TCoil Test Report

FCC ID: ZNFLS885

Test Report

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FCCID_2324696

x 2 PCTEST HEARING AID COMPATIBILITY Applicant Name: Date of Testing: LG Electronics MobileComm U.S.A, Inc. 6/9/2014 1000 Sylvan Avenue Test Site/Location: Englewood Cliffs, NJ 07632 PCTEST Lab, Columbia, MD, USA United States Test Report Serial No.: OY1406091182.2NF FCC ID: ZNFLS885 ; APPLICANT: LG ELECTRONICS MOBILECOMM U.S.A, INC. ; Scope of Test: Audio Band Magnetic Testing (T—Coil) Application Type: Class II Permissive Change FCC Rule Part(s): CFR §20.19(b) HAC Standard: ANSI C63.19—2011 EUT Type: Portable Handset Model(s): LGLS885, LG—LS885, LS885 Test Device Serial No.: Pre—Production Sample [S/N: HAC (T—coil)] Class II Permissive Change(s): See FCC Change Document Original Grant Date: 06/09/2014 C63.19—2011 HAC Category: T3 (SIGNAL TO NOISE CATEGORY) This wireless portable device has been shown to be hearing—aid compatible under the above rated category, specified in ANSV/IEEE Std. C63.19—2011 and has been tested in accordance with the specified measurement procedures. Test results reported herein relate only to the item(s) tested. Hearing—Aid Compatibility is based on the assumption that all production units will be designed electrically identical to the device tested in this report. North American Bands only. I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. 1 assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. Randy Ortanez President :ACCREDIT:ED Testino centezos1.01 z. RCTEST Reviewed by: FCC ID:ZNFLS885 —’f\,— HAC (T—COIL) TEST REPORT @ LG . Quality Manager Filename: Test Dates: EUT Type: Page 1 of 37 0Y1406091182.2NF 61912014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/714

T A B L E O F C O N T E N T S 1. INTRODUCTION ................................................................................................................................... 3 2. TEST SITE............................................................................................................................................. 4 3. EUT DESCRIPTION .............................................................................................................................. 5 4. ANSI C63.19-2011 PERFORMANCE CATEGORIES .......................................................................... 6 5. METHOD OF MEASUREMENT ............................................................................................................ 8 6. FCC 3G MEASUREMENTS ................................................................................................................ 18 7. TEST SUMMARY ................................................................................................................................ 19 8. MEASUREMENT UNCERTAINTY ...................................................................................................... 23 9. EQUIPMENT LIST ............................................................................................................................... 24 10. CALIBRATION CERTIFICATES ........................................................................................................ 25 11. CONCLUSION ................................................................................................................................... 32 12. REFERENCES .................................................................................................................................. 33 13. TEST SETUP PHOTOGRAPHS ....................................................................................................... 35 Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 2 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

1. INTRODUCTION On July 10, 2003, the Federal Communications Commission (FCC) adopted new rules requiring wireless manufacturers and service providers to provide digital wireless phones that are compatible with hearing aids. The FCC has modified the exemption for wireless phones under the Hearing Aid Compatibility Act of 1998 (HAC Act) in WT Docket 01-309 RM-86581 to extend the benefits of wireless telecommunications to individuals with hearing disabilities. These benefits encompass business, social and emergency communications, which increase the value of the wireless network for everyone. An estimated more than 10% of the population in the United States show signs of hearing impairment and of that fraction, almost 80% use hearing aids. Approximately 500 million people worldwide and 30 million people in the United States suffer from hearing loss. Compatibility Tests Involved: The standard calls for wireless communications devices to be measured for:  RF Electric-field emissions  T-coil mode, magnetic-signal strength in the audio band  T-coil mode, magnetic-signal frequency response through the audio band  T-coil mode, magnetic-signal and noise articulation index The hearing aid must be measured for:  RF immunity in microphone mode  RF immunity in T-coil mode In the following tests and results, this report includes the evaluation for a wireless communications device. Figure 1-1 Hearing Aid in-vitu 1 FCC Rule & Order, WT Docket 01-309 RM-8658 Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 3 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

2. TEST SITE I. Test Facility / Accreditations: Measurements were performed at an independent accredited PCTEST Engineering Lab located in Columbia, MD, U.S.A.  PCTEST Lab is accredited to ISO 17025-2005 by the American Association for Laboratory Accreditation (A2LA) in Specific Absorption Rate (SAR) testing, Hearing- Aid Compatibility (HAC), Long-Term Evolution (LTE), CTIA Test Plans, and wireless testing for FCC and Industry Canada Rules.  PCTEST Lab is accredited to ISO 17025 by U.S. National Institute of Standards and Technology (NIST) under the National Voluntary Laboratory Accreditation Program (NVLAP Lab code: 100431-0) in EMC, FCC and Telecommunications.  PCTEST facility is an FCC registered (PCTEST Reg. No. 90864) test facility with the site description report on file and has met all the requirements specified in Section 2.948 of the FCC Rules and Industry Canada (IC-2451).  PCTEST Lab is a recognized U.S. Conformity Assessment Body (CAB) in EMC and R&TTE (n.b. 0982) under the U.S.-EU Mutual Recognition Agreement (MRA).  PCTEST TCB is a Telecommunication Certification Body (TCB) accredited to ISO/IEC Guide 65 by the American National Standards Institute (ANSI) in all scopes of FCC Rules and all Industry Canada Standards (RSS).  PCTEST facility is an IC registered (IC-2451) test laboratory with the site description on file at Industry Canada. Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 4 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

3. EUT DESCRIPTION FCC ID: ZNFLS885 Applicant: LG Electronics MobileComm U.S.A, Inc. 1000 Sylvan Avenue Englewood Cliffs, NJ 07632 United States Model(s): LGLS885, LG-LS885, LS885 Serial Number: HAC (T-coil) HW Version: Rev. 1.0 SW Version: LS885dv1 Antenna: Internal Antenna HAC Test Configurations: Cell. CDMA, 564*, 1013, 384, 777, BT Off, WLAN Off, LTE Off PCS CDMA, 25, 600, 1175, BT Off, WLAN Off, LTE Off *Note: Cell. CDMA ch. 564 is the Part 90S test channel. EUT Type: Portable Handset Voice over Digital Band Simultaneous WIFI Low Additional GSM Air‐Interface Type Transport HAC Tested Transport (MHz) But Not Tested Power Power Reduction OTT Capability 835 VO Yes Yes: WIFI or BT N/A N/A N/A CDMA 1900 EVDO DT No Yes: WIFI or BT Yes N/A N/A 850 LTE 1900 DT No Yes: WIFI or BT Yes N/A N/A 2600 2450 5200 WIFI 5300 DT No Yes: CDMA or LTE Yes N/A N/A 5500 5800 BT 2450 DT No Yes: CDMA or LTE N/A N/A N/A Type Transport VO = Voice Only DT = Digital Data ‐ Not intended for CMRS Service Table 3-1: ZNFLS885 HAC Air Interfaces Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 5 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

4. ANSI C63.19-2011 PERFORMANCE CATEGORIES I. MAGNETIC COUPLING Axial and Radial Field Intensity All orientations of the magnetic field, in the axial and radial position along the measurement plane shall be ≥ -18 dB(A/m) at 1 kHz in a 1/3 octave band filter per §8.3.1. Frequency Response The frequency response of the axial component of the magnetic field shall follow the response curve specified in EIA RS-504-1983, over the frequency range 300 Hz – 3000 Hz per §8.3.2. MAGNETIC FIELD STRENGTH RELATIVE TO 1000 Hz 20 dB Relative to Value at 1 kHz -4 dB/Oct. 10 +2 dB -2 dB 0 -6 dB/Oct. -10 6 dB/Oct. -20 300 500 1000 2000 3000 FREQUENCY (Hz) Figure 4-1 Magnetic field frequency response for Wireless Devices with an axial field ≤-15 dB (A/m) at 1 kHz MAGNETIC FIELD STRENGTH RELATIVE TO 1000 Hz 20 -4 dB/Oct. dB Relative to Value at 1 kHz 10 +2 dB -2 dB 0 -7 -10 6 dB/Oct. -12 -20 300 500 1000 2000 3000 FREQUENCY (Hz) Figure 4-2 Magnetic Field frequency response for wireless devices with an axial field that exceeds -15 dB(A/m) at 1 kHz Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 6 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

Signal Quality The table below provides the signal quality requirement for the intended audio magnetic signal from a wireless device. 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. The only criterion that can be measured is the RF immunity in T-coil mode. This is measured using the same procedure as the audio coupling mode at the same levels. The signal quality of the axial and radial components of the magnetic field was used to determine the T-coil mode category. Telephone RF Parameters Category Wireless Device Signal Quality [(Signal + Noise)-to-noise ratio in dB] T1 0 to 10 dB T2 10 to 20 dB T3 20 to 30 dB T4 > 30 dB Table 4-1 Magnetic Coupling Parameters Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 7 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

METHOD OF MEASUREMENT 1. Test Setup The equipment was connected as shown in an acoustic/RF hemi—anechoic chamber: __________ _______________________ l 7/1,1, i obe Sensor Y¥ D Probe Amplifier Sine tone, P.50, WN Figure 5—1 Validation Setup with Helmholtz Coll : % Amplifier :) Probe Sensor Figure 5—2 T—Coil Test Setup > Reviewed by: FCC ID:ZNFLS885 z) PETEST HAC (T—COIL) TEST REPORT @ LG _ Y haymaviss nappeasunt .M Quality Manager Filename: Test Dates: EUT Type: Page 8 of 37 OY1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

II. Scanning Mechanism Manufacturer: TEM Accuracy: + 0.83 cm/imeter Minimum Step Size: 0.1 mm Maximum speed 6.1 cm/sec Line Voltage: 115 VAC Line Frequency: 60 Hz Material Composite: Delrin (Acetal) Data Control: Parallel Port Figure 5—3 Dynamic Range (X—Y—Z): 45 x 31.75 x 47 om RF Near—Field Scanner Dimensions: 36" x 25" x 38" Operating Area: 36" x 49" x 55" Reflections: <—20 dB (in anechoic chamber) IIL. ITU—T P.50 Artificial Voice Manufacturer: ITU—T Active Frequency 100 Hz — 8 kHz Range: Stimulus Type: Male and Female, no spaces Single Sample 20.96 seconds Duration: ' Activity Level: 100% Figure 5—4 Spectral Characteristic of full P.50 Figure 5—5 Temporal Characteristic of full P.50 — Reviewed by: Foo ID:ZNFLSS35 ff\,m HAG (T—colL) TEsT REPORT @ LG Y Quality Manager Filename: Test Dates: EUT Type: p 9 of 37 0y1408091182.2NF sorors Portable Handsct age 0 © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24714

Figure 5-6 Magnetic Measurement Processing Steps IV. Test Procedure 1. Ambient Noise Check per C63.19 §7.3.1 a. Ambient interference was monitored using a Real-Time Analyzer between100-10,000 Hz with 1/3 octave filtering. b. “A-weighting” and Half-Band Integration was applied to the measurements. c. Since this measurement was measured in the same method as ABM2 measurements, this level was verified to be more than 10 dB below the lowest measurement signal (which is the highest ABM2 measurement for a T4 WD). Therefore the maximum noise level for a T4 WD with an ABM1 = -18 dBA/m is: -18 - 30 - 10= -58 dBA/m 2. Measurement System Validation(See Figure 5-1) a. The measurement system including the probe, pre-amplifier and acquisition system were validated as an entire system to ensure the reliability of test measurements. b. ABM1 Validation The magnetic field at the center of the Helmholtz coil is given by the equation (per C63.19 Annex D.10.1): V N( ) NI R Hc   3 r 1.25 r 1.25 3 Where Hc = magnetic field strength in amperes per meter N = number of turns per coil For the Helmholtz Coil, N=20; r=0.13m; R=10.193Ω and using V=29mV: 0.029 20  ( ) Hc  10.193  0.31623 A / m  10dB ( A / m) 0.13  1.253 Therefore a pure tone of 1kHz was applied into the coils such that 29 mV was observed across the 10 Ω resistor. The voltmeter used for measurement was verified to be capable of measurements in the audio band range. This theoretically generates an expected field of -10 dB(A/m) in the center of the Helmholtz coil which was used to validate the probe measurement at -10dB(A/m). This was verified to be within ± 0.5 dB of the -10dB(A/m) value (see Page 22). Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 10 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

c. Frequency Response Validation The frequency response through the Helmholtz Coil was verified to be within 0.5 dB relative to 1kHz, between 300 – 3000 Hz using the P.50 signal as shown below: Figure 5-7 Frequency Response Validation d. ABM2 Measurement Validation WD noise measurements are filtered with A-weighting and Half-Band Integration over a frequency range of 100Hz – 10kHz to process ABM2 measurements. Below is the verification of the system processing A-weighting and Half-Band integration between system input to output within 0.5 dB of the theoretical result: Table 5-1 ABM2 Frequency Response Validation HBI, A - HBI, A - f (Hz) Measured Theoretical dB Var. (dB re 1kHz) (dB re 1kHz) 100 -16.180 -16.170 -0.010 125 -13.257 -13.250 -0.007 160 -10.347 -10.340 -0.007 200 -8.017 -8.010 -0.007 250 -5.925 -5.920 -0.005 315 -4.045 -4.040 -0.005 400 -2.405 -2.400 -0.005 500 -1.212 -1.210 -0.002 630 -0.349 -0.350 0.001 800 0.071 0.070 0.001 1000 0.000 0.000 0.000 1250 -0.503 -0.500 -0.003 1600 -1.513 -1.510 -0.003 2000 -2.778 -2.780 0.002 2500 -4.316 -4.320 0.004 3150 -6.166 -6.170 0.004 4000 -8.322 -8.330 0.008 5000 -10.573 -10.590 0.017 6300 -13.178 -13.200 0.022 8000 -16.241 -16.270 0.029 10000 -19.495 -19.520 0.025 Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 11 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

ABM2 Frequency Response Validation (LISTEN) 10 0 100 1000 10000 -10 dBV, A weighted, HBI -20 -30 HBI, A - Measured HBI, A - Theoretical -40 -50 Frequency (Hz) Figure 5-8 ABM2 Frequency Response Validation The ABM2 result is a power sum from 100Hz to 10kHz with half-band integration and A- weighting. To verify the power sum measurement, a power sum over the full band was measured and verified to track with the source level (See Figure 5-9). Therefore the setup in this step was used to verify the power sum post-processing for ABM2 measurements. See below block diagram: Figure 5-9 ABM2 Validation Block Diagram The power summed output results for a known input were compared to the multi-meter results to verify any deviation in the post-processing implemented with the power-sum. Table 5-2 ABM2 Power Sum Validation WN Input Power Sum Multimeter-Full Dev (dB) (dBV) (dBV) (dBV) -60 -60.36 -60.2 0.16 -50 -50.19 -50.13 0.06 -40 -40.14 -40.03 0.11 -30 -30.13 -30.01 0.12 -20 -20.12 -20 0.12 -10 -10.14 -10 0.14 Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 12 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

ABM2 Power Sum Validation (LISTEN) -10 -20 -30 Measured Level (dBV) -40 Power Sum (dBV) Multimeter-Full (dBV) -50 -60 -70 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 WN Input (dBV) Figure 5-10 ABM2 Power Sum Validation 3. Measurement Test Setup a. Fine scan above the WD (TEM) i. A multitone signal was applied to the handset such that the phone acoustic output was stable within 1dB over the probe settling time and with the acoustic output level at the C63.19 specified levels (below). The measurement step size was in 2 mm increments at a distance of 10 mm between the surface of the wireless device as shown below: Figure 5-11 Measurement Distance . ii. After scanning, the planar field maximum point was determined. The position of the probe was moved to this location to setup the test using the sound check system. iii. These steps were repeated for all T-coil orientations (axial and radial) per Figure 5-16 after a T-coil orientation was fully measured with the SoundCheck system. b. Speech Signal Setup to Base Station Simulator i. C63.19 Table 7-1 states audio reference input levels for various technologies: Input Level Standard Technology (dBm0) TIA/EIA/IS-2000 CDMA -18 J-STD-007 GSM (217) -16 T1/T1P1/3GPP UMTS (WCDMA) -16 iDENTM TDMA (22 and 11 Hz) -18 Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 13 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

The CMU200 audio levels were determined using base station simulator manufacturer calibration procedures resulting in the below corresponding voltages relative to handset test point level (in dBmO): Table 5§—3 CMU200 Voltage Input Levels for Audio dBmO Ref Input Voltage Notes From CDMAZK "DECODER CAL" 3.14 dBm0 10520 mV 0.4 dBV ||(What is needed through Encoder for FS) 18 dBm0 92.260 mV —20.7 dBV |For 8k Enhanced (Low) C. Real—Time Analyzer (RTA) The Real—Time Analyzer was configured to analyze measurements using 1/3 Octave band weighted filtering. d. WD Radio Configuration Selection The device was chosen to be tested in the worst—case ABM2 condition under RC1/S03 (CDMA — EVRC) (see below): Figure 512 Vocoder Analysis for ABM Noise 4. Signal Quality Data Analysis a. Narrow—band Magnetic Intensity The standard specifies a 1kHz 1/3 octave band minimum field intensity for a sine tone. The ABM1 measurements were evaluated at 1kHz with 1/3 octave band filtering over an averaged period of 10 seconds. b. Frequency Response i. The appropriate frequency response curve was measured to curves in Figure 4—1 or Figure 4—2between 300 — 3000 Hz using digital linear averaging (limit lines chosen according to measurement found in step 4a). A linear average over 3x the length of the artificial voice signal (3x sampling) was performed. A 10 second delay was configured in the measurement process of the stimulus to ensure handset vocoder latency effects and echo cancellation devices (if any) were appropriately stabilized during measurements. The appropriate post—processing was applied according to the system processing chain illustrated in Figure 5—13. All R10 frequencies were plotted with respect to OdB at 1kHz value and aligned with respect to the EIA—504 mask. Foo ID:2NFLSSES eeresr HAc (T—coll) TEST REPORT @ LG Reviewed by: Quality Manager Filename: Test Dates: EUT Type: Page 14 of 37 ovi40so0t182.20r srrzona Portable Handset © 2014 PCTEST Enginesring Laboratory, mo. Revsom O3r24M4

Figure 5-13 Frequency Response Block Diagram iii. The margin is represented by the closest measured data point on the curve to the EIA-504 limit lines, in dB. c. Signal Quality Index i. Ensuring the WD was at maximum RF power, maximum volume, backlight on, display on, maximum contrast setting, keypad lights on (when possible) with no audio signal through the vocoder, the WD was measured over at least 100 Hz – 10,000 Hz, maximized over 5 seconds with a 50ms sample time for the ABM2 measurement (5 second time period is used in noise measurements under standards such as IEEE 269, etc.). ii. After applying half-band integration and A-weighting to the result, a power sum was applied over each 1/3 octave bandwidth frequency for an ABM2 value. iii. This result was subtracted from the ABM1 result in step a, to obtain the Signal Quality. V. Test Setup Integrator 1/3 Octave Bandpass Filter Probe Coil (Shown in Axial Position) RMS Voltmeter Wireless Device Graphics Recorder Reference Signal Base Station Antenna replaced Source Simulator with Coaxial Connection Controller Figure 5-14 Audio Magnetic Field Test Setup VI. Deviation from C63.19 Test Procedure None. Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 15 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

VII. Air Interface Technologies Tested WIFI and all 3G packet services were not tested for this device since they are considered ‘Over—the—Top‘ applications and are not within the current definition of a managed CMRS service. VIII. Wireless Device Channels and Frequencies The frequencies listed in the table below are those that lie in the center of the bands used for cellular telephony. Low, middle and high channels were tested in each band for FCC compliance evaluation to ensure the maximum emission is captured across the entire band. To facilitate setting of a base station simulator for ABM measurements, specific band plan channel numbers are listed that may be used in lieu of the band center frequencies. Table 54 Center Channels and Frequencies Test frequencies & associated channels Channel Fri?n:s)‘cy Cellular 850 384 (CDMA) 836.52 PCS 1900 600 (CDMA) | 1880 IX. RF Emission Effect on T—coil Measurements Figure §—15 High power RF Emissions Effect with HAC Dipole on the T—coil Probe System 10mm between dipole maximum and magnetic probe FCC ID:2NFLSEE5 mReSresr Hac (T—colL) TEst REPoRT @ Le Reviewed eviewed by: by: uality Manager Filename: Test bates: EUT Type: Page age 16 190 or 37 ovi4dsoon 182 20r serone Portable Handset ©2014 PCTEST Engineenng Laboratory, o. REV 3.0M o3rz44

X. Test Flow The flow diagram below was followed (From C63.19):  Confirm calibration of test equipment  Configure and validate test setup  Establish WD reference level  Scan for 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 Both locations measured? N Y Intensity and Frequency response N compliant? Y Determine and record signal Done Quality category Figure 5-16 C63.19 T-Coil Signal Test Process Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 17 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

6. FCC 3G MEASUREMENTS Radio Configuration 1, Service Option 3 (thick, green data curve) was used for the testing as the worst- case configuration for the handset due to vocoder gating from the EVRC logic. See below plot for ABM noise comparison between operational field service options and radio configurations for a CDMA2000 handset: Figure 6-1 CDMA Audio Band Magnetic Noise I. ABM Measurements Table 6-1 FCC 3G ABM Measurements for ZNFLS885 ABM2 Pre-Test (dBA/m), A, HBI RC1/SO3 RC3/SO3 RC4/SO3 Orientation Channel -39.00 -55.75 -55.95 Radial 600 ABM1 Pre-Test (dBA/m) RC1/SO3 RC3/SO3 RC4/SO3 Orientation Channel -13.160 -13.170 -13.020 Radial 600  Mute on; Backlight on; Max Volume, Max Contrast  CDMA: Power Control Bits = "All Up" Figure 6-2 Audio Band Magnetic Curve Measurement Block Diagram Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 18 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

7. TEST SUMMARY I. T-Coil Test Summary Table 7-1 Table of Results for CDMA Minimum C63.19 Sec. Mode Band Test Description Measured Verdict Limit* dBA/m dBA/m PASS/FAIL 8.3.1 Intensity, Axial -18 -2.3 PASS 8.3.1 Intensity, Radial -18 -13.4 PASS 8.3.4 CDMA Cellular Signal-to-Noise/Noise, Axial 20 39.9 PASS 8.3.4 Signal-to-Noise/Noise, Radial 20 25.8 PASS 8.3.2 Frequency Response, Axial 0 1.6 PASS 8.3.1 Intensity, Axial -18 -2.3 PASS 8.3.1 Intensity, Radial -18 -13.5 PASS 8.3.4 CDMA PCS Signal-to-Noise/Noise, Axial 20 39.5 PASS 8.3.4 Signal-to-Noise/Noise, Radial 20 25.8 PASS 8.3.2 Frequency Response, Axial 0 1.5 PASS Note: The above summary table represents the worst-case numerical values according to configurations in Table 7-3. Table 7-2 Consolidated Tabled Results Volume Cellular PCS Setting Axial Radial Axial Radial Freq. Response Margin PASS N/A PASS N/A Magnetic Intensity Verdict Maximum PASS PASS PASS PASS FCC SNR Verdict PASS PASS PASS PASS Note: Result shown is for T-coil category only. Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 19 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

II. Raw Handset Data Table 7-3 Raw Data Results for CDMA Cellular Band Volume Axial Radial 6 1013 384 777 1013 384 777 564 ABM1, dBA/m -2.30 -1.95 -2.31 -12.77 -12.43 -13.37 -13.42 ABM2, dBA/m -43.35 -41.84 -42.73 -40.84 -38.98 -40.16 -39.23 Ambient Noise, dBA/m -62.43 -62.43 -62.43 -62.25 -62.25 -62.25 -62.25 Freq. Response Margin 1.66 1.59 1.58 N/A N/A N/A N/A (dB) Maximum S+N/N (dB) 41.05 39.89 40.42 28.07 26.55 26.79 25.81 S+N/N per orientation 39.89 25.81 (dB) PCS Band Volume Axial Radial 25 600 1175 25 600 1175 ABM1, dBA/m -2.16 -2.30 -2.26 -12.77 -13.47 -13.15 ABM2, dBA/m -41.64 -41.91 -42.35 -38.61 -39.26 -39.55 Ambient Noise, dBA/m -62.43 -62.43 -62.43 -62.25 -62.25 -62.25 Freq. Response Margin 1.46 1.55 1.56 N/A N/A N/A (dB) Maximum S+N/N (dB) 39.48 39.61 40.09 25.84 25.79 26.40 S+N/N per orientation 39.48 25.79 (dB) [x,y] from T-coil Coordinates (cm) bottom left 2.6, 2.6 2.6, 3.2 Notes: 1. Power Configuration: CDMA: Power Control Bits = "All Up" 2. Phone Condition: Mute on; Backlight on; Max Volume, Max Contrast 3. Vocoder Configuration: RC1/SO3 (CDMA - EVRC) 4. 'Radial' orientation refers to radial transverse. 5. Speech Signal: ITU-T P.50 Artificial Voice 6. Cell. CDMA ch. 564 is the Part 90S test channel. Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 20 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

III. Frequency Response Graph Figure 7-1 Axial Frequency Response Note: User T-coil Mode (SettingsCall Hearing aids) was set to ON for Frequency Response compliance. This frequency response represents the worst-case ABM2 test configuration according to Table 7-3. IV. 1 kHz Vocoder Application Check 1kHz Tone Pass-through Check 20 10 0 Field Intensity (dBA/m) -10 -20 -30 -40 -50 -60 -70 -60 -50 -40 -30 -20 -10 0 10 1kHz input level (dBm0) This model was verified to be within the linear region for ABM1 measurements at -18 dBm0 for CDMA. This measurement was taken in the axial configuration above the maximum location. V. Undesirable Audio Magnetic Band Plot (ABM2) Figure 7-2 Worst-case ABM2 Plot for WD Note: This plot represents the data from the location/configuration resulting in the highest ABM2 result shown in Table 7-3. Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 21 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

VI. T-Coil Validation Test Results Figure 7-3 Helmholtz Coil Validation for Frequency Response Table 7-4 Helmholtz Coil Validation Table of Results Item Target Result Verdict Signal Validation Frequency Response, from limits 0 ± 0.5 dB 0.30 PASS Magnetic Intensity, -10 dBA/m -10 ± 0.5 dB -9.763 PASS Noise Validation Axial Environmental Noise < - 58 dBA/m -62.43 PASS Radial Environmental Noise < - 58 dBA/m -62.25 PASS Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 22 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

8. MEASUREMENT UNCERTAINTY Table 8-1 Uncertainty Estimation Table Standard Data +/- Data +/- Probability Standard Contribution Data Type Divisor Uncertainty % dB distribution uncertainty (dB) ABM Noise 7.0% 0.29 Std. Dev. Normal k=1 1.00 7.0% RF Reflections 4.7% 0.20 Specification Rectangular 1.73 2.7% Reference Signal Level 12.2% 0.50 Specification Rectangular 1.73 7.0% Positioning Accuracy 10.0% 0.41 Uncertainty Rectangular 1.73 5.8% Probe Coil Sensitivity 12.2% 0.50 Specification Rectangular 1.73 7.0% Probe Linearity 2.4% 0.10 Std. Dev. Normal k=1 1.00 2.4% Cable Loss 2.8% 0.12 Specification Rectangular 1.73 1.6% Frequency Analyzer 5.0% 0.21 Specification Rectangular 1.73 2.9% System Repeatability 5.0% 0.21 Std. Dev. Normal k=1 1.00 5.0% WD Repeatability 9.0% 0.37 Std. Dev. Normal k=1 1.00 9.0% Positioner Accuracy 1.0% 0.04 Specification Rectangular 1.73 0.6% Combined standard uncertainty, uc (k=1) 17.7% 0.71 Expanded uncertainty (k=2), 95% confidence level 35.3% 1.31 Notes: 1. Test equipments are calibrated according to techniques outlined in NIS81, NIS3003 and NIST Tech Note 1297. 2. All equipments have traceability according to NIST. Measurement Uncertainties are defined in further detail in NIS 81 and NIST Tech Note 1297 and UKAS M3003. Measurement uncertainty reflects the quality and accuracy of a measured result as compared to the true value. Such statements are generally required when stating results of measurements so that it is clear to the intended audience that the results may differ when reproduced by different facilities. Measurement results vary due to the measurement uncertainty of the instrumentation, measurement technique, and test engineer. Most uncertainties are calculated using the tolerances of the instrumentation used in the measurement, the measurement setup variability, and the technique used in performing the test. While not generally included, the variability of the equipment under test also figures into the overall measurement uncertainty. Another component of the overall uncertainty is based on the variability of repeated measurements (so-called Type A uncertainty). This may mean that the Hearing Aid compatibility tests may have to be repeated by taking down the test setup and resetting it up so that there are a statistically significant number of repeat measurements to identify the measurement uncertainty. By combining the repeat measurement results with that of the instrumentation chain using the technique contained in NIS 81 and NIS 3003, the overall measurement uncertainty was estimated. Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 23 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

9. EQUIPMENT LIST Table 9-1 Equipment List Manufacturer Model Description Cal Date Cal Interval Cal Due Serial Number Control Company 36934‐158 Wall‐Mounted Thermometer 4/29/2014 Biennial 4/29/2016 122014488 Listen SoundConnect Microphone Power Supply 2/17/2014 Annual 2/17/2015 0899‐PS150 Listen SoundCheck Acoustic Analyzer System 10/11/2013 Annual 10/11/2014 04‐06‐5876‐SC2850 NI 4474 Data Acquisition Card N/A N/A N/A Rohde & Schwarz CMU200 Base Station Simulator 4/24/2014 Annual 4/24/2015 836371/0079 Seekonk NC‐100 Torque Wrench (8" lb) 11/29/2011 Triennial 11/29/2014 21053 TEM Axial T‐Coil Probe Axial T‐Coil Probe 2/17/2014 Annual 2/17/2015 TEM‐1123 TEM Radial T‐Coil Probe Radial T‐Coil Probe 2/17/2014 Annual 2/17/2015 TEM‐1129 TEM Helmholtz Coil Helmholtz Coil 8/6/2013 Annual 8/6/2014 SBI 1052 TEM HAC System Controller with Software N/A N/A N/A TEM HAC Positioner N/A N/A N/A Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 24 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14


West Caldwell Calibration Laboratories Inc. Certificate of Calibration for Axial T Coil Probe Manufactured by: TEM CONSULTING Model No: Axial T Coil Probe Serial No: TEM—1123 Calibration Recall No: 23889 Submitted By: Customer: JUSTIN CHAO Company: PCTEST ENGINEERING LAB Address: 6660—B DOBBIN ROAD COLUMBIA MD 21045 The subject instrument was calibrated to the indicated specification using standards traceable to the National Institute of Standards and Tochnology or to accopted values of natural physical consfants. Nakinnal In tnta af Clandavda an nchnalogy ar to acconted values af natural nhvsteal ennetante This document certifies that the instrument met the following specification upon its return to the submitter, West Caldwell Calibration Laboratories Procedure No. Axial T Cof TEM Upon receipt for Calibration, the instrument was found to be: Within CX ) see attached Report of Calibration. the tolerance of the indicated specification. West Caldwell Calibration Laboratories‘ calibration control system meets the requirements, ISO 10012—1 MIL—STD—45662A, ANSUNCSEZ540—1, IEC Guide 25, ISO 9001:2008 and ISO 17025. favou 2f 22h4 Note: With this Certificate, Report of Calibration is included. Approved by: Calibration Date: 17—Feb—14 EZ Certificate No: 23889 —! Felix Christopher (QA Mgr.) GA Dos, #1051 Rev. 2.0 10M/01 Certificate Page 1 of 1 ISOAEC 17025f2005 West Caldwell @ Calibration 2 AccrEpttED Calibration Lab. Cert. # 1533.01

HCATEMC_TEM—1123_Feb—17—2014 ISO/EC 17025; 2005 West Caldwell Calibration uncompromised calibration Laboratories, Inc. 1575 State Route 96, Victor NY 14564 Callbration Lab. Gert. # 1533.01 REPORT OF CALIBRATION TEM Consulting LP Axial T Coil Probe Model No.: Axial T Coil Probe Serial No.: TEM—1123 Company : PCTEST Engineering Lab. L. D. No: 80582 Calibration results: Before data: ......... After data:i ......... Probe Sensitivity measured with Helmholtz Coil Helmholtz Coil; . Before & after data same: ... X...... the number of turns on each coil; 10 No. the radius of cach coil, in meters; 0.204 m Laboratory Environment: the current in the coils, in amperes.; 0.09 A Ambient Temperature: 21.2 °C Helmholtz Coil Constant; 7.09 Alm/V Ambient Humidity: 29.1 % RH Helmholtz Coll magnetic field; 5.98 Aim Ambient Pressure: 100.7 kPa Calibration Date: 17—Feb—14 Probe Sensitivity at 1000 Hz. Re—calibration Due: 17—Feb—15 was 60.20 dBV/A/im Report Number: 23889 1 0.977 mV/A/im Control Number: 23889 Probe resistance 894 Ohms The above listed instrument meets or exceeds the tested manufacturer‘s specifications. ‘This Calibration is traceable through NiST test numbers: 287708 The expanded uncertainty of calbration: 0.30dB at 95% confidence level with a coverage factor of k=2. Graph represents Probes Frequency Response. Axial Probe Response —&—Measured Probe.. 20 15 10 Magnitude (dB) LJ o 100 Freq. (Hz) 1000 10000 The above listed instrument was checked using calibration procedure documented in West Caldwell Calibration Laboratories Inc. procedure : Rev. 7.0 Jan. 24, 2014 Doc. # 1038 HCATEMC Calibration was performed by West Caldwell Calibration Laboratories Inc. under Operating Procedures intended to implement the requirements of 1S010012—1, IEC Guide 25, ANSU/NCSL 2540—1, (MIL—STD—45662A) and ISO 9001:2008, ISO 17025 C Cal. Date: 17—Feb—2014 Measurements performed by: .......... Calibrated on WCCL system type 9700 Felix Christopher This document shall not be reproduced, except in full, without the written approval from West Caldwell Cal, Labs, Inc. Rev. 7.0 Jan. 24, 2014 Doc. # 1038 HCATEMC Page 1 of 2 £) RCTEST . . @ LG

HCATEMC_TEM—1123_Feb—17—2014 West Caldwell Calibration Laboratories Inc. 1575 State Route 96, Victor NY 14564 Tel. (585) 586—3900 FAX (585) 586—4327 Calibration Data Record for TEM Consulting LP Axial T Coil Probe Model No.: Axial T Coil Probe Serial No.: TEM—1123 Company : PCTEST Engineering Lab. Test Function Tolerance Measured values Before Out Remarks 1.0 Probe Sensitivity at 1000 Hz. dBV/A/m —60.20 dB 2.0 Probe Level Linearity 6 6.03 Ref. (0 dB) 0 0.00 —6 —6.02 12 ~12.05 Hz 3.0 Probe Frequency Response 100 ~19.9 126 ~17.9 158 ~16.0 200 ~13.9 251 ~12.0 316 ~10.0 398 —8.0 501 —6.0 631 ~4.0 794 —2.0 Ref. (0 dB) 1000 0.0 1259 2.0 1585 4.0 1995 6.0 2512 7.9 3162 9.9 3981 11.9 5012 13.9 6310 15.9 7943 18.0 10000 20.2 Instruments used for calibration: Date of Cal. Traceablity No. Due Date HP 34401A S/N 36064102 8—0ct—2013 ;287708 8—Oct—2014 HP 34401A S/N 36102471 8—0ct—2013 ;287708 8—Oct—2014 HP 33120A S/N 36043716 8—0ct—2013 ;287708 8—0ct—2014 Briie! & KJaer 2133 S/N 1583254 6—Jan—2014 683/284413—14 7—Jan—2015 Cal. Date: 17—Feb—2014 Tested by: Felix Christopher Callbrated on WCCL system type 9700 This document shall not be reproduced, except In full, without the witten approval from West Caldwell Gal. Labs, Inc. Rev. 7.0 Jan. 24, 2014 Doc. # 1038 HCATEMC Page 2 of 2 4) RCTEST

West Caldwell Calibration Laboratories Inc. Certificate of Calibration for Radial T Coil Probe Manufactured by: TEM CONSULTING Model No: Radial T Coil Probe Serial No: TEM—1129 Calibration Recall No: 23889 Submitted By: Customer: JUSTIN CHAO Company: PCTEST ENGINEERING LAB Address: 6660—B DOBBIN ROAD COLUMBIA MD 21045 The subject instrument was calibrated to the indicated specification using standards traceable to the National Institute of Standards and Technologyor to accepted values of natural physical constants. This document certifies that the instrument met the following specification upon its return to the submitter. West Caldwell Calibration Laboratories Procedure No. Radial T C TEM Upon receipt for Calibration, the instrument was found to be: Within (X ) see attached Report of Calibration. the tolerance of the indicated specification. West Caldwell Calibration Laboratories‘ calibration control system meets the requirements, ISO 10012—1 MIL—STD—45662A, ANSU/NCSL Z540—1, IEC Guide 25, ISO 9001:2008 and ISO 17025. SC 2]f22[ Note: With this Certificate, Report of Calibration is included. Approved by: Calibration Date: 17—Feb—14 Certificate No: 23889 —2 Felix Christopher (QA Mgr.) OA Doe. #1051 Rev. 2.0 10/1/01 Certificate Page 1 of 1 ISOAEC 170?5;2005 \West Galdwell Afalibration uncompromised calibration Laboratories, Inc. 1575 State R Vi N SA KA4 %DS 82 £) RCTEST . . @ LG

HCRTEMC_TEM—1129_Feb—17—2014 ISO/EC 17025: 2005 West Caldwell Calibration { j uncompromised calibration Laboratories, Inc. {AccaEBirEp) 1575 State Route 96, Victor NY 14564 Calibration Lab. Gert, # 1833.01 REPORT OF CALIBRATION for TEM Consulting LP Radial T Coil Probe Model No.: Radial T Coil Probe Serial No.: TEM—1129 Company : PCTEST Engineering Lab. 1. D. No: 80583 Calibration results: Before datai ......... After data: ......... Probe Sensitivity measured with Helmholtz Coil Helmholtz Coll; Before & after data same: ... X...... the numberof turns on each coil; 10 No. the radius of each coil, in meters; 0.204 m Laboratory Environment: the current in the coils, in amperes.; 0.09 A Ambient Temperature: 21.2 °C Helmholtz Coil Constant; 7.09 AlmiV Ambient Humidity: 29.1 % RH Helmholtz Coil magnétic field; 5.98 Aim Ambient Pressure: 100.7 kPa Calibration Date: 17—Feb—14 Probe Sensitivity at 1000 Hz. Re—calibration Due: 17—Feb—15 was —60.38 dBV/A/m Report Number: 23889 =2 0.957 mV/A/m Control Number: 23889 Probe resistance 900 Ohms The above listed instrument meets or exceeds the tested manufacturer‘s specifications. This Cailbration is traceable through NIST test numbers: 287708 ‘The expanded uncertainty of calibration: 0.304B at 95% confidence level with a coverage factor of k=2. Graph represents Probes Frequency Response. Radial Probe Response —&— Measured Probe Resp. 20 Magnitude (dB) o 100 Freq. (Hz) 1000 10000 The above listed instrument was checked using calibration procedure documented in West Caldwell Calibration Laboratories Inc. procedure : Rev. 7.0 Jan. 24, 2014 Doc. # 1038 HCRTEMC i Calibration was performed by West Caldwell Calibration Laboratories Inc.under Operating Procedures intended to implement the requirements of 1S010012—1, IEC Guide 25, ANSHNCSL Z540—1, (MIL—STD—45662A) and ISO 9001:2008, ISO 17025 Cal. Date: 17—Feb—2014 Measurements performed by: Calibrated on WCCL system type 9700 Felix Christopher This document shall not be reproduced, excopt in full, withoutthe written approval from West Caldwell Cal. Labs. Inc. Rev. 7.0 Jan. 24, 2014 Doc. # 1038 HCRTEMG Page 1 of 2 4) RCTEST

HCRTEMC_TEM—1129_Feb—17—2014 West Caldwell Calibration Laboratories Inc. 1575 State Route 96, Victor NY 14564 Tel. (585) 586—3900 FAX (585) 586—4327 Calibration Data Record for TEM Consulting LP Radial T Coil Probe Model No.: Radial T Coil Probe Serial No.: TEM—1129 Company : PCTEST Engineering Lab. Test Function Tolerance Measured values Before Out Remarks 1.0 Probe Sensitivity at 1000 Hz. dBV/A/im 60.38 dB 2.0 Probe Level Linearity 6 6.04 Ref. (0 dB) 0 0.00 —6 —6.03 12 ~12.05 Hz 3.0 Probe Frequency Response 100 ~19.9 126 ~17.9 158 ~15.9 200 13.9 251 ~12.0 316 _ ~10.0 398 —8.0 501 »6.0 631 —4.0 794 —2.0 Ref. (0 dB) 1000 0.0 1259 2.0 1585 4.0 1995 6.0 2512 T.9 3162 9.9 3981 11.9 5012 13.9 6310 16.0 7943 18.0 10000 20.2 Instruments used for calibration: Date of Cal. Traceability No. Due Date HP 34401A S/N 36064102 8—0ct—2013 ,287708 8—Oct—2014 HP 34401A S/N 36102471 8—O0ct—2013 287708 8—0ct—2014 HP 33120A S/N 36043716 8—Oct—2013 ;287708 8—Oct—2014 Brie! & KJeer 2133 S/N 1583254 6—Jan—2014 683/7284413—14 T—Jan—2015 Cal. Date: 17—Feb—2014 Tested by: Felix Christopher Calibrated on WCCL system type 9700 This document shall not be reproduced, except In full, without the written approval from West Galdwall Cal. Labs, Inc. Rev. 7.0 Jan, 24, 2014 Doc, # 1038 HCRTEMC Page 2 of 2 4) RCTEST

11. CONCLUSION The measurements indicate that the wireless communications device complies with the HAC limits specified in accordance with the ANSI C63.19 Standard and FCC WT Docket No. 01-309 RM-8658. Precise laboratory measures were taken to assure repeatability of the tests. The tested device complies with the requirements in respect to all parameters specific to the test. The test results and statements relate only to the item(s) tested. The measurement system and techniques presented in this evaluation are proposed in the ANSI standard as a means of best approximating wireless device compatibility with a hearing-aid. The literature is under continual re-construction. Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 32 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

12. REFERENCES 1. ANSI C63.19-2011, American National Standard for Methods of Measurement of Compatibility between Wireless communication devices and Hearing Aids.”, New York, NY, IEEE, May 2011 2. FCC Office of Engineering and Technology KDB, “285076 D01 HAC Guidance v04,” October 31, 2013 3. FCC Office of Engineering and Technology KDB, “285076 D02 T-Coil Testing for CMRS IP v01r01,” October 31, 2013 4. FCC Public Notice DA 06-1215, Wireless Telecommunications Bureau and Office of Engineering and Technology Clarify Use of Revised Wireless Phone Hearing Aid Compatibility Standard, June 6, 2006 5. FCC 3G Review Guidance, Laboratory Division OET FCC, May/June 2006 6. Berger, H. S., “Compatibility Between Hearing Aids and Wireless Devices,” Electronic Industries Forum, Boston, MA, May, 1997 7. Berger, H. S., “Hearing Aid and Cellular Phone Compatibility: Working Toward Solutions,” Wireless Telephones and Hearing Aids: New Challenges for Audiology, Gallaudet University, Washington, D.C., May, 1997 (To be reprinted in the American Journal of Audiology). 8. Berger, H. S., “Hearing Aid Compatibility with Wireless Communications Devices, “ IEEE International Symposium on Electromagnetic Compatibility, Austin, TX, August, 1997. 9. Bronaugh, E. L., “Simplifying EMI Immunity (Susceptibility) Tests in TEM Cells,” in the 1990 IEEE International Symposium on Electromagnetic Compatibility Symposium Record, Washington, D.C., August 1990, pp. 488-491 10. Byme, D. and Dillon, H., The National Acoustics Laboratory (NAL) New Procedure for Selecting the Gain and Frequency Response of a Hearing Aid, Ear and Hearing 7:257-265, 1986. 11. Crawford, M. L., “Measurement of Electromagnetic Radiation from Electronic Equipment using TEM Transmission Cells, “ U.S. Department of Commerce, National Bureau of Standards, NBSIR 73-306, Feb. 1973. 12. Crawford, M. L., and Workman, J. L., “Using a TEM Cell for EMC Measurements of Electronic Equipment,” U.S. Department of Commerce, National Bureau of Standards. Technical Note 1013, July 1981. 13. EHIMA GSM Project, Development phase, Project Report (1st part) Revision A. Technical- Audiological Laboratory and Telecom Denmark, October 1993. 14. EHIMA GSM Project, Development phase, Part II Project Report. Technical-Audiological Laboratory and Telecom Denmark, June 1994. 15. EHIMA GSM Project Final Report, Hearing Aids and GSM Mobile Telephones: Interference Problems, Methods of Measurement and Levels of Immunity. Technical-Audiological Laboratory and Telecom Denmark, 1995. Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 33 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14

16. HAMPIS Report, Comparison of Mobile phone electromagnetic near field with an upscaled electromagnetic far field, using hearing aid as reference, 21 October 1999. 17. Hearing Aids/GSM, Report from OTWIDAM, Technical-Audiological Laboratory and Telecom Denmark, April 1993. 18. IEEE 100, The Authoritative Dictionary of IEEE Standards Terms, Seventh Edition. 19. Joyner, K. H, et. al., Interference to Hearing Aids by the New Digital Mobile Telephone System, Global System for Mobile (GSM) Communication Standard, National Acoustic Laboratory, Australian Hearing Series, Sydney 1993. 20. Joyner, K. H., et. al., Interference to Hearing Aids by the Digital Mobile Telephone System, Global System for Mobile Communications (GSM), NAL Report #131, National Acoustic Laboratory, Australian Hearing Series, Sydney, 1995. 21. Kecker, W. T., Crawford, M. L., and Wilson, W. A., “Contruction of a Transverse Electromagnetic Cell”, U.S. Department of Commerce, National Bureau of Standards, Technical Note 1011, Nov. 1978. 22. Konigstein, D., and Hansen, D., “A New Family of TEM Cells with enlarged bandwidth and Optimized working Volume,” in the Proceedings of the 7th International Symposium on EMC, Zurich, Switzerland, March 1987; 50:9, pp. 127-132. 23. Kuk, F., and Hjorstgaard, N. K., “Factors affecting interference from digital cellular telephones,” Hearing Journal, 1997; 50:9, pp 32-34. 24. Ma, M. A., and Kanda, M., ”Electromagnetic Compatibility and Interference Metrology,” U.S. Department of Commerce, National Bureau of Standards, Technical Note 1099, July 1986, pp. 17-43. 25. Ma, M. A., Sreenivashiah, I. , and Chang, D. C., “A Method of Determining the Emission and Susceptibility Levels of Electrically Small Objects Using a TEM Cell,” U.S. Department of Commerce, National Bureau of Standards, Technial Note 1040, July 1981. 26. McCandless, G. A., and Lyregaard, P. E., Prescription of Gain/Output (POGO) for Hearing Aids, Hearing Instruments 1:16-21, 1983 27. Skopec, M., “Hearing Aid Electromagnetic Interference from Digital Wireless Telephones, “IEEE Transactions on Rehabilitation Engineering, vol. 6, no. 2, pp. 235-239, June 1998. 28. Technical Report, GSM 05.90, GSM EMC Considerations, European Telecommunications Standards Institute, January 1993. 29. Victorian, T. A., “Digital Cellular Telephone Interference and Hearing Aid Compatibility—an Update,” Hearing Journal 1998; 51:10, pp. 53-60 30. Wong, G. S. K., and Embleton, T. F. W., eds., AIP Handbook of Condenser Microphones: Theory, Calibration and Measurements, AIP Press. Reviewed by: FCC ID:ZNFLS885 HAC (T-COIL) TEST REPORT Quality Manager Filename: Test Dates: EUT Type: Page 34 of 37 0Y1406091182.ZNF 6/9/2014 Portable Handset © 2014 PCTEST Engineering Laboratory, Inc. REV 3.0.M 03/24/14


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