (A/m)
                                                                                                                                  dB
            LTE B25          20        QPSK         1             0         26340           -            0.13       -36.44       36.57
            LTE B25          20        QPSK         50            0         26340           -            0.07       -36.97          37.04
            LTE B25          20        QPSK        100            0         26340           -            0.10       -37.04          37.14
            LTE B25          20       16QAM         1             0         26340           -            0.11       -36.83          36.94
            LTE B25          20       64QAM         1             0         26340           -            0.08       -36.83          36.91
FDD
            LTE B25          15        QPSK         1             0         26340           -            0.10       -36.79          36.89
            LTE B25          10        QPSK         1             0         26340           -            0.10       -36.80          36.90
            LTE B25          5         QPSK         1             0         26340           -            0.11       -37.19          37.30
            LTE B25          3         QPSK         1             0         26340           -            0.08       -36.64          36.72
            LTE B25          1.4       QPSK         1             0         26340           -            0.07       -37.03          37.10
         LTE B41_PC3         20        QPSK         1             0         40620           0            0.77       -35.62          36.39
         LTE B41_PC3         20        QPSK         50            0         40620           0            0.83       -36.11          36.94
         LTE B41_PC3         20        QPSK        100            0         40620           0            0.80       -35.85          36.65
         LTE B41_PC3         20       16QAM         1             0         40620           0            0.82       -36.07          36.89
         LTE B41_PC3         20       64QAM         1             0         40620           0            0.84       -36.05          36.89
         LTE B41_PC3         15        QPSK         1             0         40620           0            0.84       -35.87          36.71
         LTE B41_PC3         10        QPSK         1             0         40620           0            0.81       -35.72          36.53
TDD      LTE B41_PC3         5         QPSK         1             0         40620           0            0.83       -35.74          36.57
         LTE B41_PC3         20        QPSK         1             0         40620           6            0.82       -36.12          36.94
         LTE B41_PC2         20        QPSK         1             0         40620           1            0.85       -35.84          36.69
         LTE B41_PC2         20        QPSK         1             0         40620           2            0.83       -35.88          36.71
         LTE B41_PC2         20        QPSK         1             0         40620           3            0.84       -35.92          36.76
         LTE B41_PC2         20        QPSK         1             0         40620           4            0.84       -35.91          36.75
         LTE B41_PC2         20        QPSK         1             0         40620           5            0.83       -35.95          36.78
           UL CA B41         20        QPSK         1             0         40620           0            0.82       -35.98          36.80



                                                                                                  Ambient  Freq.
                                                                        ABM1 ABM2 Signal
Plot                BW              RB RB                      Probe                         T     Noise Response Frequency
     Air Interface       Modulation             Channel                   dB    dB Quality
No.                (MHz)            Size offset               Position                     Rating    dB   Variation Response
                                                                        (A/m) (A/m)   dB
                                                                                                   (A/m)     dB
                                                           Axial (Z)     0.00 -36.38 36.38  T4     -50.33
 6    LTE Band 7       20     QPSK      1     0   21100                                                     1.24      Pass
                                                        Transversal (Y) -9.26 -43.76 34.50  T4     -50.21
                                                              Axial (Z)    0.08 -35.26 35.34     T4      -50.34
 7    LTE Band 12      10     QPSK      1     0   23095                                                              1.3       Pass
                                                           Transversal (Y) -9.44 -43.56 34.12    T4      -50.22
                                                              Axial (Z)   -0.27 -36.43 36.16     T4      -50.33
 8    LTE Band 13      10     QPSK      1     0   23230                                                             1.25       Pass
                                                           Transversal (Y) -9.05 -43.08 34.03    T4      -50.20
                                                              Axial (Z)   -0.47 -37.21 36.74     T4      -50.34
 9    LTE Band 25      20     QPSK      1     0   26340                                                             1.25       Pass
                                                           Transversal (Y) -9.25 -43.49 34.24    T4      -50.24
                                                              Axial (Z)    0.56 -36.27 36.83     T4      -50.35
10 LTE Band 26         15     QPSK      1     0   26865                                                             1.14       Pass
                                                           Transversal (Y) -9.25 -43.16 33.91    T4      -50.25
                                                              Axial (Z)   -0.49 -36.72 36.23     T4      -50.34
11 LTE Band 66         20     QPSK      1     0   132322                                                            1.15       Pass
                                                           Transversal (Y) -10.00 -44.31 34.31   T4      -50.22
                                                              Axial (Z)   -0.97 -37.49 36.52     T4      -50.33
12 LTE Band 71         20     QPSK      1     0   133322                                                            1.21       Pass
                                                           Transversal (Y) -8.85 -43.33 34.48    T4      -50.21
                                                              Axial (Z)    0.63 -35.07 35.70     T4      -50.30
13 LTE Band 41         20     QPSK      1     0   40620                                                             1.11       Pass
                                                           Transversal (Y) -10.40 -34.12 23.72   T3      -50.24




  TEL : 886-3-327-3456                                                                                       Page : 18 of 25
  FAX : 886-3-328-4978                                                                                Issued Date : Apr. 22, 2019
  Form version: 181113


           HAC T-COIL TEST REPORT                                                                                         Report No. : HA913110B
    10.2 VoWiFi Tests Results
    General Note:
    1. Codec Investigation: For a voice service/air interface, investigate the variations of codec configurations
       (WB, NB bit rate) and document the parameters (ABM1, ABM2, S+N/N, frequency response) for that voice service. It
       is only necessary to document this for one channel/band, the following worst investigation codec would be remarked
       to be used for the testing for the handset.
    2. Air Interface Investigation:
       a. Use the worst-case codec test and document a limited set of bands/channel/bandwidths. Observe the effect of
            changing the band and bandwidth to ensure that there are no unexpected variations. Using the knowledge of the
            observed variations, it is necessary to report only a set band/channel/bandwidth for each orientation for a voice
            service/air interface and the following worst configure would be remarked to be used for the testing for the
            handset.
       b. Select WLAN 2.4GHz and WLAN 5GHz one frequency band to do measurement at the worst SNR position was
            additionally performed with varying the BWs/Modulations/data rate to verify the variation to find out worst
            configuration , the observed variation is very little to be within 1 dB which is much less than the margin from the
            rating threshold.
       c. According to the ANSI C63.19 2011 section 7.3.2, test middle channel of each frequency band for HAC testing
            for each orientation to determine worst HAC T-Coil rating.


    <Codec Investigation>
            NB AMR     WB AMR       NB AMR      WB AMR EVS SWB         EVS SWB       EVS WB    EVS WB        EVS NB        EVS NB                       Band /
 Codec                                                                                                                             Orientation
            4.75Kbps   6.60Kbps     12.2Kbps   23.85Kbps 9.6Kbps       128Kbps       5.9Kbps   128Kbps       5.9Kbps      24.4Kbps                     Channel
  ABM 1
              0.1       -1.95         -3.26      -3.21       -1.6           -1.64     -1.46      -1.3             -1.9      -3.53
 (dBA/m)
  ABM 2
             -35.8      -36.2        -38.05     -36.37      -35.45          -35.46    -35.1     -34.55           -35.99    -41.49
 (dBA/m)
                                                                                                                                                       2.4GHz
  Signal                                                                                                                               Axial
                                                                                                                                                       WLAN / 6
  Quality     35.9      34.25        34.79       33.16      33.85           33.82     33.64     33.25            34.09      37.96
   (dB)
   Freq.
             Pass        Pass         Pass       Pass       Pass            Pass      Pass      Pass             Pass       Pass
Response
    Remark: According to codec investigation, the worst codec is WB AMR 23.85Kbps



    <Air Interface Investigation>
                                                                                                     ABM1                  ABM2        Signal Quality
      Frequency Bands           Modulation      Bandwidth       Data Rate            Channel
                                                                                                    dB (A/m)              dB (A/m)          dB
                                 802.11b            20                1M                6            -1.54                 -35.81          34.27
                                 802.11b            20               11M                6                -1.57              -36.04             34.47
                                 802.11g            20                6M                6                -1.42              -35.88             34.46
         WLAN 2.4GHz
                                 802.11g            20               54M                6                -1.50              -35.86             34.36
                            802.11n-HT20            20               MCS0               6                -1.54              -35.92             34.38
                            802.11n-HT20            20               MCS7               6                -1.49              -35.87             34.38
                                 802.11a            20                6M               40                -2.45              -36.25             33.80
                                 802.11a            20               54M               40                -2.31              -36.67             34.36
                           802.11an-HT20            20               MCS0              40                -2.35              -36.21             33.86
         WLAN 5GHz
                           802.11an-HT20            20               MCS7              40                -2.48              -36.52             34.04
                           802.11an-HT40            40               MCS0              38                -2.36              -36.20             33.84
                           802.11an-HT40            40               MCS7              38                -2.26              -36.40             34.14




    TEL : 886-3-327-3456                                                                                                    Page : 19 of 25
    FAX : 886-3-328-4978                                                                                             Issued Date : Apr. 22, 2019
    Form version: 181113


         HAC T-COIL TEST REPORT                                                                    Report No. : HA913110B

                                                                                                       Freq.
                                                                 ABM1 ABM2 Signal           Ambient
Plot                                                 Probe                             T             Response Frequency
     Air Interface         Mode        Channel                     dB     dB Quality         Noise
No.                                                 Position                         Rating          Variation Response
                                                                 (A/m) (A/m)    dB          dB (A/m)
                                                                                                        dB
                                                    Axial (Z)     -1.95 -35.20 33.25  T4     -50.36
14 WLAN2.4GHz          802.11b 1Mbps      6                                                             0.6      Pass
                                                 Transversal (Y) -15.29 -46.09 30.80  T4     -50.21
                                                    Axial (Z)    -2.84 -37.13    34.29   T4   -50.34
15    WLAN5GHz         802.11a 6Mbps     40                                                              1.49        Pass
                                                 Transversal (Y) -11.15 -44.04   32.89   T4   -50.25
                                                    Axial (Z)    -2.60 -37.20    34.60   T4   -50.33
16    WLAN5GHz         802.11a 6Mbps     60                                                              0.72        Pass
                                                 Transversal (Y) -10.61 -43.42   32.81   T4   -50.21
                                                    Axial (Z)    -3.52 -37.79    34.27   T4   -50.30
17    WLAN5GHz         802.11a 6Mbps     124                                                             0.19        Pass
                                                 Transversal (Y) -10.63 -43.33   32.70   T4   -50.18
                                                    Axial (Z)    -2.25 -36.85    34.60   T4   -50.36
18    WLAN5GHz         802.11a 6Mbps     157                                                             0.27        Pass
                                                 Transversal (Y) -11.18 -43.93   32.75   T4   -50.21




TEL : 886-3-327-3456                                                                                 Page : 20 of 25
FAX : 886-3-328-4978                                                                          Issued Date : Apr. 22, 2019
Form version: 181113


              HAC T-COIL TEST REPORT                                                                     Report No. : HA913110B
11. T-Coil testing for OTT VoIP Application
General Notes:
1.     According to the ANSI C63.19 2011 section 7.3.2, test middle channel of each frequency band for HAC testing for
       each orientation to determine worst HAC T-Coil rating.
2.     The google Duo VoIP application are pre-installed on this device. According to KDB 285076 D02, all air interfaces via
       a data connection with VoIP application need to be considered HAC testing.
3.     The Google Duo only support OPUS audio codec and support 6Kbps to 75Kbps bitrate.
4.     The test setup used for OTT VoIP call is the DUT connect to the CMW500 and via the data application unit on
       CMW500 connection to the Internet, the Auxiliary EUT is connected to the WiFi access point, the
       channel/Modulation/Frequency bands/data rate is configured on the CMW500 for the DUT unit. For the
       Auxiliary VoIP unit which is used to configure the audio codec rate and determine the audio input level of -20dBm0
       based on the KDB 285076 D02v03 requirement.
5.     Codec Investigation: For a voice service/air interface, investigate the variations of codec configurations (WB, NB bit
       rate) and document the parameters (ABM1, ABM2, S+N/N, frequency response) for that voice service. It is only
       necessary to document this for one channel/band, the following tests results which the worst case codec would be
       remarked to be used for the testing for the handset.
6.     Air Interface Investigation:
       a. Use the worst-case codec test and document a limited set of bands/channel/bandwidths. Observe the effect of
            changing the band and bandwidth to ensure that there are no unexpected variations. Using the knowledge of the
            observed variations, it is necessary to report only a set band/channel/bandwidth for each orientation for a voice
            service/air interface.
       b. Due to OTT service and CMRS IP service are all be established over the internet protocol for the voice service,
            and on both services use the identical RF air interface for the WIFI and LTE, therefore according to VoLTE and
            VoWiFi test results of air interface investigation, the worst configuration and frequency band of air interface was
            used for OTT T-Coil testing.
            -LTE FDD worst configuration and band: LTE Band 26/15MHz/QPSK/1RB Size
            -LTE TDD worst configuration and band: LTE Band 41/20MHz/QPSK/1RB Size
            -WLAN2.4GHz worst configuration: 802.11b /1Mbps
            -WLAN5GHz worst configuration and Band: WLAN 5.8GHz /11a/6Mbps



<Codec Investigation>

EDGE
                              OPUS                   OPUS                  OPUS
           Codec              Bitrate               Bitrate               Bitrate          Orientation         Band / Channel
                              6Kbps                 40Kbps                75Kbps
      ABM 1 (dBA/m)             0.6                  -0.22                    0.35

      ABM 2 (dBA/m)           -34.09                 -34.78                   -33.99
                                                                                              Axial            GSM850 / 189
     Signal Quality (dB)       34.69                 34.56                    34.34

      Freq. Response           Pass                  Pass                     Pass
Remark: According to codec investigation, the worst codec bitrate is 75Kbps




HSPA
                              OPUS                   OPUS                  OPUS
           Codec              Bitrate               Bitrate               Bitrate          Orientation         Band / Channel
                              6Kbps                 40Kbps                75Kbps
      ABM 1 (dBA/m)            -1.12                 -1.26                    0.08

      ABM 2 (dBA/m)           -43.88                 -41.92                   -39.22
                                                                                              Axial           UMTS B2 / 9400
     Signal Quality (dB)       42.76                 40.66                    39.3

      Freq. Response           Pass                  Pass                     Pass
Remark: According to codec investigation, the worst codec bitrate is 75Kbps




TEL : 886-3-327-3456                                                                                    Page : 21 of 25
FAX : 886-3-328-4978                                                                             Issued Date : Apr. 22, 2019
Form version: 181113


           HAC T-COIL TEST REPORT                                                                    Report No. : HA913110B
EVDO
        Codec              Opus 6kbps            Opus 40kbps            Opus 75kbps    Orientation         Band / Channel

    ABM 1 (dBA/m)              2.73                   2.88                    0.28

    ABM 2 (dBA/m)              -41.1                 -39.45                   -39.5
                                                                                          Axial               BC0 / 384
  Signal Quality (dB)         43.83                  42.33                    39.78

   Freq. Response              Pass                  Pass                     Pass
Remark: According to codec investigation, the worst codec bitrate is 75Kbps




LTE FDD
                              OPUS                   OPUS                  OPUS
        Codec                 Bitrate               Bitrate               Bitrate      Orientation       Band / BW / Channel
                              6Kbps                 40Kbps                75Kbps
    ABM 1 (dBA/m)              -2.05                 -0.14                    1.76

    ABM 2 (dBA/m)             -43.87                 -41.22                   -39.14
                                                                                          Axial           B26 / 15M / 26865
  Signal Quality (dB)         41.82                  41.08                    40.9

   Freq. Response              Pass                  Pass                     Pass
Remark: According to codec investigation, the worst codec bitrate is 75Kbps


LTE TDD
                              OPUS                   OPUS                  OPUS
        Codec                 Bitrate               Bitrate               Bitrate      Orientation       Band / BW / Channel
                              6Kbps                 40Kbps                75Kbps
    ABM 1 (dBA/m)              0.83                   0.79                    -0.18

    ABM 2 (dBA/m)             -38.18                 -36.4                    -37.13
                                                                                          Axial           B41 / 20M / 40620
  Signal Quality (dB)         39.01                  37.19                    36.95

   Freq. Response              Pass                  Pass                     Pass
Remark: According to codec investigation, the worst codec bitrate is 75Kbps


WLAN
                              OPUS                   OPUS                  OPUS
        Codec                 Bitrate               Bitrate               Bitrate      Orientation         Band / Channel
                              6Kbps                 40Kbps                75Kbps
    ABM 1 (dBA/m)              3.96                   3.73                    1.45

    ABM 2 (dBA/m)             -35.91                 -35.59                   -34.6
                                                                                          Axial             WLAN2.4G / 6
  Signal Quality (dB)         39.87                  39.32                    36.05

   Freq. Response              Pass                  Pass                     Pass
Remark: According to codec investigation, the worst codec bitrate is 75Kbps




TEL : 886-3-327-3456                                                                                Page : 22 of 25
FAX : 886-3-328-4978                                                                         Issued Date : Apr. 22, 2019
Form version: 181113


         HAC T-COIL TEST REPORT                                                                        Report No. : HA913110B

                                                                                                      Freq.
                                                                 ABM1 ABM2 Signal          Ambient
Plot                                                 Probe                            T             Response Frequency
     Air Interface         Mode        Channel                     dB    dB Quality         Noise
No.                                                 Position                        Rating          Variation Response
                                                                 (A/m) (A/m)   dB          dB (A/m)
                                                                                                       dB
                                                    Axial (Z)     0.35 -33.99 34.34  T4     -50.34
19     GSM850           EDGE 2TX         189                                                          1.05      Pass
                                                 Transversal (Y) -8.02 -43.47 35.45  T4     -50.21
                                                    Axial (Z)    -0.31 -36.74    36.43   T4   -50.36
20     GSM1900          EDGE 2TX         661                                                              1.12       Pass
                                                 Transversal (Y) -8.22 -44.82    36.60   T4   -50.24
                                                    Axial (Z)    0.08 -39.22     39.30   T4   -50.38
21     WCDMA II           HSPA          9400                                                               1.2       Pass
                                                 Transversal (Y) -7.86 -45.64    37.78   T4   -50.26
                                                    Axial (Z)    1.26 -40.41     41.67   T4   -50.37
22    WCDMA IV            HSPA          1413                                                              1.43       Pass
                                                 Transversal (Y) -7.58 -45.22    37.64   T4   -50.28
                                                    Axial (Z)    -1.25 -42.75    41.50   T4   -50.36
23    WCDMA V             HSPA          4182                                                              1.07       Pass
                                                 Transversal (Y) -6.79 -44.90    38.11   T4   -50.25
                                                    Axial (Z)    0.28 -39.50     39.78   T4   -50.36
31    CDMA BC0       RTAP 153.6Kbps      384                                                              1.32       Pass
                                                 Transversal (Y) -8.72 -46.17    37.45   T4   -50.24
                                                    Axial (Z)    -1.65 -42.30    40.65   T4   -50.35
32    CDMA BC1       RTAP 153.6Kbps      600                                                              1.26       Pass
                                                 Transversal (Y) -8.53 -45.09    36.56   T4   -50.25
                                                    Axial (Z)    -0.22 -40.72    40.50   T4   -50.38
33    CDMA BC10      RTAP 153.6Kbps      580                                                              1.43       Pass
                                                 Transversal (Y) -7.39 -44.30    36.91   T4   -50.27
                                                    Axial (Z)    1.76 -39.14     40.90   T4   -50.33
24    LTE Band 26    15M_QPSK_1_0       26865                                                             0.91       Pass
                                                 Transversal (Y) -7.44 -44.49    37.05   T4   -50.24
                                                    Axial (Z)    -0.18 -37.13    36.95   T4   -50.35
25    LTE Band 41    20M_QPSK_1_0       40620                                                             0.99       Pass
                                                 Transversal (Y) -17.81 -45.93   28.12   T3   -50.21
                                                    Axial (Z)    1.45 -34.60     36.05   T4   -50.33
26   WLAN2.4GHz        802.11b 1Mbps      6                                                               0.93       Pass
                                                 Transversal (Y) -7.04 -45.10    38.06   T4   -50.22
                                                    Axial (Z)    2.06 -34.87     36.93   T4   -50.39
27    WLAN5GHz         802.11a 6Mbps     124                                                              0.83       Pass
                                                 Transversal (Y) -8.99 -45.48    36.49   T4   -50.28

     Remark:
      1. Phone Condition: Mute on; Backlight off; Max Volume
      2. The detail frequency response results please refer to appendix A.
      3. Test Engineer:Tom Jiang




TEL : 886-3-327-3456                                                                                 Page : 23 of 25
FAX : 886-3-328-4978                                                                          Issued Date : Apr. 22, 2019
Form version: 181113


          HAC T-COIL TEST REPORT                                                                 Report No. : HA913110B
12. Uncertainty Assessment
The evaluation of uncertainly by the statistical analysis of a series of observations is termed a Type A
evaluation of uncertainty. The evaluation of uncertainty by means other than the statistical analysis of a series
of observation is termed a Type B evaluation of uncertainty. Each component of uncertainty, however
evaluated, is represented by an estimated standard deviation, termed standard uncertainty, which is
determined by the positive square root of the estimated variance. The combined standard uncertainty of the
measurement result represents the estimated standard deviation of the result. It is obtained by combining the
individual standard uncertainties of both Type A and Type B evaluation using the usual “root-sum-squares”
(RSS) methods of combining standard deviations by taking the positive square root of the estimated
variances. Expanded uncertainty is a measure of uncertainty that defines an interval about the measurement
result within which the measured value is confidently believed to lie. It is obtained by multiplying the combined
standard uncertainty by a coverage factor. For purpose of this document, a coverage factor two is used, which
corresponds to confidence interval of about 95 %. The DASY uncertainty Budget is showed in Table 8.2.
The judgment of conformity in the report is based on the measurement results excluding the measurement
uncertainty.

                                Uncertainty                                                      Standard       Standard
                                  Value         Probability                   Ci       Ci
      Error Description                                           Divisor                       Uncertainty    Uncertainty
                                                Distribution                (ABM1)   (ABM2)
                                  (±%)                                                           (ABM1)         (ABM2)
                                                     Probe Sensitivity
       Reference Level             3.0            Normal              1       1        1         ± 3.0 %         ± 3.0 %
      AMCC Geometry                0.4          Rectangular           √3      1        1         ± 0.2 %         ± 0.2 %
       AMCC Current                1.0          Rectangular           √3      1        1         ± 0.6 %         ± 0.6 %
   Probe Positioning During
                                   0.1          Rectangular           √3      1        1         ± 0.1 %         ± 0.1 %
          Calibrate
      Noise Contribution           0.7          Rectangular           √3    0.0143     1         ± 0.0 %         ± 0.4 %
      Frequency Slope              5.9          Rectangular           √3     0.1       1         ± 0.3 %         ± 3.5 %
                                                      Probe System
     Repeatability / Drift         1.0          Rectangular           √3      1        1         ± 0.6 %         ± 0.6 %
  Linearity / Dynamic Range        0.6          Rectangular           √3      1        1         ± 0.4 %         ± 0.4 %
       Acoustic Noise              1.0          Rectangular           √3     0.1       1         ± 0.1 %         ± 0.6 %
         Probe Angle               2.3          Rectangular           √3      1        1         ± 1.4 %         ± 1.4 %
     Spectral Processing           0.9          Rectangular           √3      1        1         ± 0.5 %         ± 0.5 %
       Integration Time            0.6            Normal              1       1        5         ± 0.6 %         ± 3.0 %
      Field Disturbation           0.2          Rectangular           √3      1        1         ± 0.1 %         ± 0.1 %
                                                        Test Signal
  Reference Signal Spectral
                                   0.6          Rectangular           √3      0        1         ± 0.0 %         ± 0.4 %
         Response
                                                        Positioning
      Probe Positioning            1.9          Rectangular           √3      1        1         ± 1.1 %         ± 1.1 %
     Phantom Thickness             0.9          Rectangular           √3      1        1         ± 0.5 %         ± 0.5 %
       EUT Positioning             1.9          Rectangular           √3      1        1         ± 1.1 %         ± 1.1 %
                                                  External Contributions
       RF Interference             0.0          Rectangular           √3      1       0.3        ± 0.0 %         ± 0.0 %
    Test Signal Variation          2.0          Rectangular           √3      1        1         ± 1.2 %         ± 1.2 %
                               Combined Standard Uncertainty                                     ± 4.1 %         ± 6.1 %
                                  Coverage Factor for 95 %                                                 K=2
                                    Expanded Uncertainty                                         ± 8.1 %         ± 12.3 %

                       Table 8.2 Uncertainty Budget of audio band magnetic measurement




TEL : 886-3-327-3456                                                                               Page : 24 of 25
FAX : 886-3-328-4978                                                                        Issued Date : Apr. 22, 2019
Form version: 181113


         HAC T-COIL TEST REPORT                                                     Report No. : HA913110B

13. References
 [1]   ANSI C63.19-2011, “American National Standard for Methods of Measurement of Compatibility
       between Wireless Communications Devices and Hearing Aids”, 27 May 2011.
 [2]   FCC KDB 285076 D01v05, “Equipment Authorization Guidance for Hearing Aid Compatibility”, Sep
       2017
 [3]   FCC KDB 285076 D02v03, “Guidance for performing T-Coil tests for air interfaces supporting voice
       over IP (e.g., LTE and WiFi) to support CMRS based telephone services”, Sep 2017
 [4]   FCC KDB 285076 D03v01, “Hearing aid compatibility frequently asked questions”, Sep 2017
 [5]   SPEAG DASY System Handbook




TEL : 886-3-327-3456                                                                  Page : 25 of 25
FAX : 886-3-328-4978                                                           Issued Date : Apr. 22, 2019
Form version: 181113



Document Created: 2019-05-15 21:52:57
Document Modified: 2019-05-15 21:52:57

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