SZ23040024S02 BLU C5L MAX FCC HAC RF Emission

SZ23040024S02 BLU C5L MAX FCC HAC RF Emission

BLU Products, Inc. BLUC5LMX175 YHLBLUC5LMX175 YHLBLUC5LMX175 bluc5lmx175

SZ23040024S02 HAC RF Emission

BLU Products, Inc. BLUC5LMX175 Smart Phone with GSM, WCDMA, LTE, WiFi and Bluetooth YHLBLUC5LMX175 YHLBLUC5LMX175 bluc5lmx175

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REPORT No.SZ23040024S02

Hearing Aid Compatibility (HAC) RF Emissions 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

: 2023-04-27

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. FL.1-3, 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 25

REPORT No.SZ23040024S02
DIRECTORY
1. Attestation of Testing Summary  4 2. Technical Information 5 2.1. Applicant and Manufacturer Information 5 2.2. Equipment under Test (EUT) Description 5 2.3. Photographs of the EUT 7 2.4. Applied Reference Documents  7 3. RF Audio Interference Level 8 4. Air Interface and Operating Mode  9 5. HAC (RF) Measurement System  11 5.1. RF Measurement Setup 11 5.2. System Unit 12 6. RF Measurement Procedure 14 6.1. General Guidance  14 6.2. RF Test Instructions  15 7. Test Equipment List 17 8. System Validation  18 8.1. Test setup 18 8.2. Validation Result  19 9. Modulation Interference Factor  20 10. Conducted Power  22 11. Low-power Exemption  22 12. Summary Test Results  23 13. Uncertainty Assessment 24 Annex A General Information  25 Annex B Test Setup Photos Annex C Plots of Performance System Check Annex D Plots of RF Emission Test Results

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

Annex E DASY Calibration Certificate

REPORT No.SZ23040024S02

Version 1.0

Change History Date 2023-06-09

Reason for Change First edition

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

REPORT No.SZ23040024S02

1. Attestation of Testing Summary

Air Interface

Frequency Band

E-field M-Rating

GSM CMRS Voice

GSM850 GSM1900

M4 M4

HAC Rate Category: M4

Note

1. It is compliance with HAC limits for this device that specified in FCC 47 CFR Part 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. FL.1-3, 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 25

2. Technical Information

REPORT No.SZ23040024S02

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)

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

REPORT No.SZ23040024S02

Bluetooth LE: GFSK

VoLTE Mode:

Support

VoWi-Fi Mode:

Support

SIM Cards Description:

SIM 1 SIM 2

GSM+WCDMA+LTE 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. FL.1-3, 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 25

2.3. Photographs of the EUT

REPORT No.SZ23040024S02

Note: Please refer to the External Photos for the Photos of the EUT

2.4. Applied Reference Documents

Leading reference documents for testing:

Method

No.

Identity

Document Title

determination

/Remark

1

Hearing aid-compatible mobile FCC 47 CFR Part 20(20.19) handsets.

No deviation

American National Standard Methods of

2 ANSI C63.19-2011

Measurement of Compatibility between Wireless Communications Devices and

No deviation

Hearing Aids

3 KDB 285076 D01v06r03 HAC Guidance

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. FL.1-3, 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 25

REPORT No.SZ23040024S02
3. RF Audio Interference Level

FCC wireless hearing aid compatibility rules ensure that consumers with hearing loss are able to

access wireless communications services through a wide selection of handsets without experiencing

disabling radio frequency (RF)interference or other technical obstacles. To define and measure the

hearing aid compatibility of handsets, in CFR47 part 20.19 ANSI C63.19 is referenced.

A handset is considered hearing aid-compatible for acoustic coupling if it meets a rating of at least

M3 under ANSI C63.19, and A handset is considered hearing aid compatible for inductive coupling if

it meets a rating of at least T3. According to ANSI C63.19 2011 version, for acoustic coupling, the

RF electric field emissions of wireless communication devices should be measured and rated

according to the emission level as below.

Table 3.1 WD RF audio Interference level categories in logarithmic units

Emission Categories

E-field Emissions

960MHz

960MHz

M1

50 to 55 dB (V/m)

45 to 50 dB (V/m)

M2

45 to 50 dB (V/m)

35 to 40 dB (V/m)

M3

40 to 45 dB (V/m)

30 to 35 dB (V/m)

M4

40 dB (V/m)

30 dB (V/m)

Table 3.2 System performance classification table

System classification

Category sum Hearing aid category + telephone category

Usable

Hearing aid category + telephone category = 4

Normal use

Hearing aid category + telephone category = 5

Excellent performance

Hearing aid category + telephone category = 6

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

REPORT No.SZ23040024S02
4. 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

FDD-LTE

Band 7 Band 12

VD

Wi-Fi & BT

VoLTE

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);

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. FL.1-3, 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 25

REPORT No.SZ23040024S02
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 XYNet 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 RF Emission for VoLTE of LTE Band 71 is not testing required.

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

REPORT No.SZ23040024S02
5. HAC (RF) Measurement System
5.1. RF Measurement Setup

Fig 5.1 SPEAG RF System Configurations

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

5.2. System Unit

REPORT No.SZ23040024S02

 E-Field Probe The RF measurement is conducted with the dosimetric probe (manufactured by SPEAG).The probe is specially designed and calibrated for use with high permittivity. The dosimetric probe has special calibration at different frequency. This probe has a built in optical surface detection system to prevent from collision with phantom.

E-Field Probe Specification

<ER3DV6>

Construction Calibration

One dipole parallel, two dipoles normal to probe axis Built-in shielding against static charges In air from 100 MHz to 3.0 GHz (Absolute accuracy ±6.0%, k=2)

Frequency

10 MHz to 6 GHz;Linearity: ± 0.2 dB

Directivity Dynamic Range

± 0.2 dB in HSL (rotation around probe axis) ± 0.4 dB in HSL (rotation normal to probe axis) 2 V/m to 1000 V/m (M3 or better device readings fall well below diode compression point)

Linearity

± 0.2 dB

Overall length: 330 mm (Tip: 16 mm)

Dimensions

Tip diameter: 8 mm (Body: 12 mm) Distance from probe tip to dipole centers: 2.5

mm

Fig 5.2 Photo of ER3DV6

Probe Tip Description:

HAC field measurements take place in the close near field with high gradients. Increasing the

measuring distance from the source will generally decrease the measured field values (in case of

the validation dipole approx. 10per mm).

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

REPORT No.SZ23040024S02

 Data Acquisition Electronics (DAE)
The data acquisition electronics (DAE) consists of a highly sensitive electrometer-grade preamplifier with auto-zeroing, a channel and gain-switching multiplexer, a fast 16 bit AD-converter and a command decoder and control logic unit. AD-converter and a command decoder and control logic unit. Transmission to the measurement server is accomplished through an optical downlink for data and status information as well as an optical uplink for commands and the clock. The input impedance of the DAE is 200 MOhm; the inputs are symmetrical and floating. Common mode rejection is above 80 dB.

Fig 5.3 Photo of DAE

 Test Arch Construction

Active single sensor probe for both the axial and radial measurement scans ­ Fully RF shielded, compatible with DAE and adapted probe cup.

Dimensions

Length: 370 mm Width: 370 mm Height: 370 mm

Fig 5.4 Photo of Arch

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

REPORT No.SZ23040024S02
6. RF Measurement Procedure
6.1. General Guidance
Referenced from ANSI C63.19 -2011 section 5.5.1: 1. Confirm the proper operation of the field probe, probe measurement system, and other
instrumentation and the positioning system. 2. Position the WD in its intended test position. 3. Set the WD to transmit a fixed and repeatable combination of signal power and modulation
characteristic that is representative of the worst case (highest interference potential) encountered in normal use. Transiently occurring start-up, changeover, or termination conditions, or other operations likely to occur less than 1% of the time during normal operation, may be excluded from consideration. Transiently occurring start-up, changeover, or termination conditions, or other operations likely to occur less than 1% of the time during normal operation, may be excluded from consideration. 4. The center sub-grid shall be centered on the T-Coil mode perpendicular measurement point or the acoustic output, as appropriate. Locate the field probe at the initial test position in the 50 mm by 50 mm grid, which is contained in the measurement plane, refer to illustrated in Figure 8.2. If the field alignment method is used, align the probe for maximum field reception. 5. Record the reading at the output of the measurement system. 6. Scan the entire 50 mm by 50 mm region in equality spaced increments and record the reading at each measurement point, the distance between measurement points shall be sufficient to assure the identification of the maximum reading. 7. Identify the five contiguous sub-grids around the center sub-grid whose maximum reading is the lowest of all available choices. This eliminates the three sub-grids with the maximum readings. Thus, the six areas to be used to determine the WD's highest emissions are identified. 8. Identify the maximum reading within the non-excluded sub-grids identified in step 7). 9. Convert the maximum reading identified in step 8) to RF audio interference level, in, V/m, by taking the square root of the reading and then dividing it by the measurement system transfer function, established in ANSI C63.19 -2011 section 5.5.1.1. Convert the result to dB(V/m) by taking the base-10 logarithm and multiplying it by 20. Expressed as a formula:

10. The RF audio interference level in dB (V/m) is obtained by adding the MIF (in dB) to the maximum steady-state rms field-strength reading, in dB (V/m)
11. Compare this RF audio interference level with the categories in ANSI C63.19-2011 clause 8 and record the resulting WD category rating.

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

6.2. RF Test Instructions

REPORT No.SZ23040024S02

Fig 6.1 WD near-field emission scan flowchart

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

REPORT No.SZ23040024S02

Fig 6.2 WD reference and plane for RF emission measurements

Fig 6.3 Gauge block with E-field probe

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

7. Test Equipment List

REPORT No.SZ23040024S02

Manufacturer

Name of Equipment

Type/Model

SPEAG SPEAG SPEAG SPEAG
SPEAG
SPEAG R&S R&S Agilent R&S Agilent R&S
Anritsu mini-circuits
Agilent

Isotropic E-Field Probe Audio Holder
835MHz Calibration Dipole 1880MHz Calibration Dipole
DOSIMETRIC ASSESSMENT SYSTEM Data Acquisition Electronics
Base Station Network Emulator Signal Generator
Power Senor Power Meter Power Sensor Power Meter
Amplifier Dual Directional Coupler

ER3DV6 N/A
CD835V3 CD1880V3
DASY52
DAE4 CMU200 CMW500 N5182B NRP8S E4416A NRP8S E4418B ZHL-42W+
778D

Serial No./ SW Version
2344 1094 1113 1111
52.10.4.1527
480 107082 165755 MY53050509 103215 MY45102093 103240 GB43318055 608501717 50422

Calibration

Last Cal. Due Date

2022.07.15 2023.07.14

NCR

NCR

2021.10.23 2024.10.22

2021.10.23 2024.10.22

NCR

NCR

2022.06.22 2022.07.04 2023.02.09 2022.11.30 2023.02.09 2022.10.11 2023.02.09 2022.08.30
NCR NA

2023.06.21 2023.07.03 2024.02.08 2023.11.29 2024.02.08 2023.10.10 2024.02.08 2023.08.29
NCR NA

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

8. System Validation

REPORT No.SZ23040024S02

According to ANSI C63.19, before hearing aid testing commences, the experimental setup shall be validated. Sub clauses 6.3.1through 6.3.5 include a set of pretest procedures designed to validate the experimental setup to ensure the accuracy of the results. To verify that the hearing aid performs per the manufacturer's specifications, 6.3.5 advises that the hearing aid be pretested per ANSI S3.22.

8.1. Test setup
1. In the simplified setup for system evaluation, the EUT is replaced by a calibrated dipole and the power source is replaced by a continuous wave which comes from a signal generator.
2. Position the E-field probe at a 15 mm distance from the top surface of the dipole, which is also fixed in an appropriate fixture.
3. Make sure that the desired measuring channel of the probe is aligned for maximum reception of the E-field generated by the dipole. This may be accomplished by rotating the probe until the maximum value is located. The E-field probe shall have been calibrated over the frequency range to be measured using standard calibration techniques.
4. Adjust the power level (20dBm100mW) of the signal generator at the initial starting frequency such that the desired E-field strength at the 15 mm distance from the tip of the dipole is achieved. Setting the field strength to be in the range of category M2 is advised.
5. Step the frequency in increments of 1%, adjusting the power fed into the dipole such that the desired E-field strength is maintained.

Fig 8.1 WD dipole calibration procedure

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

8.2. Validation Result

REPORT No.SZ23040024S02

After testing, record the frequency and signal generator setting at each frequency for use during the actual immunity test. Comparing to the original E-field value provided by SPEAG, the verification data should be within its specification of 25 %. Table 6.1 shows the target value and measured value. The table below indicates the system performance check can meet the variation criterion and the plots can be referred to annex A of this report. Deviation = ((Average E-field Value) - (Target value)) / (Target value) * 100%

Fre. (MHz)

Input Power (mW)

Target Value (V/m)

E-Field above high end (V/m)

E-Field above low end (V/m)

Average Value (V/m)

Deviation (%)

Limit (%)

Date

835

100 110.80

121.06

120.78

120.92

9.13

±12.8 2023.04.27

1880

100

89.50

96.94

95.72

96.33

7.63

±12.8 2023.04.27

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

REPORT No.SZ23040024S02
9. Modulation Interference Factor

The HAC Standard ANSI C63.19-2011 defines a new scaling using the Modulation Interference

Factor (MIF).For any specific fixed and repeatable modulated signal, a modulation interference

factor (MIF, expressed in dB) may be developed that relates its interference potential to its

steady-state rms signal level or average power level.

This factor is a function only of the audio-frequency amplitude modulation characteristics of the

signal and is the same for field-strength and conducted power measurements. It is important to

emphasize that the MIF is valid only for a specific repeatable audio-frequency amplitude modulation

characteristic. Any change in modulation characteristic requires determination and application of a

new MIF.

The Modulation Interference factor (MIF, in dB) is added to the measured average E-field (in dBV/m)

and converts it to the RF Audio Interference level (in dBV/m). This level considers the audible

amplitude modulation components in the RF E-field. CW fields without amplitude modulation are

assumed to not interfere with the hearing aid electronics. Modulations without time slots and low

fluctuations at low frequencies have low MIF values, TDMA modulations with narrow transmission

and repetition rates of few 100 Hz have high MIF values and give similar classifications as ANSI

C63.19-2011. ER3D, EF3D and EU2D E-field probes have a bandwidth <10 kHz and can therefore

not evaluate the RF envelope in the full audio band. DASY52 is therefore using the indirect

measurement method according to ANSI C63.19-2011 which is the primary method. These near

field probes read the averaged E-field measurement. Especially for the new high peak-to-average

(PAR) signal types, the probes shall be linearized by PMR calibration in order to not overestimate

the field reading. Probe Modulation Response (PMR) calibration linearizes the probe response over

its dynamic range for specific modulations which are characterized by their UID and result in an

uncertainty specified in the probe calibration certificate. The MIF is characteristic for a given

waveform envelope and can be used as a constant conversion factor if the probe has been PMR

calibrated. The evaluation method for the MIF is defined in ANSI C63.19-2011 section D.7. An RMS

demodulated RF signal is fed to a spectral filter (similar to an A weighting filter) and forwarded to a

temporal filter acting as a quasi-peak detector. The averaged output of these filtering is scaled to a 1

kHz 80% AM signal as reference. MIF measurement requires additional instrumentation and is not

well suited for evaluation by the end user with reasonable uncertainty. It may alliteratively be

determined through analysis and simulation, because it is constant and characteristic for a

communication signal. DASY52 uses well-defined signals for PMR calibration. The MIF of these

signals has been determined by simulation and it is automatically applied. The MIF measurement

uncertainty is estimated as follows, declared by HAC equipment provider SPEAG, for modulation

frequencies from slotted waveforms with fundamental frequency and at least 2 harmonics within 10

kHz:

0.2 dB for MIF

0.5 dB for MIF

1 dB for MIF

-7dB to +5 dB

-13dB to +11 dB

> -20 dB

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

REPORT No.SZ23040024S02

MIF values applied in this test report were provided by the HAC equipment provider of SPEAG, and the worst values for all air interface are listed below to be determine the Low-power Exemption.

UID

Communication System Name

MIF(dB)

10021 10025 10460 10225 10169 10170 10179 10181 10175 10177 10184 10187 10172 10173 10174 10240 10237 10234 10231 10228 10061 10077 10427 10069 10616

GSM-FDD(TDMA,GMSK) EDGE-FDD (TDMA, 8PSK, TN 0)
UMTS-FDD(WCDMA, AMR) UMTS-FDD (HSPA+)
LTE-FDD(SC-FDMA,1RB,20MHz,QPSK) LTE-FDD(SC-FDMA,1RB,20MHz,16-QAM) LTE-FDD(SC-FDMA,1RB,20MHz,64-QAM) LTE-FDD(SC-FDMA,1RB,15MHz,QPSK) LTE-FDD(SC-FDMA,1RB,10MHz,QPSK)
LTE-FDD(SC-FDMA,1RB,5MHz,QPSK) LTE-FDD(SC-FDMA,1RB,3MHz,QPSK) LTE-FDD(SC-FDMA,1RB,1.4MHz,QPSK) LTE-TDD (SC-FDMA, 1 RB, 20 MHz, QPSK) LTE-TDD (SC-FDMA, 1 RB, 20 MHz, 16-QAM) LTE-TDD (SC-FDMA, 1 RB, 20 MHz, 64-QAM) LTE-TDD (SC-FDMA, 1 RB, 15 MHz, QPSK) LTE-TDD (SC-FDMA, 1 RB, 10 MHz, QPSK) LTE-TDD (SC-FDMA, 1 RB, 5 MHz, QPSK) LTE-TDD (SC-FDMA, 1 RB, 3 MHz, QPSK) LTE-TDD (SC-FDMA, 1 RB, 1.4 MHz, QPSK) IEEE 802.11b WiFi 2.4 GHz (DSSS, 11 Mbps) IEEE 802.11g WiFi 2.4 GHz (DSSS/OFDM, 54 Mbps) IEEE 802.11n (HT Greeneld, 150 Mbps, 64-QAM) IEEE 802.11a/h WiFi 5 GHz (OFDM, 54 Mbps) IEEE 802.11ac WiFi (40MHz, MCS0, 90pc duty cycle)

3.63 3.75 -25.43 -20.39 -15.63 -9.76 -9.93 -15.63 -15.63 -15.63 -15.62 -15.62 -1.62 -1.44 -1.54 -1.62 -1.62 -1.62 -1.62 -1.62 -2.02 0.12 -13.44 -3.15 -5.57

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

10. Conducted Power

REPORT No.SZ23040024S02

The maximum tune-up power of WWAN & WLAN was recorded in the annex E of SZ23040024S01.

11. Low-power Exemption

Air Interface

Max Tune-up Limit (dBm)

Worst Case MIF (dB)

Power + MIF(dB)

C63.19 Test Required

GSM850

33.00

3.63

36.63

Yes

GSM1900

30.00

3.63

33.63

Yes

WCDMA II

23.00

-25.43

-2.43

No

WCDMA IV

23.00

-25.43

-2.43

No

WCDMA V

23.00

-25.43

-2.43

No

LTE Band 2

24.50

-9.76

14.74

No

LTE Band 4

24.50

-9.76

14.74

No

LTE Band 5

24.00

-9.76

14.24

No

LTE Band 7

24.00

-9.76

14.24

No

LTE Band 12

24.00

-9.76

14.24

No

LTE Band 17

24.00

-9.76

14.24

No

LTE Band 66

24.50

-9.76

14.74

No

WLAN 2.4GHz 802.11b

16.00

-2.02

13.98

No

WLAN 2.4GHz 802.11g

14.00

0.12

14.12

No

WLAN 2.4GHz 802.11n20

12.00

-13.44

-1.44

No

Note:

1. According to ANSI C63.19 2011-version, for the air interface technology of a device is exempt

from testing when its average antenna input power plus its MIF is 17 dBm for any of its

operating modes.

2. For all of bands, the worst case of maximum tune-up limit will be test RF emission, therefore

WCDMA and FDD-LTE mode is not necessary for testing.

3. For GSM mode, only GSM voice will be tested for the low power exemption.

4. HAC RF rating is M4 for the air interface which meets the low power exemption.

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

12. Summary Test Results

REPORT No.SZ23040024S02

Air Interface

Mode

Channel

MIF

GSM850

GSM Voice

128

3.63

GSM850

GSM Voice

189

3.63

GSM850

GSM Voice

251

3.63

GSM1900

GSM Voice

512

3.63

GSM1900

GSM Voice

661

3.63

GSM1900

GSM Voice

810

3.63

Remark:

Phone condition: HAC Air on, Backlight off, maximum volume.

E-Field (dBV/m)
32.70 32.97 33.24 22.16 22.63 23.42

Margin to FCC M3 limit
(dB)
12.30 12.03 11.76 12.84 12.37 11.58

E-Field M Rating
M4 M4 M4 M4 M4 M4

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

13. Uncertainty Assessment

REPORT No.SZ23040024S02

The component of uncertainly may generally be categorized according to the methods used to evaluate them. The evaluation of uncertainly by the statistical analysis of a series of observations is termed a Type evaluation of uncertainty. The evaluation of uncertainty by means other than the statistical analysis of a series of observation is termed a Type B evaluation of uncertainty. Each component of uncertainty, however evaluated, is represented by an estimated standard deviation, termed standard uncertainty, which is determined by the positive square root of the estimated variance. The combined standard uncertainty of the measurement result represents the estimated standard deviation of the result. It is obtained by combining the individual standard uncertainties of both Type A and Type B evaluation using the usual "root-sum-squares" (RSS) methods of combining standard deviations by taking the positive square root of the estimated variances. Expanded uncertainty is a measure of uncertainty that defines an interval about the measurement result within which the measured value is confidently believed tolie. It is obtained by multiplying the combined standard uncertainty by a coverage factor. For purpose of this document, a coverage factor two is used, which corresponds to confidence interval of about 95 %. The DASY uncertainty Budget is showed in Table 12.1.

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25

Annex A General Information

REPORT No.SZ23040024S02

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,E) will be submitted separately.

****** END OF MAIN REPORT ******

MORLAB

Shenzhen Morlab Communications Technology Co., Ltd. FL.1-3, 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 25


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