BLU Products, Inc. BLUC5LMX175 YHLBLUC5LMX175 YHLBLUC5LMX175 bluc5lmx175
BLU Products, Inc. BLUC5LMX175 Smart Phone with GSM, WCDMA, LTE, WiFi and Bluetooth YHLBLUC5LMX175 YHLBLUC5LMX175 bluc5lmx175
REPORT No.SZ23040024S03 Hearing Aid Compatibility (HAC) T-Coil Test Report APPLICANT : BLU Products, Inc. PRODUCT NAME : Smart Phone MODEL NAME : C5L MAX BRAND NAME : BLU FCC ID STANDARD(S) RECEIPT DATE : YHLBLUC5LMX175 : FCC 47 CFR Part 20(20.19) ANSI C63.19-2011 : 2023-04-03 TEST DATE : 2023-04-25 to 2023-05-17 ISSUE DATE : 2023-06-09 Edited by: Xie Yiyun (Rapporteur) Approved by: Shen Junsheng (Supervisor) NOTE: This document is issued by Shenzhen Morlab Communications Technology Co., Ltd., the test report shall not be reproduced except in full without prior written permission of the company. The test results apply only to the particular sample(s) tested and to the specific tests carried out which is available on request for validation and information confirmed at our website. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 1 of 26 REPORT No.SZ23040024S03 DIRECTORY 1. Attestation of Testing Summary4 2. Technical Information 5 2.1. Applicant and Manufacturer Information 5 2.2. Equipment under Test (EUT) Description5 2.3. Photographs of the EUT 7 2.4. Applied Reference Documents 7 3. Air Interface and Operating Mode 8 4. Measurement standards for T-Coil9 4.1. T-Coil Signal Quality Categories 9 4.2. Frequency Response 9 5. HAC (T-Coil) Measurement System11 5.1. T-Coil Measurement Setup 11 5.2. System Validation 12 5.3. Base Station Gain Factor13 6. T-Coil Measurement Procedure 15 6.1. General Guidance 15 6.2. T-Coil Test Flow17 6.3. Information of EUT Test Position 18 7. Test Equipment List 19 8. T-Coil Testing for CMRS Voice20 8.1. Test Guidance 20 8.2. Test Results 20 9. T-Coil Testing for CMRS IP Voice 22 9.1. T-Coil Testing for VoLTE 22 9.2. T-Coil Testing for VoWi-Fi 24 10. Uncertainty Assessment 25 MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 2 of 26 REPORT No.SZ23040024S03 Annex A General Information26 Annex B Test Setup Photos Annex C Plots of T-Coil Test Results Annex D DASY Calibration Certificate Version 1.0 Date 2023-06-09 Change History Reason for Change First edition MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 3 of 26 REPORT No.SZ23040024S03 1. Attestation of Testing Summary Air Interface Frequency Band T-Rating Frequency Response Magnetic Intensity GSM CMRS Voice GSM850 GSM1900 T3 T4 PASS PASS PASS PASS Band II T4 PASS PASS UMTS CMRS Voice Band IV T4 PASS PASS Band V T4 PASS PASS Band 2 T4 PASS PASS Band 4 T4 PASS PASS Band 5 T4 PASS PASS VoLTE Band 7 T4 PASS PASS Band 12 T4 PASS PASS Band 17 T4 PASS PASS Band 66 T4 PASS PASS VoWi-Fi 2.4GHz T4 PASS PASS HAC Rate Category: T3 Note 1. It is compliance with HAC limits for this device that specified in FCC 47 CFR Part 20(20.19) and ANSI C63.19. 2. When the test result is a critical value, we will use the measurement uncertainty give the judgment result based on the 95% confidence intervals. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 4 of 26 2. Technical Information REPORT No.SZ23040024S03 Note: Provide by applicant. 2.1. Applicant and Manufacturer Information Applicant: Applicant Address: Manufacturer: Manufacturer Address: BLU Products, Inc. 8600 NW 36th Street, Suite #200 Doral, FL 33166, USA BLU Products, Inc. 8600 NW 36th Street, Suite #200 Doral, FL 33166, USA 2.2. Equipment under Test (EUT) Description Product Name: EUT IMEI: Hardware Version: Software Version: Frequency Bands: Modulation Mode: Smart Phone 867696067169075 A507-MB-V3.6D A507-37H_sp9832e_1h10_go2g-userdebug-native_0307_1443 GSM 850: 824 MHz ~ 849 MHz GSM 1900: 1850 MHz ~ 1910 MHz WCDMA Band II: 1850 MHz ~ 1910 MHz WCDMA Band IV: 1710 MHz ~ 1755 MHz WCDMA Band V: 824 MHz ~ 849 MHz LTE Band 2: 1850 MHz ~ 1910 MHz LTE Band 4: 1710 MHz ~ 1755 MHz LTE Band 5: 824 MHz ~ 849 MHz LTE Band 7: 2500 MHz ~ 2570 MHz LTE Band 12: 699 MHz ~ 716 MHz LTE Band 17: 704 MHz ~ 716 MHz LTE Band 66: 1710 MHz ~ 1780 MHz LTE Band 71: 663 MHz ~ 698 MHz WLAN 2.4GHz: 2412 MHz ~ 2472 MHz Bluetooth: 2402 MHz ~ 2480 MHz GSM/GPRS: GMSK EDGE: 8PSK WCDMA: QPSK, 16QAM LTE: QPSK, 16QAM 802.11b: DSSS 802.11g/n-HT20: OFDM BR+EDR: GFSK(1Mbps), /4-DQPSK(2Mbps), 8-DPSK(3Mbps) Bluetooth LE: GFSK MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 5 of 26 REPORT No.SZ23040024S03 VoLTE Mode: Support VoWi-Fi Mode: Support SIM Cards Description: SIM 1 GSM+WCDMA+LTE SIM 2 GSM+WCDMA+LTE Note: For more detailed description, please refer to specification or user manual supplied by the applicant and/or manufacturer. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 6 of 26 2.3. Photographs of the EUT REPORT No.SZ23040024S03 Please refer to the External Photos for the Photos of the EUT 2.4. Applied Reference Documents Leading reference documents for testing: No. Identity Document Title Method determination Remark 1 FCC 47 CFR Part 20(20.19) Hearing aid-compatible mobile handsets. No deviation American National Standard Methods 2 ANSI C63.19-2011 of Measurement of Compatibility between Wireless Communications No deviation Devices and Hearing Aids 3 KDB 285076 D01v06r03 HAC Guidance No deviation 4 KDB 285076 D02v04 T-Coil testing for CMRS IP No deviation 5 KDB 285076 D03V01r06 HAC FAQ No deviation Note 1: Additions to, deviation, or exclusions from the method shall be judged in the "method determination" column of add, deviate or exclude from the specific method shall be explained in the "Remark" of the above table. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 7 of 26 REPORT No.SZ23040024S03 3. Air Interface and Operating Mode Air Interface GSM Band GSM850 GSM1900 Transport Type VO Simultaneous Transmitter Wi-Fi & BT Name of Voice Service CMRS Voice Power Reduction No No WCDMA (UMTS) Band II Band IV Band V No VO Wi-Fi & BT CMRS Voice No No Band 2 No Band 4 No Band 5 No LTE Band 7 Band 12 VD Wi-Fi & BT VoLTE No No Band 17 No Band 66 No Band 71 No Wi-Fi 2450 VD GSM,UMTS, LTE Wi-Fi Calling No BT 2450 DT GSM,UMTS, LTE N/A No Where: VO=Voice Only DT=Digital Transport only VD=CMRS and IP Voice Service over Digital Transport BT=Bluetooth * Ref Lev in accordance with 7.4.2.1 of ANSI C63.19-2011 and the July 2012 VoLTE interpretation ** Ref Lev -20 dBm0 *** Ref Lev XYNet established by KDB Inquiry NNNNNN @ -16 dBm0 Note: 1) Air Interface/Band MHz: List of all air interfaces and bands supported by the handset. 2) Type: For each air interface, indicate the type of voice transport mode: i. VO = legacy Cellular Voice Service, from Table 7.1 in 7.4.2.1 of ANSI C63.19-2011; ii. DT = Digital Transport only (no voice); and iii. VD = IP Voice Service over Digital Transport. 3) Simultaneous Transmitter: Indicate any air interface/bands that operate in simultaneous or concurrent service transmission mode. 4) Name of Voice Service: See Q4 in 285076 D03 HAC FAQ for further clarification. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 8 of 26 REPORT No.SZ23040024S03 a) Ref Lev in accordance with 7.4.2.1 of ANSI C63.19-2011 and the July 2012 VoLTE interpretation b) ** Ref Lev -20 dBm0 c) *** Ref Lev XY Net established by KDB Inquiry NNNNNN @ -16 dBm0 5) LTE-FDD Band 71: The frequency range of LTE-FDD Band 71 is out of ANSI C63.19-2011, therefore T-Coil for VoLTE of LTE Band 71 is not testing required. 4. Measurement standards for T-Coil 4.1. T-Coil Signal Quality Categories This sub clause specifies the signal-to-noise quality requirement for the intended T-Coil signal from a WD. The worst signal to noise of the two T-Coil signal measurements, as determined in Clause 7, shall be used to determine the T-Coil mode category per Table 2.1. 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. So, the only criterion that can be measured is the RF immunity in T-Coil mode. The RF measurements made for the T-Coil evaluation are used to assign the category T1 through T4. The limitation is given in Table 1. This establishes the RF environment presented by the WD to a hearing aid. Category Telephone parameters WD signal quality [(signal + noise)-to-noise ratio in decibels] Category T1 0 dB to 10 dB Category T2 10 dB to 20 dB Category T3 20 dB to 30 dB Category T4 >30 dB Table 4.1 T-Coil signal-to-noise categories 4.2. Frequency Response This sub clause describes the relationship between the M rating, which is based on the RF emission tests performed in Clause 5, and the T rating, which is based on the T-Coil tests performed in Clause 7. If the WD achieves an acceptable category rating per ANSI C63.19-2011 section 8.2, as determined by the appropriate regulating authority, it becomes a candidate for the T designation (see ANSI C63.19-2011 section 8.3.4). The frequency response of the perpendicular component of the magnetic field, measured in 1/3 octave bands, shall follow the response curve specified in this sub-clause, over the frequency range 300 Hz to 3000 Hz. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 9 of 26 REPORT No.SZ23040024S03 Fig 4.1 Magnetic field frequency response for WDs with field strength 15 dB (A/m) at 1 kHz Fig 4.2 Magnetic field frequency response for WDs with a field that exceeds 15 dB(A/m) at 1 kHz MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 10 of 26 REPORT No.SZ23040024S03 5. HAC (T-Coil) Measurement System 5.1. T-Coil Measurement Setup Fig 5.1 SPEAG T-Coil System Configurations Note: 1 Per C63 & KDB 285076 D02v03, define the all applicable input audio level: 1) GSM input level: -16dBm0 2) UMTS input level: -16dBm0 3) VoLTE input level: -16dBm0 4) VoWiFi input level: -20dBm0 5) OTT Voip input level: -20dBm0 2 A communication base station CMU200 is used for testing GSM / UMTS / CDMA, and it's "Decode Cal" and "Codec Cal" with audio option B52 and B85 to set the correct audio input level. 3 CMU200 is able to output 1KHz audio signal equivalent to 3.14dBm0 at "Decode Cal", the signal reference is used to adjust the AMMI gain setting to reach -16dBm0 for GSM/UMTS and -18dBm0 for CDMA. 4 The callbox of CMW500 is used for VoLTE over IMS and VoWiFi over IMS T-Coil measurement, the data application unit of the CMW500 was used to simulate the IP multimedia subsystem server. And the CMW500 can be manually configured to ensure and control the speech input level result is -16dBm0 for VoLTE and -20dBm0 for VoWiFi when the device during the IMS connection. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 11 of 26 5.2. System Validation REPORT No.SZ23040024S03 For correct and calibrated measurement of the voltages and ABM filed, DASY will perform a calibration job follows below: 1. In phase 1, the audio output is switched off, and a 200 mW symmetric rectangular signal of 1 kHz is connected directly to both channels of the sampling unit(Coil in, Probe in). 2. In phase 2, the audio output is off, and a 20 mW symmetric 100 Hz signal is internally connected. The signals during phases 1 and 2 are available at the output on the rear panel of the AMMI. However, the output must not be loaded, in order to avoid influencing the calibration, an RMS voltmeter would indicate 100mWRMS, during the second phase after the first two phases, the two input channels are both calibrated for absolute ants of voltages. The resulting factors are displayed above the multi-meter window. 3. After phases 1 and 2, the input channels are calibrated to measure exact voltages. This is required to use the inputs for measuring voltages with their peak and RMS value. 4. In phase 3, a mulit-sine signal covering each third-octave band from 50 Hz to 10 kHz is generated and applied to both audio outputs. The probe should be positioned in the center of the AMCC and aligned in the z-direction, the filed orientation of the AMCC. The "Coil In" channel is measuring the voltage over the AMCC internal shunt, which is proportional to the magnetic filed in the AMCC. At the same time, the "Probe In" channel samples the amplified signal picked up by the probe coil and provides a numerical integrator. The radio of two voltages in each third-octave filter leads to the spectral representation over the frequency band of interest. The coil signal is scaled in dBV, and the probe signal is first integrated and normalized to show dB A/m. The radio probe-to-coil at the frequency of 1KHz is the sensitivity which will be used in the consecutive T-coil jobs,. 5. The ABM validation during testing as below. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 12 of 26 5.3. Base Station Gain Factor REPORT No.SZ23040024S03 1. The Required gain factor for the specific signal shall typically be multiplied by this factor to achieve approx. the same level as for the 1kHz sine signal. 2. The calculation formula as below showing how to determine the input level for air interface for this device. CMU200 for GSM WCDMA <Input level determination > Gain Value 20* log(gain) AMCC Coil in (linear) dB (dBv RMS) - - -2.44 10 20 -20.96 9.31 19.38 -21.58 <Base station gain factor calculation> Signal Type Duration (s) 1kHz sine - 48k_voice_1kHz 1 48k_voice_300-3000 2 Peak to RMS (dB) 3 16.2 21.6 RMS (dB) 0 -12.7 -18.6 Level dBm0 3.14 -15.38 -16 Gain Factor Gain Setting 1 8.17 4.33 40.32 8.48 78.96 MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 13 of 26 <Input level determination> Gain Value dBm REPORT No.SZ23040024S03 CMW500 for VoLTE Full scal Voltage dB AMMI audio out (dBv) AMCC Coil Out (RMS) (dBv) (RMS) N/A 3.14 1.5 N/A 0.51 100 5.61 N/A 40 2.98 8.31 -16 N/A 18.39 N/A N/A 3.13 -18.48 <Base station gain factor calculation> Signal Type Duration (s) 48k_voice_1kHz 1 48k_voice_300-3000 2 Peak to RMS (dB) 16.2 21.6 RMS (dB) -12.7 -18.6 Gain Factor Gain Setting 4.33 35.98 8.48 70.46 MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 14 of 26 REPORT No.SZ23040024S03 6. T-Coil Measurement Procedure 6.1. General Guidance T-Coil measurement follows ANSI C63.19-2011, Section 7.4 This section describes the procedures used to measure the ABM (T-Coil) performance of the WD. In addition to measuring the absolute signal levels, the A-weighted magnitude of the unintended signal shall also be determined. To assure that the required signal quality is measured, the measurement of the intended signal and the measurement of the unintended signal must be made at the same location for each measurement position. In addition, the RF field strength at each measurement location must be at or below that required for the assigned category. Measurements shall not include undesired properties from the WD's RF field; therefore, use of a coaxial connection to a base station simulator or non-radiating load, there might still be RF leakage from the WD, which can interfere with the desired measurement. Pre-measurement checks should be made to avoid this possibility. All measurements shall be performed with the WD operating on battery power with an appropriate normal speech audio signal input level given in ANSI C63.19-2011 Table 7.1. If the device display can be turned off during a phone call, then that may be done during the measurement as well. Measurement shall be performed at two locations specified in ANSI C63.19-2011 A.3, with the correct probe orientation for a particular location, in a multistage sequence by first measuring the field intensity of the desired T-Coil signal the same location as the desired ABM or T-Coil signal (ABM1), and the ratio of desired to undesired magnetic components (ABM2) must be measured at the same location as the desired ABM or T-Coil signal (ABM1), and the ratio of desired to undesired ABM signals must be calculated. For the perpendicular field location, only the ABM1 frequency response shall be determined in a third measurement stage. The following steps summarize the basic test flow for determining ABM1 and ABM2. These steps assume that a sine wave or narrowband 1/3 octave signal can be used for the measurement of ABM1. 1) A validation of the test setup and instrumentation may be performed using a TMFS or Helmholtz coil Measure the emissions and confirm that they are within the specified tolerance. 2) Position the WD in the test setup and connect the WD RF connector to a base station simulator or a non-radiating load. Confirm that equipment that requires calibration has been calibrated, and that the noise level meets the requirements given in ANSI C63.19-2011 clause 7.3.1. 3) The drive level to the WD ise set such that the reference input level specified in ANSI C63.19-2011 Table 7.1 is input to the base station simulator (or manufacturer's test mode equivalent) in 1 kHz, 1/3 octave band. This drive level shall be used for the T-Coil signal test (ABM1) at f = 1 kHz. Either a sine wave at 1025 Hz or a voice-like signal, band-limited to the 1 kHz 1/3 octave, as defined in ANSI C63.19-2011 clause 7.4.2, shall be used for the reference audio signal. If interference is found at 1025 Hz an MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 15 of 26 REPORT No.SZ23040024S03 alternative nearby reference audio signal frequency may be used. The same drive level shall be used for the ABM1 frequency response measurements at each 1/3 octave band center frequency. The WD volume control may be set at any level up to maximum, provided that a signal at any frequency at maximum modulation would not result in clipping or signal overload. 4) Determine the magnetic measurement locations for the WD device (A.3), if not already specified by the manufacturer, as described in ANSI C63.19-2011 clause 7.4.4.1.1 and 7.4.4.2. 5) At each measurement location, measure and record the desired T-Coil magnetic signals (ABM1 at fi) as described in ANSI C63.19-2011 clause 7.4.4.2 in each individual ISO 266-1975 R10 standard 1/3 octave band. The desired audio band input frequency (fi) shall be centered in each 1/3 octave band maintaining the same drive level as determined in item c) and the reading taken for that band. Equivalent methods of determining the frequency response may also be employed, such as fast Fourier transform (FFT) analysis using noise excitation or input-output comparison using simulated speech. The full-band integrated probe output, as specified in D.9, may be used, as long as the appropriate calibration curve is applied to the measured result, so as to yield an accurate measurement of the field magnitude. (The resulting measurement shall be an accurate measurement in dB A/m.) 6) All Measurements of the desired signal shall be shown to be of the desired signal and not of an undesired signal. This may be shown by turning the desired signal ON and OFF with the probe measuring the same location. If the scanning method is used the scans shall show that all measurement points selected for the ABM1 measurement meet the ambient and test system noise criteria in ANSI C63.19-2011 clause 7.3.1. 7) At the measurement location for each orientation, measure and record the undesired broadband audio magnetic signal (ABM2) as specified in ANSI C63.19-2011 clause 7.4.4.4 with no audio signal applied (or digital zero applied, if appropriate) using A-weighting and the half-band integrator. Calculate the ratio of the desired to undesired signal strength (i,e., signal quality). Obtain the data from the postprocessor, SEMCAD, and determine the category that properly classifies the signal quality based on ANSI C63.19-2011 Table 8.5. MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 16 of 26 6.2. T-Coil Test Flow This section follows ANSI C63.19-2011 section 7.4.1: REPORT No.SZ23040024S03 Fig 6.1 WD T-Coil signal test flowchart MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 17 of 26 6.3. Information of EUT Test Position REPORT No.SZ23040024S03 Fig2.2 illustrates the measurement locations and reference plane to be used for the T-Coil measurements. And measurement setup follows: 1 The scan area is 5cm*5cm. 2 The area is centered on the audio frequency output transducer of the EUT. 3 The area is in a reference plane, which is defined as the planar area that contains the highest point in the area of the phone that normally rests against the user's ear. It's parallel to the centerline of the receiver area of the phone and is defined by the points of the receiver-end of the EUT handset, which in normal handset use, rests against the ear. 4 The measurement plane is parallel to, and 10mm in front of the reference plane. Fig 6.2 A typical EUT reference and plane for T-Coil measurement MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 18 of 26 7. Test Equipment List REPORT No.SZ23040024S03 Manufacturer SPEAG SPEAG SPEAG SPEAG SPEAG R&S Name of Equipment Audio Magnetic 1D Field Probe Audio Magnetic Calibration Coil Audio Measuring Instrument Audio Holder Data Acquisition Electronics Network Emulator Type/Model AM1DV3 AMCC AMMI N/A DAE4 CMW500 Serial No./ SW Version 3128 1044 1032 1094 480 165755 Calibration Last Cal. Due Date 2022.07.19 2023.07.18 NCR NCR NCR NCR NCR NCR 2022.06.22 2023.06.21 2023.02.09 2024.02.08 MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 19 of 26 REPORT No.SZ23040024S03 8. T-Coil Testing for CMRS Voice 8.1. Test Guidance 1. The middle channel of each frequency band is used for T-Coil testing according ANSI C63.19 2011. 2. For VoLTE radio configuration investigation is choose either one codec and an investigation was performed on all frequency band, data rates and modulations and RB configuration to determine the radio configuration to be used for testing, the following tests results which the worst case configuration would be remarked to be used for the testing for the handset. 3. According to KDB 285076, reporting results involves a two-step process: (1) Codec Investigation to determine the worst-case codec for each voice service, and (2) Air Interface Investigation. Using the worst-case codec for a voice service, a range of channels and bands shall be tested. 8.2. Test Results GSM Test Results Air Interface Mode Channel Probe Position ABM1 ABM2 dB (A/m) dB (A/m) Signal Quality (dB) GSM850 Axial (Z) 2.73 GSM Voice 189 Transversal (Y) -9.52 -33.77 -36.24 36.50 26.72 GSM1900 Axial (Z) 2.58 GSM Voice 661 Transversal (Y) -9.54 -38.27 -40.50 40.85 30.96 T Rating T4 T3 T4 T4 Frequency Response PASS PASS UMTS Test Results <Codec Investigation> Air Interface Modulation Channel Probe ABM1 ABM2 Position dB (A/m) dB (A/m) AMR 4.75Kbps 9400 Axial (Z) 4.53 WCDMA Band II AMR 7.95Kbps 9400 Axial (Z) 4.61 AMR 12.2Kbps 9400 Axial (Z) 4.73 Note: The highlight part of the worst codec would be used to testing the other air interface. -51.78 -51.63 -51.32 Signal Quality (dB) 56.31 56.24 56.05 MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 20 of 26 REPORT No.SZ23040024S03 Air Interface Channel Probe Position ABM1 ABM2 dB (A/m) dB (A/m) Signal Quality (dB) T Rating WCDMA Band II Axial (Z) 4.73 -51.32 56.05 T4 9400 Transversal (Y) -4.25 -54.13 49.88 T4 WCDMA Band IV Axial (Z) 4.71 -51.33 56.04 T4 1413 Transversal (Y) -2.85 -52.74 49.89 T4 WCDMA Band V Axial (Z) 5.55 -51.30 56.85 T4 4182 Transversal (Y) -2.99 -51.83 48.84 T4 Note: The highlight part of the worst codec would be used to testing the other air interface. Frequency Response PASS PASS PASS MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 21 of 26 REPORT No.SZ23040024S03 9. T-Coil Testing for CMRS IP Voice 9.1. T-Coil Testing for VoLTE General Test Guidance 1. The middle channel of each frequency band is used for T-Coil testing to determine the worst HAC T-Coil rating according ANSI C63.19 2011. 2. For VoLTE radio configuration investigation is choose either one codec and an investigation was performed on all frequency band, data rates and modulations and RB configuration to determine the radio configuration to be used for testing, the following tests results which the worst case configuration would be remarked to be used for the testing for the handset. 3. According to KDB 285076, reporting results involves a two-step process: a. Codec Investigation to determine the worst-case codec for each voice service. b. Air Interface Investigation: Using the worst-case codec for a voice service, a range of channels and bands shall be tested. T-Coil Testing for VoLTE <Radio Configuration Investigation> Air Interface Modulation Channel Probe Position ABM1 ABM2 dB (A/m) dB (A/m) LTE Band 2 QPSK 1RB0 20MHz Axial (Z) 0.67 -52.95 18900 16QAM 1RB0 20MHz Axial (Z) 0.78 -53.03 Note: The highlight part of the worst modulation would be applied to air interface testing. Signal Quality (dB) 53.62 53.81 <EVS Codec Investigation> Code NB AMR(Kbps) WB AMR(Kbps) EVS SWB(Kbps) EVS NB(Kbps) EVS WB(Kbps) 4.75 6.60 12.2 23.85 9.6 128 5.9 24.4 5.9 128 Channel 18900 ABM 1 (dBA/m) 0.66 0.75 0.67 0.78 0.79 0.83 0.80 0.77 0.79 0.68 ABM 2 (dBA/m) -53.26 -53.03 -52.95 -53.02 -53.15 -53.19 -53.10 -53.00 -53.28 -53.02 SNR (dB) 53.92 53.78 53.62 53.80 53.94 54.02 53.90 53.77 54.07 53.70 Fre. Response PASS PASS PASS PASS PASS PASS PASS PASS PASS PASS MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 22 of 26 REPORT No.SZ23040024S03 Note: The worst codec for WB AMR 12.2Kbps will be applied to air interface investigation. Air Interface Mode Channel Probe Position Signal ABM1 ABM2 Quality dB (A/m) dB (A/m) (dB) T Frequency Rating Response LTE Band 2 Axial (Z) 0.67 -52.95 53.62 T4 1RB0 20MHz 18900 Transversal (Y) -1.35 -51.87 50.52 T4 Pass LTE Band 4 Axial (Z) 3.46 -51.03 54.49 T4 1RB0 20MHz 20175 Transversal (Y) -4.02 -51.46 47.44 T4 Pass LTE Band 5 Axial (Z) 4.29 -49.61 53.90 T4 1RB0 10MHz 20525 Transversal (Y) -4.24 -50.96 46.72 T4 PASS LTE Band 7 Axial (Z) 2.92 -51.00 53.92 T4 1RB0 20MHz 21100 Transversal (Y) -3.99 -51.93 47.94 T4 PASS LTE Band 12 Axial (Z) 4.05 -50.87 54.92 T4 1RB0 10MHz 23095 Transversal (Y) -4.81 -52.76 47.95 T4 PASS LTE Band 17 Axial (Z) 5.07 -49.21 54.28 T4 1RB0 10MHz 23790 Transversal (Y) -3.31 -51.29 47.98 T4 PASS LTE Band 66 Axial (Z) 3.23 -50.24 53.47 T4 1RB0 20MHz 132322 Transversal (Y) -4.27 -51.66 47.39 T4 PASS MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 23 of 26 9.2. T-Coil Testing for VoWi-Fi REPORT No.SZ23040024S03 General Test Guidance 1. The middle channel of each frequency band is used for T-Coil testing according ANSI C63.19 2011. 2. According to KDB 285076, recording the results involves follow process: I. Codec Investigation to determine the worst-case codec for each voice service. II. Air Interface Investigation: Using the worst-case codec for a voice service, a range of channels and bands shall be tested. 3. For VoWi-Fi, the lowest data rate of each wireless system for 2.4G WLAN will be used to testing according to the conducted power list. 4. The T-Coil measurement procedure given of VoWi-Fi should be applied: Step 1: Comparing the output power of the WLAN systems, the maximum output power including tune-up tolerance for 2.4GHz WLAN was selected to perform codec investigation of Z axial, recording the results of ABM1, ABM2, SNR and frequency response at the same time. Step 2: Per step 1, selecting the worst codec perform air interface investigation of all of the WLAN modes including to 2.4GHz. Step 3: Per step 2, selecting the worst SNR of 2.4G WLAN to perform the T-Coil testing of Z axial and Y transversal and the test results would be recorded in the report. WLAN 2.4GHz Test Results Air Interface Mode Channel Probe Position ABM1 ABM2 SNR dB (A/m) dB (A/m) (dB) 802.11b Axial (Z) 3.25 7 Transversal (Y) -8.53 WLAN 2.4GHz 802.11g Axial (Z) 3.20 7 Transversal (Y) -3.15 802.11n-HT20 7 Axial (Z) Transversal (Y) 3.42 -5.44 Remark: Phone condition: HAC Air on, Backlight off, maximum volume. -39.72 -45.70 -50.09 -40.12 -50.64 -42.73 42.97 37.17 53.29 36.97 54.06 37.29 T Rating T4 T4 T4 T4 T4 T4 Frequency Response PASS PASS PASS MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 24 of 26 10. Uncertainty Assessment REPORT No.SZ23040024S03 Error Description Uncertainty Value (±%) Probability Diviso r (Ci) ABM1 (Ci) ABM2 Standard Uncertainty (ABM1) (±%) Standard Uncertainty (ABM2) (±%) Probe Sensitivity Reference level 3.0 N 1 1 1 3.0 3.0 AMCC geometry 0.4 R 1.732 1 1 0.2 0.2 AMCC current 1.0 R 1.732 0.7 0.7 0.6 0.6 Probe positioning during calibrate 0.1 R 1.732 1 1 0.1 0.1 Noise contribution 0.7 R 1.732 0.0143 1 0.0 0.4 Frequency slope 5.9 R 1.732 0.1 1 0.3 3.5 Probe System Repeatability/drift 1.0 R 1.732 1 1 0.6 0.6 Linearity/dynamic range 0.6 R 1.732 1 1 0.4 0.4 Acoustic noise 1.0 R 1.732 0.1 1 0.1 0.6 Probe angle 2.3 R 1.732 1 1 1.4 1.4 Spectral processing 0.9 R 1.732 1 1 0.5 0.5 Integration time 0.6 N 1 1 5 0.6 3.0 Field disturbation 0.2 R 1.732 1 1 0.1 0.1 Test Signal Reference signal spectral response 0.6 R 1.732 0 1 0.0 0.4 Positioning Probe positioning 1.9 R 1.732 1 1 1.1 1.1 Phantom thickness 0.9 R 1.732 1 1 0.5 0.5 EUT positioning 1.9 N 1 0.78 0.71 0.1 0.1 External contributions RF interference 0.0 R 1.732 1 0.3 0.0 0.0 Test signal variation 2.0 R 1.732 1 1 1.2 1.2 Combined Std. Uncertainty 4.1 6.1 Coverage Factor for 95 % K=2 K=2 Expanded STD Uncertainty 8.1 12.3 MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 25 of 26 Annex A General Information REPORT No.SZ23040024S03 1. Identification of the Responsible Testing Laboratory Laboratory Name: Shenzhen Morlab Communications Technology Co., Ltd. Laboratory Address: FL.3, Building A, FeiYang Science Park, No.8 LongChang Road, Block 67, BaoAn District, ShenZhen, GuangDong Province, P. R. China Telephone: +86 755 36698555 Facsimile: +86 755 36698525 2. Identification of the Responsible Testing Location Name: Address: Shenzhen Morlab Communications Technology Co., Ltd. FL.3, Building A, FeiYang Science Park, No.8 LongChang Road, Block 67, BaoAn District, ShenZhen, GuangDong Province, P. R. China 3. Facilities and Accreditations The FCC designation number is CN1192, the test firm registration number is 226174. Note The main report is end here and the other annex (B,C,D) will be submitted separately. ****** END OF MAIN REPORT ****** MORLAB Shenzhen Morlab Communications Technology Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Http://www.morlab.cn Fax: 86-755-36698525 E-mail: service@morlab.cn Page 26 of 26Acrobat Distiller 11.0 (Windows)