Test Report HAC T-Coil

FCC ID: UZ7TC57HO

Test Report

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FCCID_4047230

         HAC T-COIL TEST REPORT                                                          Report No. : HA882724B




         HEARING AID COMPATIBILITY
            T-COIL TEST REPORT
                       FCC ID                : UZ7TC57HO
                       Equipment             : Touch Computer
                       Brand Name            : Zebra
                       Model Name            : TC57HO
                       T-Rating              : T3
                       Applicant             : Zebra Technologies Corporation
                                               1 Zebra Plaza Holtsville, NY 11742
                       Manufacturer          : Zebra Technologies Corporation
                                               1 Zebra Plaza Holtsville, NY 11742
                       Standard              : FCC 47 CFR §20.19
                                               ANSI C63.19-2011


      The product was received on Sep. 04, 2018 and testing was started from Sep. 14, 2018 and
      completed on Sep. 15, 2018. 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     INTERTIONAL       INC.   EMC       &   Wireless
      Communications Laboratory, the test report shall not be reproduced except in full.




            Approved by: Cona Huang / Deputy Manager



  SPORTON INTERTIONAL 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 : Oct. 15, 2018
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             HAC T-COIL TEST REPORT                                                                                                             Report No. : HA882724B

                                                                Table of Contents
1.    Attestation of Test Results ........................................................................................................................................ 4
2.    General Information ................................................................................................................................................... 5
3.    Testing Location......................................................................................................................................................... 7
4.    Applied Standards ..................................................................................................................................................... 7
5.    Air Interface and Operating Mode............................................................................................................................. 8
6.    Measurement standards for T-Coil ........................................................................................................................... 9
      6.1     Frequency Response ....................................................................................................................................... 9
      6.2     T-Coil Signal Quality Categories ....................................................................................................................... 9
7.    T-Coil Test Procedure ...............................................................................................................................................10
      7.1     Test Flow Chart................................................................................................................................................ 11
      7.2     Test Setup Diagram .........................................................................................................................................12
      7.3     Description of EUT Test Position .....................................................................................................................14
8.    Test Equipment List ..................................................................................................................................................15
9.    T-Coil testing for CMRS Voice ..................................................................................................................................16
      9.1     GSM Tests Results ..........................................................................................................................................16
      9.2     UMTS Tests Results ........................................................................................................................................17
10.   T-Coil testing for CMRS IP Voice .............................................................................................................................18
      10.1 VoLTE Tests Results ........................................................................................................................................18
11.   T-Coil testing for OTT VoIP Application ..................................................................................................................20
12.   Uncertainty Assessment ..........................................................................................................................................24
13.   References .................................................................................................................................................................25

Appendix A. Plots of T-Coil Measurement
Appendix B. DASY Calibration Certificate
Appendix C. Test Setup Photos




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FAX : 886-3-328-4978                                                                                                                    Issued Date : Oct. 15, 2018
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         HAC T-COIL TEST REPORT                                       Report No. : HA882724B


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

       HA882724B       Rev. 01    Initial issue of report                     Oct. 15, 2018




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          HAC T-COIL TEST REPORT                                                               Report No. : HA882724B

1. Attestation of Test Results
                                                                              Frequency                 Magnetic
     Air Interface           Band MHz                T-Rating
                                                                               Response                  Intensity
                              GSM850                   T3                        Pass                      Pass
  GSM CMRS Voice
                             GSM1900                   T3                        Pass                      Pass
                             EDGE850                   T3                        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
                              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 14                  T4                        Pass                      Pass
                              Band 17                  T4                        Pass                      Pass
                              Band 25                  T4                        Pass                      Pass
                              Band 26                  T4                        Pass                      Pass
                              Band 66                  T4                        Pass                      Pass
                              Band 38                  T4                        Pass                      Pass
                              Band 41                  T4                        Pass                      Pass
                              Band 13                  T4                        Pass                      Pass
    OTT over LTE
                              Band 38                  T4                        Pass                      Pass
                               2450                    T4                        Pass                      Pass
                               5200                    T4                        Pass                      Pass
    OTT over WiFi              5300                    T4                        Pass                      Pass
                               5500                    T4                        Pass                      Pass
                               5800                    T4                        Pass                      Pass
     Date Tested                                            2018/09/14 ~ 2018/09/15
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: Daisy Peng




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FAX : 886-3-328-4978                                                                      Issued Date : Oct. 15, 2018
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         HAC T-COIL TEST REPORT                                             Report No. : HA882724B
2. General Information
                                     Product Feature & Specification
Applicant Name         Zebra Technologies Corporation
Equipment Name         Touch Computer
Brand Name             Zebra
Model Name             TC57HO
FCC ID                 UZ7TC57HO
HW Version             DV
SW Version             91-10-03.00-OG-U00-STD
FW Version             FUSION_QA_2_1.0.0.030_O
MFD                    30-Jul-18
EUT Stage              Engineering sample
                       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
                       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
                       LTE Band 13: 779.5 MHz ~ 784.5 MHz
                       LTE Band 14: 790.5 MHz ~ 795.5 MHz
Frequency Band         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 66: 1710.7 MHz ~ 1779.3 MHz
                       LTE Band 38: 2572.5 MHz ~ 2617.5 MHz
                       LTE Band 41: 2498.5 MHz ~ 2687.5 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 ~ 5720 MHz
                       WLAN 5.8GHz Band: 5745 MHz ~ 5825 MHz
                       Bluetooth: 2402 MHz ~ 2480 MHz
                       NFC: 13.56 MHz
                       GSM/GPRS/EGPRS/DTM
                       AMR / RMC 12.2Kbps
                       HSDPA
                       HSUPA
Mode                   DC-HSDPA
                       LTE: QPSK, 16QAM, 64QAM
                       802.11a/b/g/n/ac HT20/HT40/VHT20/VHT40/VHT80
                       Bluetooth BR/EDR/LE
                       NFC:ASK




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            HAC T-COIL TEST REPORT                                                                    Report No. : HA882724B

                                                   Specification of Accessories
         Adapter             Brand Name             Zebra            Part Number                PWR-WUA5V12W0US
         Battery 1           Brand Name             Zebra            Part Number                    BT-000314-50
         Battery 2           Brand Name             Zebra            Part Number                    BT-000314-01
        USB cable            Brand Name             Zebra            Part Number                 CBL-TC51-USB1-01
     Headset Jumper 1        Brand Name             Zebra            Part Number                CBL-TC51-HDST25-01
     Headset Jumper 2        Brand Name             Zebra            Part Number                CBL-TC51-HDST35-01
     2.5mm Earphone          Brand Name             Zebra            Part Number                HDST-25MM-PTVP-01
     3.5mm Earphone          Brand Name             Zebra            Part Number                HDST-35MM-PTVP-01
       Exoskeleton           Brand Name             Zebra            Part Number                  SG-TC51-EX01-01
     Trigger Handle 1        Brand Name             Zebra            Part Number                 TRG-TC51-SNP1-01
       Soft Holster          Brand Name             Zebra            Part Number                SG-TC51-HLSTR1-01
        Hand strap           Brand Name             Zebra            Part Number                SG-TC51-BHDSTP1-03
      USB-C Adaptor          Brand Name             Zebra            Part Number                ADPTR-TC56-USBC-01
     USB Type C cable        Brand Name             Zebra            Part Number                         N/A

Remark:
1.     There are two battery options, for T-coil evaluation is selected battery1 as the main test, battery2 choose worst air
       interface to be tested.




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FAX : 886-3-328-4978                                                                            Issued Date : Oct. 15, 2018
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            HAC T-COIL TEST REPORT                                                            Report No. : HA882724B


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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            HAC T-COIL TEST REPORT                                                                  Report No. : HA882724B
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                                                                          Google Duo(1)
                                     VD           Yes                  WLAN, BT                       /                No
                EDGE1900                                                                           WFC(1,2)
                   850                                                 WLAN, BT                                        No
                   1750              VO           Yes                  WLAN, BT                  CMRS Voice            No
  UMTS             1900                                                WLAN, BT                                        No
                                                                                                 Google Duo(1)
                  HSPA               VD           Yes                  WLAN, BT                       /                No
                                                                                                   WFC(1,2)
                  Band 2                                               WLAN, BT                                        No
                  Band 4                                               WLAN, BT                                        No
                  Band 5                                               WLAN, BT                                        No
                  Band 7                                               WLAN, BT                                        No
                                                                                                   VoLTE
                 Band 12                                               WLAN, BT                       /                No
   LTE
                 Band 13             VD           Yes                  WLAN, BT                  Google Duo(1)         No
  (FDD)
                 Band 14                                               WLAN, BT                       /                No
                                                                                                   WFC(1,2)
                 Band 17                                               WLAN, BT                                        No
                 Band 25                                               WLAN, BT                                        No
                 Band 26                                               WLAN, BT                                        No
                 Band 66                                               WLAN, BT                                        No
                                                                                                   VoLTE
                 Band 38                                               WLAN, BT                       /                No
   LTE
                                     VD           Yes                                            Google Duo(1)
  (TDD)
                 Band 41                                               WLAN, BT                       /                No
                                                                                                   WFC(1,2)
                   2450                                                                                                No
                   5200                                                                          Google Duo(1)         No
  Wi-Fi            5300              VD           Yes              GSM,WCDMA,LTE                      /                No
                   5500                                                                            WFC(1,2)            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 Workforce Connect (WFC) is an over-the-top (OTT) – voice services operating over IP, and this voice application was
    development and pre-installed on a wireless handset by the Zebra Technologies Corporation.
3. The device have similar frequency in some LTE bands: LTE B12/17, 5/26, 4/66, 2/25, 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 : Oct. 15, 2018
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         HAC T-COIL TEST REPORT                                                             Report No. : HA882724B
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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FAX : 886-3-328-4978                                                                   Issued Date : Oct. 15, 2018
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         HAC T-COIL TEST REPORT                                                                 Report No. : HA882724B
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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FAX : 886-3-328-4978                                                                      Issued Date : Oct. 15, 2018
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       HAC T-COIL TEST REPORT                                     Report No. : HA882724B
7.1 Test Flow Chart




                       Fig. 2 T-Coil Signal Test flowchart




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       HAC T-COIL TEST REPORT                                                         Report No. : HA882724B
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.
6. The test setup used for WFC VoIP application 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 can be determined the audio input level of -20dBm0.




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FAX : 886-3-328-4978                                                             Issued Date : Oct. 15, 2018
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            HAC T-COIL TEST REPORT                                                                     Report No. : HA882724B
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 : Oct. 15, 2018
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       HAC T-COIL TEST REPORT                                                                Report No. : HA882724B
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. : HA882724B
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. 21, 2017    Nov. 20, 2018
   SPEAG                Data Acquisition Electronics       DAE4           910         Jun. 21, 2018    Jun. 20, 2019
   SPEAG               Audio Magnetic Calibration Coil     AMCC           1049            NCR                 NCR
   SPEAG                Audio Measuring Instrument         AMMI           1041            NCR                 NCR
  RCPTWN                       Thermometer                 HTC-1        TM685-1       Mar. 16, 2018    Mar. 15, 2019
   SPEAG                    Test Arch Phantom               N/A           N/A             NCR                 NCR
   SPEAG                      Phone Positioner              N/A           N/A             NCR                 NCR
     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”




TEL : 886-3-327-3456                                                                         Page : 15 of 25
FAX : 886-3-328-4978                                                                  Issued Date : Oct. 15, 2018
Form version: 180516


             HAC T-COIL TEST REPORT                                                                      Report No. : HA882724B
   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)                     3.84                    4.33

        ABM 2 (dBA/m)                     -20.18                  -23.26
                                                                                          Axial                GSM850 / 189
      Signal Quality (dB)                 24.02                   27.59

        Freq. Response                    PASS                    PASS

   Remark: According to codec investigation, the worst codec is FR_V1


   <Air Interface Investigation>
                                                                                                       Ambient  Freq.
                                                                             ABM1 ABM2 Signal
Plot                                                           Probe                              T     Noise Response Frequency
     Air Interface          Mode          Channel Battery                      dB    dB Quality
No.                                                           Position                          Rating    dB   Variation Response
                                                                             (A/m) (A/m)   dB
                                                                                                        (A/m)     dB
                     Voice(speech codec                         Axial (Z)     3.84 -20.18 24.02  T3     -50.26
01     GSM850                               189    Battery 1                                                     0.32      PASS
                        handset low)                         Transversal (Y) -2.40 -34.26 31.86  T4     -50.22
                     Voice(speech codec                         Axial (Z)     2.99 -21.84 24.83  T3     -50.31
02     GSM850                               189    Battery 2                                                     1.34      PASS
                        handset low)                         Transversal (Y) -1.19 -33.27 32.08  T4     -50.25
                     Voice(speech codec                         Axial (Z)     3.70 -25.08 28.78  T3     -50.24
03    GSM1900                               661    Battery 1                                                     0.93      PASS
                        handset low)                         Transversal (Y) -2.09 -37.99 35.90  T4     -50.23




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   FAX : 886-3-328-4978                                                                             Issued Date : Oct. 15, 2018
   Form version: 180516


                HAC T-COIL TEST REPORT                                                                      Report No. : HA882724B


   9.2 UMTS Tests Results
   <Codec Investigation>

             Codec             AMR 4.75Kbps          AMR 7.95Kbps       AMR 12.2Kbps          Orientation        Band / Channel

        ABM 1 (dBA/m)               5.36                 5.61                  5.62

        ABM 2 (dBA/m)               -40.12              -40.19              -39.77
                                                                                                 Axial            Band 5 / 4182
       Signal Quality (dB)          45.48                45.8               45.39

        Freq. Response              PASS                PASS                PASS

   Remark: According to codec investigation, the worst codec is AMR 12.2Kbps


   <Air Interface Investigation>
                                                                                                          Ambient  Freq.
                                                                               ABM1 ABM2 Signal
Plot                                                              Probe                              T     Noise Response Frequency
         Air Interface          Mode         Channel Battery                      dB    dB Quality
No.                                                              Position                          Rating    dB   Variation Response
                                                                                (A/m) (A/m)   dB
                                                                                                           (A/m)     dB
                             Voice (speech                         Axial (Z)     5.62 -39.77 45.39  T4     -50.28
04         WCDMA II                           9400    Battery 1                                                     0.86      PASS
                              codec low)                        Transversal (Y) 1.50 -45.58 47.08   T4     -50.22
                             Voice (speech                         Axial (Z)     5.66 -41.34 47.00  T4     -50.31
05        WCDMA IV                            1413    Battery 1                                                     0.84      PASS
                              codec low)                        Transversal (Y) 1.86 -45.73 47.59   T4     -50.21
                             Voice (speech                         Axial (Z)     4.99 -41.53 46.52  T4     -50.33
06        WCDMA V                             4182    Battery 1                                                     0.73      PASS
                              codec low)                        Transversal (Y) 0.39 -45.84 46.23   T4     -50.23




   TEL : 886-3-327-3456                                                                                    Page : 17 of 25
   FAX : 886-3-328-4978                                                                             Issued Date : Oct. 15, 2018
   Form version: 180516


              HAC T-COIL TEST REPORT                                                                          Report No. : HA882724B


    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 1.5 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>

    LTE FDD
                                                      EVS     EVS     EVS
           NB AMR WB AMR NB AMR WB AMR                                      EVS WB EVS NB EVS NB                           Band / BW /
 Codec                                                SWB     SWB     WB                             Orientation
           4.75Kbps 6.60Kbps 12.2Kbps 23.85Kbps                             128Kbps 5.9Kbps 24.4Kbps                        Channel
                                                    9.6Kbps 128Kbps 5.9Kbps
  ABM 1
              5.1      2.3       5.07       3.93      5.07     5.02     4.26        4.34     5.18     5.21
 (dBA/m)
  ABM 2
            -40.37    -41.25    -40.13      -40      -39.78   -39.54    -39.59     -39.75   -39.94   -39.39
 (dBA/m)
                                                                                                                            B25 / 20M /
 Signal                                                                                                           Axial
                                                                                                                              26340
 Quality     45.47    43.55      45.2      43.93     44.85     44.56    43.85      44.09    45.12     44.6
  (dB)
  Freq.
             Pass     Pass       Pass      Pass       Pass     Pass     Pass        Pass     Pass     Pass
Response
    Remark: According to codec investigation, the worst codec is WB AMR 6.60Kbps

    LTE TDD
                                                     EVS     EVS     EVS
           NB AMR WB AMR NB AMR WB AMR                                     EVS WB EVS NB EVS NB                            Band / BW /
 Codec                                               SWB     SWB     WB                             Orientation
           4.75Kbps 6.60Kbps 12.2Kbps 23.85Kbps                            128Kbps 5.9Kbps 24.4Kbps                         Channel
                                                   9.6Kbps 128Kbps 5.9Kbps
 ABM 1
             3.29     1.81      3.14       2.13      2.91      2.98     3.02       3.04     2.94     3.02
(dBA/m)
 ABM 2
            -36.27   -35.91    -35.94     -35.86    -35.76    -35.84   -35.68      -35.57   -35.58   -35.65
(dBA/m)
                                                                                                                            B41 / 20M /
 Signal                                                                                                          Axial
                                                                                                                              40620
 Quality    39.56     37.72     39.08      37.99     38.67    38.82     38.7       38.61    38.52    38.67
  (dB)
  Freq.
           Pass       Pass       Pass        Pass       Pass      Pass   Pass    Pass       Pass     Pass
Response
    Remark: According to codec investigation, the worst codec is WB AMR 6.60Kbps




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    FAX : 886-3-328-4978                                                                              Issued Date : Oct. 15, 2018
    Form version: 180516


                HAC T-COIL TEST REPORT                                                                            Report No. : HA882724B
      <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             -           4.02        -39.04      43.06
                 LTE B25          20          QPSK       50          0       26340             -           4.07        -40.07      44.14
                 LTE B25          20          QPSK       100         0       26340             -           3.99        -39.77      43.76
                 LTE B25          20         16QAM        1          0       26340             -           4.03        -39.79      43.82
                 LTE B25          20         64QAM        1          0       26340             -           4.14        -39.75      43.89
      FDD
                 LTE B25          15          QPSK        1          0       26340             -           4.17        -39.28      43.45
                 LTE B25          10          QPSK        1          0       26340             -           3.96        -39.65      43.61
                 LTE B25           5          QPSK        1          0       26340             -           3.96        -39.67      43.63
                 LTE B25           3          QPSK        1          0       26340             -           4.17        -39.82      43.99
                 LTE B25          1.4         QPSK        1          0       26340             -           3.86        -39.76      43.62
                 LTE B41          20          QPSK        1          0       40620             0           1.69        -35.77      37.46
                 LTE B41          20          QPSK       50          0       40620             0           1.78        -35.72      37.50
                 LTE B41          20          QPSK       100         0       40620             0           1.97        -35.82      37.79
                 LTE B41          20         16QAM        1          0       40620             0           2.04        -35.67      37.71
                 LTE B41          20         64QAM        1          0       40620             0           1.83        -35.95      37.78
                 LTE B41          15          QPSK        1          0       40620             0           1.92        -35.90      37.82
                 LTE B41          10          QPSK        1          0       40620             0           1.91        -35.75      37.66
      TDD
                 LTE B41           5          QPSK        1          0       40620             0           2.00        -35.98      37.98
                 LTE B41          20          QPSK        1          0       40620             1           1.94        -35.61      37.55
                 LTE B41          20          QPSK        1          0       40620             2           1.89        -35.62      37.51
                 LTE B41          20          QPSK        1          0       40620             3           1.80        -35.77      37.57
                 LTE B41          20          QPSK        1          0       40620             4           2.03        -35.70      37.73
                 LTE B41          20          QPSK        1          0       40620             5           1.99        -35.77      37.76
                 LTE B41          20          QPSK        1          0       40620             6           2.01        -35.58      37.59



                                                                                                                 Ambient  Freq.
                                                                                       ABM1 ABM2 Signal
Plot                BW              RB RB                                 Probe                             T     Noise Response Frequency
     Air Interface       Modulation             Channel Battery                          dB    dB Quality
No.                (MHz)            Size offset                          Position                         Rating    dB   Variation Response
                                                                                       (A/m) (A/m)   dB
                                                                                                                  (A/m)     dB
                                                                        Axial (Z)       2.39 -40.84 43.23  T4     -50.36
07 LTE Band 7      20      QPSK         1     0   21100 Battery 1                                                            2       PASS
                                                                     Transversal (Y)   -0.80 -43.84 43.04  T4     -50.22
                                                                        Axial (Z)       2.60 -41.02 43.62  T4     -50.31
08 LTE Band 12     10      QPSK         1     0   23095 Battery 1                                                            2       PASS
                                                                     Transversal (Y)   -0.64 -44.14 43.50  T4     -50.23
                                                                        Axial (Z)       2.50 -40.57 43.07  T4     -50.36
09 LTE Band 13     10      QPSK         1     0   23230 Battery 1                                                            2       PASS
                                                                     Transversal (Y)   -0.84 -43.53 42.69  T4     -50.26
                                                                        Axial (Z)       2.08 -41.03 43.11  T4     -50.33
10 LTE Band 14     10      QPSK         1     0   23330 Battery 1                                                          1.64      PASS
                                                                     Transversal (Y)   -0.89 -44.10 43.21  T4     -50.24
                                                                        Axial (Z)       2.30 -41.25 43.55  T4     -50.32
11 LTE Band 25     20      QPSK         1     0   26340 Battery 1                                                            2       PASS
                                                                     Transversal (Y)   -1.11 -44.75 43.64  T4     -50.23
                                                                        Axial (Z)       2.36 -40.65 43.01  T4     -50.37
12 LTE Band 26     15      QPSK         1     0   26865 Battery 1                                                            2       PASS
                                                                     Transversal (Y)   -1.00 -44.01 43.01  T4     -50.27
                                                                        Axial (Z)       1.91 -41.68 43.59  T4     -50.35
13 LTE Band 66     20      QPSK         1     0   132322 Battery 1                                                           2       PASS
                                                                     Transversal (Y)   -0.93 -44.04 43.11  T4     -50.24
                                                                        Axial (Z)       2.59 -34.55 37.14  T4     -50.31
14 LTE Band 38     20      QPSK         1     0   38000 Battery 1                                                            2       PASS
                                                                     Transversal (Y)   -1.10 -38.68 37.58  T4     -50.22
                                                                        Axial (Z)       1.81 -35.91 37.72  T4     -50.38
15 LTE Band 41     20      QPSK         1     0   40620 Battery 1                                                            2       PASS
                                                                     Transversal (Y)   -1.29 -39.37 38.08  T4     -50.23




      TEL : 886-3-327-3456                                                                                       Page : 19 of 25
      FAX : 886-3-328-4978                                                                                Issued Date : Oct. 15, 2018
      Form version: 180516


               HAC T-COIL TEST REPORT                                                                   Report No. : HA882724B


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. 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. 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 LTE, therefore according to VoLTE 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 13/10MHz/QPSK/1RB Size
            -LTE TDD worst configuration and band: LTE Band 38/20MHz/QPSK/1RB Size

<Codec Investigation>

EDGE
                          Google Duo                                       WFC
                                                                                                                        Band /
                Opus        Opus        Opus      G.711       G.711                                      Orientation
     Codec                                                                G.729    G.722        GSM                    Channel
                6kbps      40kbps      75kbps     a-Law       u-Law
  ABM 1
                 0.62        0.52       0.98       3.77        3.95        3.82     3.72        3.78
 (dBA/m)
  ABM 2
                 -27.63     -27.23     -27.49     -24.48      -24.54      -24.27    -24.2      -24.38
 (dBA/m)
                                                                                                                       GSM850 /
     Signal                                                                                                 Axial
                                                                                                                         189
     Quality     28.25      27.75      28.47      28.25       28.49       28.09     27.92      28.16
      (dB)
  Freq.
                 Pass       Pass        Pass       Pass        Pass        Pass     Pass        Pass
Response
Remark: According to codec investigation, the worst codec bitrate is Opus 40Kbps




TEL : 886-3-327-3456                                                                                   Page : 20 of 25
FAX : 886-3-328-4978                                                                            Issued Date : Oct. 15, 2018
Form version: 180516


            HAC T-COIL TEST REPORT                                                                    Report No. : HA882724B
HSPA
                        Google Duo                                         WFC
                                                                                                                       Band /
              Opus         Opus        Opus       G.711       G.711                                    Orientation
  Codec                                                                    G.729    G.722    GSM                      Channel
              6kbps       40kbps      75kbps      a-Law       u-Law
  ABM 1
               -1.79       -2.12       -2.32       2.92        3.39         3.13     0.35    2.73
 (dBA/m)
  ABM 2
              -42.32      -40.37      -41.57      -43.04       -42.84      -43.1    -42.26   -42.38
 (dBA/m)
                                                                                                                     UMTS B2 /
  Signal                                                                                                  Axial
                                                                                                                       9400
  Quality      40.53       38.25       39.25       45.96       46.23       46.23    42.61    45.11
   (dB)
  Freq.
               Pass        Pass        Pass        Pass        Pass        Pass     Pass     Pass
Response
Remark: According to codec investigation, the worst codec bitrate is Opus 40Kbps

LTE FDD
                       Google Duo                                          WFC
                                                                                                                       Band /
              Opus         Opus        Opus       G.711       G.711                                    Orientation
  Codec                                                                    G.729    G.722    GSM                      Channel
              6kbps       40kbps      75kbps      a-Law       u-Law
  ABM 1
               0.63          0         0.74        2.38        2.49         2.47    3.81      2.5
 (dBA/m)
  ABM 2
              -38.72      -38.78      -38.57      -38.76       -38.4       -39.22   -36.99   -38.98
 (dBA/m)
                                                                                                                     B13 / 10M /
  Signal                                                                                                  Axial
                                                                                                                       23230
  Quality      39.35       38.78       39.31       41.14       40.89       41.69    40.8     41.48
   (dB)
  Freq.
               Pass        Pass        Pass        Pass        Pass        Pass     Pass     Pass
Response
Remark: According to codec investigation, the worst codec bitrate is Opus 40Kbps


LTE TDD
                       Google Duo                                          WFC
                                                                                                                       Band /
              Opus         Opus        Opus       G.711       G.711                                    Orientation
  Codec                                                                    G.729    G.722    GSM                      Channel
              6kbps       40kbps      75kbps      a-Law       u-Law
  ABM 1
               1.04        0.48        1.39        2.98        3.14        3.01     2.97      3.1
 (dBA/m)
  ABM 2
              -34.71      -34.55      -34.52      -33.03      -33.04       -32.32   -32.33   -32.98
 (dBA/m)
                                                                                                                     B38 / 20M /
  Signal                                                                                                  Axial
                                                                                                                       38000
  Quality      35.75       35.03       35.91       36.01       36.18       35.33    35.3     36.08
   (dB)
  Freq.
               Pass        Pass        Pass        Pass        Pass        Pass     Pass     Pass
Response
Remark: According to codec investigation, the worst codec bitrate is Opus 40Kbps




TEL : 886-3-327-3456                                                                                 Page : 21 of 25
FAX : 886-3-328-4978                                                                          Issued Date : Oct. 15, 2018
Form version: 180516


            HAC T-COIL TEST REPORT                                                                          Report No. : HA882724B
WLAN
                       Google Duo                                              WFC
                                                                                                                              Band /
              Opus         Opus        Opus       G.711        G.711                                          Orientation
  Codec                                                                        G.729    G.722      GSM                       Channel
              6kbps       40kbps      75kbps      a-Law        u-Law

  ABM 1
               0.89          0.1       0.98         3.1        3.13            3.12      3.54      3.24
 (dBA/m)

  ABM 2
              -38.16      -38.57      -38.21      -40.74       -40.37          -39.99   -39.44     -40.08
 (dBA/m)
                                                                                                                             WLAN2.4G
                                                                                                                     Axial
  Signal                                                                                                                        /6
  Quality      39.05       38.67       39.19       43.84       43.5            43.11    42.98      43.32
   (dB)
  Freq.
               Pass        Pass        Pass        Pass        Pass            Pass     Pass       Pass
Response
Remark: According to codec investigation, the worst codec bitrate is Opus 40Kbps


<Air Interface Investigation>
                                                                                                                             Signal
 Frequency                            BW                                                 ABM1            ABM2
   Bands
                 Modulation                        Data Rate            Channel                                              Quality
                                     (MHz)                                              dB (A/m)        dB (A/m)
                                                                                                                               dB
                   802.11b             20             1M                   6              0.15              -38.47            38.62
                   802.11b             20             11M                  6              0.11              -38.91           39.02
                   802.11g             20             6M                   6              0.06              -38.63           38.69
                   802.11g             20             54M                  6              0.18              -38.57           38.75
WLAN 2.4GHz
                802.11n-HT20           20            MCS0                  6             -0.02              -38.86           38.84
                802.11n-HT20           20            MCS7                  6              0.10              -38.90           39.00
                802.11n-HT40           40            MCS0                  6              0.16              -38.78           38.94
                802.11n-HT40           40            MCS7                  6              0.18              -38.73           38.91
                   802.11a             20             6M                  40             -0.28              -38.18           37.90
                   802.11a             20             54M                 40             -0.21              -38.43           38.22
                802.11an-HT20          20            MCS0                 40             -0.11              -38.04           37.93
                802.11an-HT20          20            MCS7                 40             -0.20              -38.36           38.16
                802.11an-HT40          40            MCS0                 38             -0.18              -38.44           38.26
                802.11an-HT40          40            MCS7                 38             -0.16              -38.49           38.33
WLAN 5GHz
               802.11ac-VHT20          20            MCS0                 40             -0.20              -38.44           38.24
               802.11ac-VHT20          20            MCS8                 40             -0.13              -38.33           38.20
               802.11ac-VHT40          40            MCS0                 38             -0.20              -38.34           38.14
               802.11ac-VHT40          40            MCS8                 38             -0.18              -38.34           38.16
               802.11ac-VHT80          80            MCS0                 50             -0.02              -38.17           38.15
               802.11ac-VHT80          80            MCS8                 50             -0.06              -38.28           38.22




TEL : 886-3-327-3456                                                                                       Page : 22 of 25
FAX : 886-3-328-4978                                                                                Issued Date : Oct. 15, 2018
Form version: 180516


          HAC T-COIL TEST REPORT                                                                          Report No. : HA882724B

                                                                                                   Ambient  Freq.
                                                                         ABM1 ABM2 Signal
Plot                                                          Probe                           T     Noise Response Frequency
     Air Interface       Mode          Channel Battery                     dB    dB Quality
No.                                                          Position                       Rating    dB   Variation Response
                                                                         (A/m) (A/m)   dB
                                                                                                    (A/m)     dB
                                                            Axial (Z)     0.52 -27.23 27.75  T3     -50.31
16     GSM850        EDGE 2 Tx Slots     189   Battery 1                                                     1.03      PASS
                                                         Transversal (Y) -4.29 -31.88 27.59  T3     -50.28
                                                              Axial (Z)   0.35 -30.17 30.52     T4     -50.22
17    GSM1900        EDGE 2 Tx Slots     661   Battery 1                                                          1.21      PASS
                                                           Transversal (Y) -3.69 -35.33 31.64   T4     -50.26
                                                              Axial (Z)   -2.12 -40.37 38.25    T4     -50.38
18    WCDMA II           HSPA           9400   Battery 1                                                           1.3      PASS
                                                           Transversal (Y) -4.55 -42.97 38.42   T4     -50.28
                                                              Axial (Z)   -4.68 -43.09 38.41    T4     -50.35
19    WCDMA IV           HSPA           1413   Battery 1                                                           2        PASS
                                                           Transversal (Y) -3.11 -41.90 38.79   T4     -50.24
                                                              Axial (Z)   -5.12 -42.93 37.81    T4     -50.31
20    WCDMA V            HSPA           4182   Battery 1                                                           2        PASS
                                                           Transversal (Y) -3.18 -41.79 38.61   T4     -50.23
                                                              Axial (Z)   0.00 -38.78 38.78     T4     -50.28
21 LTE Band 13 10M_QPSK_1_0 23230 Battery 1                                                                       1.23      PASS
                                                           Transversal (Y) -3.84 -42.91 39.07   T4     -50.20
                                                              Axial (Z)   0.48 -34.55 35.03     T4     -50.23
22 LTE Band 38 20M_QPSK_1_0 38000 Battery 1                                                                       1.15      PASS
                                                           Transversal (Y) -4.29 -38.09 33.80   T4     -50.22
                                                              Axial (Z)   0.10 -38.57 38.67     T4     -50.28
23 WLAN2.4GHz 802.11b 1Mbps               6    Battery 1                                                          0.91      PASS
                                                           Transversal (Y) -4.00 -40.59 36.59   T4     -50.26
                                                              Axial (Z)   0.10 -38.40 38.50     T4     -50.26
24 WLAN2.4GHz 802.11b 1Mbps               6    Battery 1                                                          1.11      PASS
                                                           Transversal (Y) -5.66 -42.09 36.43   T4     -50.28
                                                              Axial (Z)   -0.28 -38.18 37.90    T4     -50.22
25   WLAN5GHz        802.11a 6Mbps       40    Battery 1                                                          1.37      PASS
                                                           Transversal (Y) -5.47 -37.55 32.08   T4     -50.26
                                                              Axial (Z)   -0.18 -37.88 37.70    T4     -50.28
26   WLAN5GHz        802.11a 6Mbps       60    Battery 1                                                          1.25      PASS
                                                           Transversal (Y) -4.51 -36.66 32.15   T4     -50.22
                                                              Axial (Z)   -0.63 -38.71 38.08    T4     -50.26
27   WLAN5GHz        802.11a 6Mbps       124   Battery 1                                                          0.99      PASS
                                                           Transversal (Y) -4.09 -36.64 32.55   T4     -50.28
                                                              Axial (Z)   0.64 -37.65 38.29     T4     -50.24
28   WLAN5GHz        802.11a 6Mbps       157   Battery 1                                                          1.13      PASS
                                                           Transversal (Y) -4.82 -37.07 32.25   T4     -50.20
                                                              Axial (Z)   -0.17 -38.10 37.93    T4     -50.32
29   WLAN5GHz        802.11a 6Mbps       40    Battery 1                                                          1.16      PASS
                                                           Transversal (Y) -4.40 -41.09 36.69   T4     -50.20
                                                              Axial (Z)   -0.54 -39.15 38.61    T4     -50.29
30   WLAN5GHz        802.11a 6Mbps       60    Battery 1                                                          1.29      PASS
                                                           Transversal (Y) -4.98 -42.14 37.16   T4     -50.31
                                                              Axial (Z)   -1.58 -40.19 38.61    T4     -50.26
31   WLAN5GHz        802.11a 6Mbps       124   Battery 1                                                          1.97      PASS
                                                           Transversal (Y) -4.32 -41.14 36.82   T4     -50.24
                                                              Axial (Z)   -1.90 -40.06 38.16    T4     -50.28
32   WLAN5GHz        802.11a 6Mbps       157   Battery 1                                                          1.06      PASS
                                                           Transversal (Y) -4.99 -42.23 37.24   T4     -50.22

     Remark:
      1. Phone Condition: Mute on; Backlight off; Max Volume
      2. The detail frequency response results please refer to appendix A.
      3. Test Engineer:Steven Chang and Nick Yu




TEL : 886-3-327-3456                                                                                        Page : 23 of 25
FAX : 886-3-328-4978                                                                                 Issued Date : Oct. 15, 2018
Form version: 180516


          HAC T-COIL TEST REPORT                                                                 Report No. : HA882724B
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.

                                Uncertainty                                                      Standard       Standard
                                                Probability                   Ci       Ci
      Error Description           Value                           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 : Oct. 15, 2018
Form version: 180516


         HAC T-COIL TEST REPORT                                                     Report No. : HA882724B

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 : Oct. 15, 2018
Form version: 180516



Document Created: 2019-04-03 14:21:03
Document Modified: 2019-04-03 14:21:03

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