HAC T-Coil Report

FCC ID: OVF-K33BIC04

Test Report

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FCCID_1314369

                                                                                   FCC ID: OVF-K33BIC04




                            Hearing Aid Compatibility
                                     T-Coil

                          FCC 47 CFR section 20.19 Test Report



                          Single Band CDMA Cellular Phone

                                 FCC ID: OVF-K33BIC04
                                  Model: K33BIC-04




                                STATEMENT OF CERTIFICATION

    The data, data evaluation and equipment configuration represented herein are a true and
    accurate representation of the measurements of the sample’s HAC T-Coil characteristics as of
    the dates and at the times of the test under the conditions herein specified.

                                 STATEMENT OF COMPLIANCE
    This product was tested in accordance with the measurement procedures specified in ANSI
    C63.19-2007 and has been shown to be capable of compliance with the technical requirements
    of FCC 47 CFR section 20.19.

                           Kyocera Communications, Inc.
    Test Location:
                           10300 Campus Point Drive, San Diego CA 92121 USA
                           Thuy To
    Test performed by:                                           Date of Test:      06/14/10
                           Regulatory Engineer, Senior
                           Thuy To
    Report Prepared by:                                          Date of Report:    06/14/10
                           Regulatory Engineer, Senior
                           C. K. Li
    Report Reviewed by:                                          Date of Review:    06/14/10
                           Director of Regulatory Engineering




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                                                                  TABLE OF CONTENTS
1      Introduction........................................................................................................................................... 3
2      Equipment Under Test (EUT)............................................................................................................... 3
3      Summary of Test Results ..................................................................................................................... 4
4     Test conditions ..................................................................................................................................... 5
    4.1    Environmental Conditions ............................................................................................................. 5
    4.2    RF characteristics of the test site.................................................................................................. 5
    4.3    Ambient Noise of the test site ....................................................................................................... 5
    4.4    Test Signal, Frequencies and Output Power ................................................................................ 5
      4.4.1    CDMA2000 Test conditions ................................................................................................... 5
    4.5    EUT Operating Conditions ............................................................................................................ 6
5     Description of the test equipment......................................................................................................... 6
    5.1  Test Equipment Used.................................................................................................................... 6
    5.2  HAC T-Coil Measurement System................................................................................................ 7
    5.3  Audio Magnetic Probe................................................................................................................... 8
    5.4  Audio Magnetic Measuring Instrument (AMMI) ............................................................................ 8
    5.5  Audio Magnetic Calibration Coil (AMCC)...................................................................................... 8
6     System Validation & Calibration ........................................................................................................... 9
    6.1    Input Channel Calibration.............................................................................................................. 9
    6.2    Probe Calibration .......................................................................................................................... 9
    6.3    Reference Input Level ................................................................................................................... 10
      6.3.1    CMU200 Audio Codec Calibration......................................................................................... 10
      6.3.2    AMMI Signal Verification........................................................................................................ 10
7     Test Procedure ..................................................................................................................................... 11
    7.1    Test Positions................................................................................................................................ 12
    7.2    Audio Signals ................................................................................................................................ 12
    7.3    Scan Procedures........................................................................................................................... 13
      7.3.1    Signal Strength and SNR....................................................................................................... 13
      7.3.2    Frequency Response............................................................................................................. 13
8      Measurement Uncertainty .................................................................................................................... 14
9     T-Coil Requirements and Category...................................................................................................... 15
    9.1   RF Emissions ................................................................................................................................ 15
    9.2   Axial Field Intensity ....................................................................................................................... 15
    9.3   Signal Quality ................................................................................................................................ 15
    9.4   Frequency Response .................................................................................................................... 16
10 T-Coil Test Results ............................................................................................................................... 17
  10.1 Field Strength and Signal Quality.................................................................................................. 17
  10.2 Frequency Response .................................................................................................................... 18
11 Appendix A1: Probe Calibration Certification ....................................................................................... 19
12 Appendix A2: AMCC Calibration Certification ...................................................................................... 20
13 Appendix B1: Ambient Noise Plots, 1900 MHz .................................................................................... 21
14 Appendix C: System Calibration Results ............................................................................................. 22
15 Appendix D: ABM and SNR Test Results/Plots ................................................................................... 22
16 Appendix E: Photo Test Setup ............................................................................................................. 22




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1      Introduction

       This test report describes the Hearing Aid Compatibility (HAC) measurement of a wireless portable
       device manufactured by Kyocera Wireless Corp. (KWC). These measurements were performed for
       compliance with the rules and regulations of the U.S. Federal Communications Commission (FCC).
       The testing was performed in accordance with ANSI C63.19-2007.

       This report covers test and data on:

                    RF Emissions                   ANSI C63.19 Clause 4

                X   T-Coil                         ANSI C63.19 Clause 6



2      Equipment Under Test (EUT)

        Product:                                       Single Band CDMA Cellular Phone
        FCC ID:                                        OVF-K33BIC04
        Model Number:                                  K33BIC-04
        EUT Serial Number:                             F0000037984760
                                                       [ ] Identical Prototype
        Type:                                          [ X ] Pre-Production
                                                       [ ] Production
        Device Category:                               Portable
        RF Exposure Environment:                       General Population / Uncontrolled
        T-Coil Location:                               Same as speaker location
        Antenna:                                       Internal Antenna
        Detachable Antenna:                            No
        External Input:                                Audio/Digital Data
        Quantity:                                      Quantity production is planned
        Modes:                                         1900 CDMA
        Multiple Access Scheme:                        CDMA
        TX Frequency (MHz):                            1850 - 1910
        Rated RF Conducted Output Power (dBm):         23.0




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3      Summary of Test Results

                                              ANSI C63.19 (2007)
                                                   Section 6 T-coil
        Mode                         Test                        Test Results     T-Rating     Verdict
                    Min. Axial Field Strength, dB A/m                 2.66            4         Pass
        CDMA        Min. Radial Field Strength, dB A/m                -6.52           4         Pass
         1900       Min. Signal Quality (ABM1/ABM2), dB               43.55           4         Pass
                    Frequency Response @ Axial position                                         Pass

                                    Overall T-Rating :                           T4

                                            M-Rating* :                          M4

                             HAC Category Rating :                              M4, T4
       * M-rating obtained from HAC RF report.




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4       Test conditions

4.1     Environmental Conditions
        All tests were performed under the following environmental conditions:

         Ambient Temperature:                           23 ± 2 Degrees C
         Relative Humidity (RH):                        0% <RH < 80%
         Atmospheric Pressure:                          101.3kPa + 10 to –5 kPa


4.2     RF characteristics of the test site
        All HAC measurements were performed inside a shielded room that provide isolation from external EM
        fields, with the RF ambient at least 20 dB below the intended measurement limits.

4.3     Ambient Noise of the test site
        The test site’s ambient magnetic level were determined and found to be at least 10dB below the
        measurement data ABM2, unless a very low level of ABM2. Measurement of the ambient level was
        performed for each probe orientation and results are shown in Appendix B.

4.4     Test Signal, Frequencies and Output Power

        During tests, the EUT was put in in-call mode and controlled by a CDMA simulator to generate the
        required signal and power.

4.4.1   CDMA2000 Test conditions

        The device supports CDMA2000 in 1X (Phase I, Protocol revision 6) mode only. CDMA2000 1X
        includes TIA/EIA-95B as a subset and was approved for publishing in July 1999. It provides voice and
        data capabilities within a standard 1.25 MHz CDMA channel. This RF bandwidth is identical to the
        legacy IS-95 B system standard.

        Maximum average conducted powers were measured to ensure worst case power configuration was
        tested.
                                                    CONDUCTED POWER (dBm)
                          CONFIGURATION
                                                                 CDMA 1900
                               (Full Rate)
                                                     Ch25          Ch600     Ch1175
                        SO2            RC1           23.05         23.07         23.25
                                       RC3           23.10         23.18         23.24
                        SO3            RC1           23.02         23.01         23.08
                                       RC3           23.12         23.26         23.30
                        SO17           RC2           23.09         23.15         23.06
                                      RC54           23.12         23.11         23.16
                        SO55           RC1           23.08         23.12         23.26
                                       RC3           23.10         23.25         23.27
                        TDSO     RC3 (+F-SCH)        23.00         23.17         23.09
                        SO32      RC3 (+SCH)       23.08       23.24      23.14
                         Table 4.4.1 Conducted RF output power measured vs RC’s




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The following configuration was chosen:

         Protocol:                                 6 (IS-2000)
         Radio Configuration:                      3
         Power Control:                            All Up Bits
         Service Option:                           3
         Vocoder:                                  8K Enhanced (low)
         Data Rate:                                Full

       The measurement system measures power drift during HAC testing by comparing field strength in the
       same location at the beginning and at the end of measurement. These records were used to monitor
       stability of power output during tests. Conducted RF power measurements were also performed before
       and after each HAC measurements to confirm the output power.


4.5    EUT Operating Conditions
       The EUT was tested with the follow configurations and conditions, if applicable:

         X   Fully charged standard battery as supplied with the handset
             Open and Closed configurations, at ear use position
             Both retracted and extended antenna positions
         X   LCD Contrast High
             Simultaneous transmission with Bluetooth transmitter ON 2
         X   Volume setting at maximum
         X   Microphone muted

       Note
       1: This phone has only one configuration for ear usage
       2: This phone does not support Bluetooth


5      Description of the test equipment

5.1    Test Equipment Used
       Below is a list of the calibrated equipment used for the measurements:

         Description                                     Manufacturer         Model         Serial   Cal Due
                                                                             Number        Number     Date
         Power Meter                                      Giga-tronics          8541C     1831306    07/16/10
         Radio Communication Tester                    Rohde & Schwarz       CMU200        101328    03/29/11
         Data Acquisition                                    Speag              DAE4        602      06/17/10
         Audio Band Magnetic Probe                           Speag           AM1DV2         1045     09/22/10
         Audio Band Magnetic Measuring Instrument            Speag              AMMI        1035       N/A
         Helmholtz Coil                                      Speag              AMCC        1001       N/A
        Test Arch                                            Speag              HAC         1015       N/A
       The calibration certificates of Probe and Helmholtz Coil are attached in Appendix A.




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5.2    HAC T-Coil Measurement System
       The measurements were performed with Dasy4 automated near-field scanning system comprised of
       high precision robot, robot controller, computer, Magnetic probe, probe alignment sensor, non-
       conductive phone positioner, Test Arch and software extension. Figure 5.2 shows the setup and
       cabling. The overall expanded uncertainty (K=2) of the measurement system is ±12.3%. The
       measurement uncertainty budget is given in section 8.




                                  Figure 5.2a T-Coil setup with Helmholtz Coil




                                           Figure 5.2b Setup Cabling




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5.3    Audio Magnetic Probe

       Model:                 AM1D
       Application:           Active single sensor probe for both axial and radial measurement
                              scans
       Construction:          Fully RF shielded
                              Rounded tip of 6 mm diameter incorporating a pickup coil with its
                              center offset 3mm from the tip and the sides
                              Compatible with DAE, with adapted probe cup
       Frequency              ± 0.5dB of ideal differentiator from 100 Hz to 10 kHz
       Response:
       Linearity:             < 0.1 dB from 5 dB below limitation to 16 dB above noise level
       Dynamic Range:         Max 21 dB A/m @ 1 kHz, Noise level typ. –70 dB A/m @ 1kHz,
                              ABM2 typ. –60 dB A/m
       Sensitivity:           Typ. -24 dBV / A./m @ 1kHz at probe output
       RF Shielding:          Immunity to AM (1 kHz, 80%) modulation RF signal



5.4    Audio Magnetic Measuring Instrument (AMMI)

       Model:                AMMI
       Application:       AMMI is a desktop 19-inch unit containing a sampling unit, a waveform
                          generator for test and calibration signals and a USB interface.
       Connection:        Front connectors
                              Audio Out - audio signal to the base station simulator
                              Coil Out - test and calibration signal to the AMCC
                              Coil In - monitor signal from the AMCC BNO connector
                              Probe In - probe signal



5.5    Audio Magnetic Calibration Coil (AMCC)

       Model:                AMCC
       Application:       The Audio Magnetic Calibration coil is a Helmholtz Coil designed
                          according to ANSI C63.19-2006 section D.9, for calibration of the
                          AM1D probe. The two horizontal coils generate a homogeneous
                          magnetic field in the z direction. The DC input resistance is adjusted to
                          approximately 50 Ohm by a series resistor, and a shunt resistor of 10
                          Ohm allows monitoring the current with a scale of 1:10.
       Connection:           Coil In
                             Coil Monitor




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6      System Validation & Calibration

       At the beginning of the HAC T-coil measurement, a 3-phase calibration was performed per Speag
       instruction to ensure accurate measurement of the voltages and ABM field. Reference input level was
       also validated and calibrated per C63.19.


6.1    Input Channel Calibration

       Phase 1: The AMMI audio output was switched off, and a 200 mV_pp symmetric rectangular signal of 1
       kHz was generated and internally connected directly to both channels of the sampling unit (coil in,
       probe in).

       Phase 2: The AMMI audio output was off, and a 20 mV_pp symmetric 100 Hz signal was internally
       connected.

       The signals during phases 1 and 2 were available at the output on the rear panel of the AMMI. The
       output must however not be loaded in order not to influence the calibration. After the first two phases,
       the two input channels were both calibrated for absolute measurements of voltages. The resulting
       factors were displayed above the multimeter window.

       After phases 1 and 2, the input channels were calibrated to measure exact voltages.


6.2    Probe Calibration

       Phase 3: a multisine signal covering each third-octave band from 50 Hz to 5 kHz was generated and
       applied to both audio outputs. The probe was positioned in the center of the AMCC (user point “coil
       center”) and aligned in the z-direction, the field orientation of the AMCC. The Coil In channel was
       measuring the voltage over the AMCC internal shunt, which was proportional to the magnetic field in
       the AMCC. At the same time, the probe in channel samples the amplified signal picked up by the probe
       coil. The ratio of the two voltages – in each third-octave filter – leads to the calibration factor of the
       probe over the frequency band of interest for the spectral representation.

       The calibration result is shown in Appendix C. The internal calibration factors of the coil and probe
       channel are listed. The graphics represent the values (applying the calibration factors from the
       previous steps) for the probe and coil channel in dB V for each third-octave filter from 100 Hz to 5 kHz.
       The single values are interconnected with a blue line for the probe and a green line for the coil channel.

       The probe sensitivity in V / (A/m) at 1 kHz is calculated from the values in the chart. -20 dBV in the coil
       channel corresponds approx. to 1 A/m.

              Calibration Factors                                  Measured Value
              Probe Sensitivity, V/(A/m)                           0.0658
              Probe calibration factor, V                          1.1328
              Coil calibration factor, V                           2.3277




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6.3     Reference Input Level

        ANSI C63.19 requires the use of reference input level of –18dBm0 that correlate to a normal speech
        input level for CDMA air interface. In order to create the correct level the CMU200 audio codec and the
        AMMI output were calibrated.


6.3.1   CMU200 Audio Codec Calibration

        To determine the correct input level, the Encoder/Decorder of the CMU200 base station simulator was
        calibrated for measured full-scale input voltage level. The CMU200 0dBm0 input reference was
        determined utilizing the build-in functions of “Decoder Cal” and “Encoder Cal”.

         CMU200 S/N                Modulation                 Ref. I/P Level           Target Level
            101328                   CDMA                        -18dBm0                  -20.35


6.3.2   AMMI Signal Verification

        Verification of AMMI output level was performed before the compliance measurement. The measured
        results are showed in Table 6.3b

           Date             Signal         Measured AMMI           Target Reference           Delta
                                              Output                    Input
                                                (dBm0)                   (dBm0)                (dB)
                            1KHz                  -20.5                    -20.35              -0.15
         6/10/2010
                         300-3000 Hz             -20.49                    -20.35              -0.14
                                      Table 6.3b Measured Output Level




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7      Test Procedure

       The device was positioned and setup according to ANSI C63.19-2007. Figure 7.0 shows the T-Coil
       Signal measurement flowchart:


              •     Confirm calibration of Test Equipment
              •     Configure and validate test setup
              •     Establish WD reference level
              •     Find measurement locations




                    Position and orient probe
                    Measure desired audio band signal strength
                    Measure undesired audio band signal strength



              •     Calculate signal strength
              •     Calculate signal quality
              •     Measure frequency response (axial)




                                     All 3 locations
                                      measured?
                                                                       No

                                                Yes

                                 Intensity and response
                                       compliant ?
                                                                       No

                                                Yes
              Determine and record signal quality category                   Done




                                   Figure 7.0 T-Coil measurement flowchart




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7.1    Test Positions

       The device was placed on a non-conductive phone positioner under the Test Arch. The acoustic
       output of the EUT was aligned with the center point of the area formed by the dielectric wire and the
       middle bar of the arch’s top frame. Please refer to Appendix E for the test setup photos.


7.2    Audio Signals

       During tests signal was fed to the EUT via communication Test set. Proper gain setting was used in
       software to ensure correct signal level fed to communication test set speech input.

       The following audio signals were pre-defined by DASY4 and used for calibration and measurements:

       48k_voice_1kHz_1 s (duration 1 s): This signal is voice like and has been processed to have a narrow
       bandwidth mainly within the 1 kHz third-octave band and an even shorter duration of 1 second for
       faster measurement. This signal passes through a large variety of codecs and permits a direct
       amplitude and signal quality measurement (S/N) without considerable bandwidth compensation. Its
       spectrum is shown in a practical measurement in Figure 7.2a.




                                  Figure 7.2a 49k_voice_1kHz_1s signal spectrum


       Multisine signal 50 Hz – 5 kHz (duration 10 s): Signal with carrier centered in each third-octave band,
       as used during the calibration. Suited for frequency response measurements. Peak to RMS ratio: 11.1
       dB.


       48k_voice_300-3000 (duration 2 s): The signal is voice like and has been processed to have a
       duration of 2 seconds for fast measurement. At the same time, it has a flat spectrum across all third-
       octave band filters between 300 Hz to 3 kHz and is vanishing at the beginning and end in order to
       allow longer measurement sequences without transients. It has bandwidth sufficient for frequency
       response measurements. The spectrum is shown in a practical measurement in fig. 7.2b. The
       measurement window length of this signal must be set to a multiple of 2 s in order to integrate over the
       full voice sample. Peak to RMS ratio: 21.6 dB.




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                                   Figure 7.2b Boardband signal spectrum

7.3     Scan Procedures

7.3.1   Signal Strength and SNR

        a) A 50mm x 50mm (10mm step) coarse axial scan was performed to search for the “optimal points”
           and spatial distribution of ABM1.
        b) Base on the coarse scan results, a 16mm x 16mm (4mm step) fine scan in axial, a 24mmx16mm
           (4mm step) fine scan in radial_L, and a 16mmx24mm (4mm step) fine scan in radial-T coil
           orientation were performed for both ABM1and ABM2.




7.3.2   Frequency Response

        Base on the coarse axial scan results, a point axial scan was performed.




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8      Measurement Uncertainty
       Table 8.1 shows the uncertainty budget for HAC Audio Band Magnetic Field (AMB) assessment
       according to ANSI C63.19-2006. The budget is valid for the DASY4 system and represents a worst-
       case analysis. For specific tests and configurations, the uncertainty could be smaller.

               Uncertainty Description         Uncert.   Prob.   Div.     Ci       Ci      Stand.    Stand.
                                                Value    Dist.          (ABM1)   (ABM2)   Uncert    Uncert
                                                (± %)                                     (ABM1)    (ABM2)
                                                                                            (±%)      (±%)
        PROBE SENSITIVITY
        Reference level                          3.0      N      1.0       1       1        3.0       3.0
        AMCC geometry                            0.4      R      1.7       1       1        0.2       0.2
        AMCC current                             0.6      R      1.7       1       1        0.4       0.4
        Probe positioning during calibration     0.1      R      1.7       1       1        0.1       0.1
        Noise contribution                       0.7      R      1.7    0.0143     1         0        0.4
        Frequency slope                          5.9      R      1.7       1       1        0.3       3.5
        PROBE SYSTEM
        Repeatability / Drift                    1.0      R      1.7      1        1        0.6       0.6
        Linearity / Dynamic range                0.6      R      1.7      1        1        0.4       0.4
        Acoustic noise                           1.0      R      1.7     0.1       1        0.1       0.6
        Probe angle                              2.3      R      1.7      1        1        1.4       1.4
        Spectral processing                      0.9      R      1.7      1        1        0.5       0.5
        Integration time                         0.6      N      1.0      1        5        0.6       3.0
        Field distribution                       0.2      R      1.7      1        1        0.1       0.1
        TEST SIGNAL
        Reference signal spectral response       0.6      R      1.7      0        1        0         0.4
        POSITIONING
        Probe positioning                        1.9      R      1.7      1        1        1.1       1.1
        Phantom thickness                        0.9      R      1.7      1        1        0.5       0.5
        DUT positioning                          1.9      R      1.7      1        1        1.1       1.1
        EXTERNAL CONTRIBUTIONS
        RF interference                           0       R      1.7      1        1         0         0
        Test signal variation                    2.0      R      1.7      1        1        1.2       1.2

                                           COMBINED UNCERTAINTY
                                          Combined Standard Uncertainty (ABM):             4.1        6.1
                                         Extended Standard Uncertainty (k=2) [%]:          8.1       12.3
       N: Normal
       R: Rectangular

                    Table 8.1 Worst-Case uncertainty budget for HAC ABM assessment




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9      T-Coil Requirements and Category

9.1    RF Emissions

       EUT has to fulfill RF emission requirements at the axial measurement location.


9.2    Axial Field Intensity

       Table 9.2 shows the minimum limits for ABM1 field intensity:

             Component                 ABN1 Magnetic Field             Condition
                                              dB(A/m)
               Axial (z)                        ≥-18                   1 kHz, in 1/3 octave band filter
             Radial (x, y)                      ≥-18
                                  Table 9.2 ABM1 Intensity Requirements


9.3    Signal Quality

       Table 9.3 provides the signal quality requirement for the intended T-Coil signal from a Wireless Device.
       The worst Signal Quality of the axial and radial components of the magnetic field was used to
       determined the T-Coil category.

             Category                  Signal Quality (Signal+Noise to Noise) [dB]
                T1                                        0 to 10
                T2                                       10 to 20
                T3                                       20 to 30
                T4                                         > 30
          AWF=0

                                 Table 9.3 T-coil Signal Quality Categories




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9.4    Frequency Response

       The frequency response of the axial component must follow the frequency curve specified in ANSI
       C63.19-2007 section 7.3.2, over the frequency range 300-3000 Hz (Figure 9.4).

                                                          M a gne tic Fie ld Re sponse (300Hz to 3kHz) for de vice s w ith a fie ld £15dB (A/m ) a t 1 kHz

                                            20.00


                                                                           -4 dB/Oc t.
           dB relative to value at 1kHz




                                            10.00
                                                                                                                                    +2 dB


                                                                          +2 dB
                                             0.00
                                                                                                                                   -6 dB/Oc t.



                                           -10.00
                                                             +6 dB/Oct.

                                                                                                                                                    low er lim it
                                                                                                                                                    upper lim it
                                           -20.00
                                                100.00                                                 1000.00                                                 10000.00
                                                                                                  Frequency (Hz)



        Figure 9.4a Magnetic Field Response (300Hz to 3kHz) for devices with a field ≤15dB (A/m) at 1 kHz




                                                         Magnetic Fieldy Response (300Hz to 3kHz) for devices with a field that > -10dB (A/m) at 1
                                                                                                 kHz
                                          20.00
         dB relative to value at 1kHz




                                                                                               -4 dB/Oct.
                                                                                                                                  +2 dB
                                          10.00


                                                                          -2 dB
                                           0.00
                                                                                                                                      -7 dB/Oct.


                                          -10.00
                                                                                           6 dB/Oct.
                                                                                                                                                      lower limit
                                                                                                        -12 dB/Oct.                                   upper limit
                                          -20.00
                                               100.00                                                  1000.00                                                      10000.00
                                                                                                 Frequency (Hz)


       Figure 9.4b Magnetic Field Response (300Hz to 3kHz) for devices with a field that > -15dB (A/m) at 1 kHz




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10      T-Coil Test Results

10.1    Field Strength and Signal Quality

                                             ANSI C63.19 (2007)
                                              Section 6 T-coil
                                    Field Strength and Signal Quality
        Mode        Ch          Probe        Ambient      ABM1      ABM2    Signal    T-Rating
                               Position        Noise                        Quality
                                             (dB A/m) (dB A/m) (dB A/m)      (dB)
                                Axial (z)       -55.68     2.66    -48.19    50.85       4
                    25        Radial_L (x)      -58.66     -4.46   -48.01    43.55       4
                              Radial_T (y)      -59.01     -5.72   -52.95    47.23       4
                                Axial (z)       -55.68     4.29    -46.97    51.26       4
        CDMA
                    600       Radial_L (x)      -58.66     -1.48   -45.96    44.48       4
         1900
                              Radial_T (y)      -59.01     -4.97   -52.65    47.68       4
                                Axial (z)       -55.68     3.59    -47.63    51.22       4
                    1175      Radial_L (x)      -58.66     -3.63   -47.03    43.40       4
                              Radial_T (y)      -59.01     -6.52   -54.31    47.79       4

Note:
   •    Signal Quality = ABM1/ABM2
   •    Bold Number = worst case in each category
   •    Data plots are showed in Appendix D




HAC T-Coil Report                                Page 17 of 22              Model: K33BIC-04, S1310


                                                                                   FCC ID: OVF-K33BIC04



10.2   Frequency Response

                                           ANSI C63.19 (2007)
                                                Section 6 T-coil
                                           Frequency Response
              Mode           Probe Position              Signal Type                    Result
          CDMA-1900                Axial                    Voice                        Pass


   Figure 10.2 show the worst case frequency response of the axial component of the magnetic field.




                       Figure 10.2a CDMA 1900 Channel 600 Frequency Response




HAC T-Coil Report                              Page 18 of 22                    Model: K33BIC-04, S1310


ZPP K4OCERG


   Calibration Laboratory of                                              w¥ 7
                                                                                                                       Schweizerischer Kallbrierdienst
   Schmid & Partner                                                                                                    Service suisse d‘étalonnage
     Engineering AG                                                                                                    Servizio svizzero di taratura
   Zeughausstrasse 43, 8004 Zurich, Switzerland                                                                        Swiss Calibration Service



    Accredited by the Swiss Accreditation Service (SAS)                                             Accreditation No.: SCS 108
    The Swiss Accreditation Service is one of the signatories to the EA
    Multilateral Agreement for the recugnltlnn of calibration certifu:atas
    Client     Kyut:era USA
                                                                                                    ‘CertificateNo:AM1DV2—1045_Sepo9
    CALIBRATION CERTIFICATE
    Object



    Calibration procedure(s)             :QA GAL-24 v2\
                                         ‘Calibration, proceclure
                                                                furAM1Dmagnetlc flflld
                                                                                   pmhesand TMEFSm
                                                                                                 the
                                          audio range .

    Calibration date:                     Septernber.zé,--flfl'fla
    Condition of the calibrated item      In TDIEfElnEE :


    This calibration certificate documents the traceability to national standards, which realize the physical units of measurements (S!).
    The measurements and the uncertainties with confidence probability are given on the following pages and are part of the certificate.


    All calibrations have been conducted in the closed laboratory facility: environment temperature (22 + 3)°C and humidity <70%

     Calibration Equipment used (MATE critical for calibration)


     Primary Standards                      ID #                      Cal Date (Certificate NMo.)                           Scheduled Calibration
     Keithley Multimeter Type 2001          SN: 0810278               30—Sep—08 (No: 7670)                                  Sep—O9
     Reference Probe AM1OV2                 SN: 1008                  12—Jan—09 (No. AM1D—1008_Jan0og)                      Jan—10
     DAE4                                   SN: 781                   20—Feb—089 (No,. DAE4—781_Febh09)                     Feb—10



     Secondary Standards                    iD #                      Check Date (in house)                                | Scheduled Check
     AMCC                                   1050                      30—Jul—09 (in house check Jul—09)                    | Jul—10




                                            Name                                   Function                                 S|gnalure
     Calibrated by:                       ~Fin Bomhalt..                          ‘R&D Director

     Approved by:                         Katia Pokovic‘ | . f                      Lfihnfatbfi?flir?_fitpr j



                                                                                                                            Issued: September 24, 2000
     This calibration certificate shall not be reproduced except in full without written approval of the laboratory.


ZP} K4OCERa


     Schmid & Partner Engineering AG                                  s                       e           a

     Zeughausstrasse 43, 8004 Zurich, Switzerland
     Phone +41 1 245 9700, Fax +41 1 245 9779 .
     info@speag.com, http:/{www.speag.com




     Certificate of conformity

      Item                                     Magnetic
                                       AMCC

      Series                           1
      Manufacturer / Origin            Schmid &


    Description of the item
    The Audio Magnetic Calibration coil (AMCC) is a Helmholtz Coil designed according to standard [1],
    section D.9 for calibration of the AM1D probe. Two horizontal coils are positioned above a non—metallic
    base plate and generate a homogeneous magnetic field in the z direction (normal to it).

    Configuration
    The AMCC consists of two parallel coils of 20 turns with radius 143 mm connected in parallel in a
    distance of 143 mm. With this design, a current of 10 mA produces a field of 1 A/m.
    The DC input resistance at the input BNC socket is adjusted by a series resistor to a DC resistance of
    approximately 50 Ohm. The voltage required to produce a field of 1 A/m is consequently approx. 500
    mV.
    To current through the coil is monitored via a shunt resistor of 10 Ohm +/— 1%. The voltage is available
    on a BNO socket with 100 mV corresponding to 1 A/m.

    Handling of the item
    The coil shall be positioned in a non—metallic environment to avoid distortion of the magnetic field.

    Tests

     Test                   Requirement                                    Details                            Units tested
     Number of turns        N = 20 per colil                               Resistance measurment              all
     Orientation of         parallel coils with same direction of          Magnetic field variation in        all
     coils                  windings            f                          the AMCC axis
     Coil radius            r= 143 mm                                      mechanical dimension               First article
     Coil distance          d = 143 mm                                     mechanical dimension               First article
                            distance between coil centers
     Input resistance       51.7 +/— 2 Ohm                                 DC resistance at BNC               all
                                                                          input connector
     Shunt resistance       R =10.0 Ohm +/—1 %                            DC resistance at BNO                all
                                                                          output connector
     Shunt sensitivity      He = 1 Aim per 100 mV                         Field measurement                   First article
                            according to formula                          compared with Narda
                             Hc = (U /R) * N / r / (1.2541.5)             ELT400 + BN2300/80.10

    Standards
    [1] ANSIPC6E3.19—2006 Draft 3.12

    Conformity
    Based on the tests above, we certify that this item is in compliance with the requirements of [1].

   Date                                    22.5.2006

                                                          &           2e      a
   Stamp / Signature                                      Schmé            sy@nginseringAG    _
                                                          Zeu         aspe     43, $   arich pypbcaacls
                                                          Phong +411 Z45@¥r0thfuak      TA    V
                                                          into®spaag.com, http://www.speasg.com




                                                                      .                                        n «oo n n nz on sAz NE D M   W OCTPY   N2   P W   L V


                                                         FCC ID: OVF-K33BIC04


13     Appendix B1: Ambient Noise Plots, 1900 MHz




Ambient Noise Spectrum
Plot Axial (z)




Ambient Noise Spectrum Plot
Radial Longitudinal (x)




Ambient Noise Spectrum Plot
Radial Transversal (y)




HAC T-Coil Report                      Page 21 of 22   Model: K33BIC-04, S1310


                                                          FCC ID: OVF-K33BIC04



14     Appendix C: System Calibration Results




15     Appendix D: ABM and SNR Test Results/Plots

       (See attachment)


16     Appendix E: Photo Test Setup

       (see attachment)




HAC T-Coil Report                       Page 22 of 22   Model: K33BIC-04, S1310



Document Created: 2010-06-22 15:06:19
Document Modified: 2010-06-22 15:06:19

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