2BB2C-X-AUDIO-IBluetooth Headset

FCC ID LABEL: Ca. 3mm x 10mm Label Location FCC ID: 2BB2C-X-AUDIO-I

FCC RF Exposure EUT Description: Bluetooth Headset Model No.: X-Audio-i FCC ID: 2BB2C-X-AUDIO-I 1. Limits According to KDB 447498 D01 General RF Exposure Guidance v06 The 1‐g and 10‐g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤50 mm are determined by: [(max power of channel, including tune‐up tolerance, mW)/(min. test separation distance, mm)]ꞏ[√f(GHz)]≤3.0 for 1‐g SAR and ≤ 7.5 for 10‐g extremity SAR, Where: Result=P/D*√F F= the RF channel transmit frequency in GHz P=Maximum turn‐up power in mw D=Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation Frequency (MHz) Output power (dBm) Tune Up Power (dBm) Max Tune Up power dBm/mW Min test separati on distance mm Result Limit SAR Test Exclusion 2402 6.98 6±1(7) 5.012 5 1.554 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2408234866-1E, antenna gain=2dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. The test exclusion threshold is 1.554 which is<= 3, SAR testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ꞏ[√f(GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 1.2mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300C) Engineering Specification DOCUMENT YF3216H4R2G4502 REV. NO. C PAGE 1 OF 8 YF 3216 H4 R 2G4502 1 2 3 4 5 3.2 x 1.6 x 1.2 (mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300C) Engineering Specification 1. Product Number 1 2 3 4 5 迎丰天线技术 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 1.2mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300C) Engineering Specification DOCUMENT YF3216H4R2G4502 REV. NO. C PAGE 2 OF 8 2. Features *Stable and reliable in performances *Low temperature coefficient of frequency *Low profile, compact size *RoHS compliance *SMT processes compatible 3. Applications *Bluetooth earphone systems *Hand-held devices when WiFi /Bluetooth functions are needed, e.g., Smart phone. *IEEE802.11 b/g/n *ZigBee *Wireless PCMCIA cards or USB dongle 4. Description Ying feng chip antenna series are specially designed for WiFi/Bluetooth applications. Based on yingfeng proprietary design and processes, this chip antenna has excellent stability and sensitivity to consistently provide high signal reception efficiency. 5. Electrical Specifications (40 x 40 mm 2 ground plane) 5-1. Electrical Table Characteristics Specifications Unit Outline Dimensions 3.2x1.6x1.2 mm Working Frequency 2400~2500 MHz VSWR 2 Max. Impedance 50  Polarization Linear Polarization Gain Peak 2 (typical) dBi Efficiency 75 (typical) % 5-2. Return Loss & VSWR 迎丰天线技术 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 1.2mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300C) Engineering Specification DOCUMENT YF3216H4R2G4502 REV. NO. C PAGE 3 OF 8 Return Loss (S 11 ) Smith Chart(S 11 ) 6 Outline Dimensions of Antenna & Evaluation Board (unit: mm) 6-1. Antenna Dimensions Configuration and Dimensions: 迎丰天线技术 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 1.2mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300C) Engineering Specification DOCUMENT YF3216H4R2G4502 REV. NO. C PAGE 4 OF 8 迎丰天线技术 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 1.2mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300C) Engineering Specification DOCUMENT YF3216H4R2G4502 REV. NO. C PAGE 5 OF 8 7.Radiation Pattern (40x 40 mm 2 ground plane) 7-1. 3D Gain Pattern @ 2450 MHz Z X Y Y X Z 迎丰天线技术 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 1.2mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300C) Engineering Specification DOCUMENT YF3216H4R2G4502 REV. NO. C PAGE 6 OF 8 迎丰天线技术 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 1.2mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300C) Engineering Specification DOCUMENT YF3216H4R2G4502 REV. NO. C PAGE 7 OF 8 迎丰天线技术 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 1.2mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300C) Engineering Specification DOCUMENT YF3216H4R2G4502 REV. NO. C PAGE 8 OF 8 迎丰天线技术

Page 1 of 53 Report No.: HK2408234866-2E FCC Test Report Test report On Behalf of Shenzhen Youge Intelligent Co., Ltd For Bluetooth Headset Model No.: X-Audio-i FCC ID: 2BB2C-X-AUDIO-I Prepared For : Shenzhen Youge Intelligent Co., Ltd Unit 702, unit 6, Taoyuanju 14 District, Taoyuan community, Xixiang street, Bao’an District, Shenzhen, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: Aug. 23, 2024 ~ Sept. 03, 2024 Date of Report: Sept. 03, 2024 Report Number: HK2408234866-2E Page 2 of 53 Report No.: HK2408234866-2E Test Result Certification Applicant’s name ....... Shenzhen Youge Intelligent Co., Ltd Address ....................... . Unit 702, unit 6, Taoyuanju 14 District, Taoyuan community, Xixiang street, Bao’an District, Shenzhen, China Manufacturer's Name .......................... . Shenzhen Youge Intelligent Co., Ltd Address ........................ Unit 702, unit 6, Taoyuanju 14 District, Taoyuan community, Xixiang street, Bao’an District, Shenzhen, China Product description Trade Mark: callmusic Product name ................ Bluetooth Headset Model and/or type reference ................... . X-Audio-i Standards ................... . 47 CFR FCC Part 15 Subpart C 15.247 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ................................. . Date (s) of performance of tests ... . Aug. 23, 2024 ~ Sept. 03, 2024 Date of Issue ................................. Sept. 03, 2024 Test Result ..................................... Pass Testing Engineer : (Len Liao) Technical Manager : (Sliver Wan) Authorized Signatory : (Jason Zhou) Page 3 of 53 Report No.: HK2408234866-2E Table of Contents Page 1. Summary ........................................................................................................................................................ 5 1.1. Test Standards ......................................................................................................................................... 5 1.2. Test Description ....................................................................................................................................... 5 1.3. Information of the Test Laboratory ........................................................................................................... 6 1.4. Statement of the Measurement Uncertainty ............................................................................................ 6 2. General Information ....................................................................................................................................... 7 2.1. Environmental Conditions ........................................................................................................................ 7 2.2. General Description of EUT ..................................................................................................................... 7 2.3. Description of Test Modes and Test Frequency ....................................................................................... 8 2.4. Equipments Used During the Test ........................................................................................................... 9 2.5. Related Submittal(S) / Grant (S) ............................................................................................................ 10 2.6. Modifications .......................................................................................................................................... 10 2.7. Description of Test Setup ....................................................................................................................... 10 2.8. Description of Support Units .................................................................................................................. 11 3. Test Conditions and Results ...................................................................................................................... 12 3.1. Conducted Emissions Test .................................................................................................................... 12 3.2. Radiated Emissions and Band Edge ..................................................................................................... 15 3.3. Maximum Peak Conducted Output Power ............................................................................................ 26 3.4. 20db Bandwidth ..................................................................................................................................... 27 3.5. Frequency Separation ........................................................................................................................... 31 3.6. Number of Hopping Frequency ............................................................................................................. 33 3.7. Time of Occupancy (Dwell Time) ........................................................................................................... 35 3.8. Out-of-Band Emissions .......................................................................................................................... 39 3.9. Pseudorandom Frequency Hopping Sequence .................................................................................... 49 3.10. Antenna Requirement ............................................................................................................................ 50 4. Test Setup Photos of the EUT ...................…

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Page 33 of 53 Report No.: HK2408234866-2E 3.6. Number of Hopping Frequency Limit Frequency hopping systems in the 2400–2483.5 MHz band shall use at least 15 channels. Test Procedure The transmitter output was connected to the spectrum analyzer through an attenuator. Set spectrum analyzer start 2400MHz to 2483.5MHz. Test Configuration EUT SPECTRUM ANALYZER Test Results Modulation Number of Hopping Channel Limit Result GFSK 79 ≥15 Pass π/4DQPSK 79 8DPSK 79 Test plot as follows: Page 34 of 53 Report No.: HK2408234866-2E GFSK Modulation π/4DQPSK Modulation 8DPSK Modulation Page 35 of 53 Report No.: HK2408234866-2E 3.7. Time of Occupancy (Dwell Time) Limit The average time of occupancy on any channel shall not be greater than 0.4 seconds within a period of 0.4 seconds multiplied by the number of hopping channels employed. Test Procedure The transmitter output was connected to the spectrum analyzer through an attenuator. Set center frequency of spectrum analyzer=operating frequency with 1MHz RBW and 3MHz VBW, Span 0Hz. Test Configuration EUT SPECTRUM ANALYZER Test Results Modulation Packet Pulse time (ms) Dwell time (second) Limit (second) Result GFSK DH1 0.402 0.129 0.40 PASS DH3 1.657 0.265 DH5 2.904 0.310 π/4DQPSK 2-DH1 0.410 0.131 0.40 PASS 2-DH3 1.662 0.266 2-DH5 2.911 0.311 8DPSK 3-DH1 0.410 0.131 0.40 PASS 3-DH3 1.661 0.266 3-DH5 2.912 0.311 Note: 1. We have tested all mode at high, middle and low channel, and recoreded worst case at middle channel. 2. Dwell time=Pulse time (ms) × (1600 ÷ 2 ÷ 79) ×31.6 Second for DH1, 2-DH1, 3-DH1 Dwell time=Pulse time (ms) × (1600 ÷ 4 ÷ 79) ×31.6 Second for DH3, 2-DH3, 3-DH3 Dwell time=Pulse time (ms) × (1600 ÷ 6 ÷ 79) ×31.6 Second for DH5, 2-DH5, 3-DH5 Test plot as follows: Page 36 of 53 Report No.: HK2408234866-2E GFSK Modulation DH1 DH3 DH5 Page 37 of 53 Report No.: HK2408234866-2E π/4DQPSK Modulation 2-DH1 2-DH3 2-DH5 Page 38 of 53 Report No.: HK2408234866-2E 8DPSK Modulation 3-DH1 3-DH3 3-DH5 Page 39 of 53 Report No.: HK2408234866-2E 3.8. Out-of-Band Emissions Limit In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF con-ducted or a radiated measurement, pro-vided the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter com-plies with the conducted power limits based on the use of RMS averaging over a time interval, as permitted under paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. Attenuation below the general limits specified in §15.209(a) is not required. In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated device is operating, the RF power that is produced shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF conducted or a radiated measurement, provided that the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted power limits based on the use of root-mean-square averaging over a time interval, as permitted under Section 5.4(4), the attenuation required shall be 30 dB instead of 20 dB. Attenuation below the general field strength limits specified in RSS-Gen is not required. Test Procedure Connect the transmitter output to spectrum analyzer using a low loss RF cable, and set the spectrum analyzer to RBW=100 kHz, VBW= 300 kHz, peak detector , and max hold. Measurements utilizing these setting are made of the in-band reference level, band edge and out-of-band emissions. Test Configuration EUT SPECTRUM ANALYZER Test Results Remark: The measurement frequency range is from 30MHz to the 10th harmonic of the fundamental frequency. The lowest, middle and highest channels are tested to verify the spurious emissions and bandage measurement data. We measured all conditions (DH1, DH3, DH5) and recorded worst case at DH5, 2DH5 and 3DH5. Test plot as follows: Page 40 of 53 Report No.: HK2408234866-2E GFSK CH00 CH39 Page 41 of 53 Report No.: HK2408234866-2E CH78 Page 42 of 53 Report No.: HK2408234866-2E Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Page 43 of 53 Report No.: HK2408234866-2E π/4DQPSK CH00 CH39 Page 44 of 53 Report No.: HK2408234866-2E CH78 Page 45 of 53 Report No.: HK2408234866-2E Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Page 46 of 53 Report No.: HK2408234866-2E 8DPSK CH00 CH39 Page 47 of 53 Report No.: HK2408234866-2E CH78 Page 48 of 53 Report No.: HK2408234866-2E Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Page 49 of 53 Report No.: HK2408234866-2E 3.9. Pseudorandom Frequency Hopping Sequence TEST APPLICABLE For 47 CFR Part 15C section 15.247 (a) (1): Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hop-ping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400–2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 125 mW. The system shall hop to channel frequencies that are selected at the system hopping rate from a pseudo randomly ordered list of hopping frequencies. Each frequency must be used equally on the average by each transmitter. The system receivers shall have input bandwidths that match the hop-ping channel bandwidths of their c…

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Page 1 of 53 Report No.: HK2408234866-1E FCC Test Report Test report On Behalf of Shenzhen Youge Intelligent Co., Ltd For Bluetooth Headset Model No.: X-Audio-i FCC ID: 2BB2C-X-AUDIO-I Prepared For : Shenzhen Youge Intelligent Co., Ltd Unit 702, unit 6, Taoyuanju 14 District, Taoyuan community, Xixiang street, Bao’an District, Shenzhen, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: Aug. 23, 2024 ~ Sept. 03, 2024 Date of Report: Sept. 03, 2024 Report Number: HK2408234866-1E Page 2 of 53 Report No.: HK2408234866-1E Test Result Certification Applicant’s name ....... Shenzhen Youge Intelligent Co., Ltd Address ....................... . Unit 702, unit 6, Taoyuanju 14 District, Taoyuan community, Xixiang street, Bao’an District, Shenzhen, China Manufacturer's Name .......................... . Shenzhen Youge Intelligent Co., Ltd Address ........................ Unit 702, unit 6, Taoyuanju 14 District, Taoyuan community, Xixiang street, Bao’an District, Shenzhen, China Product description Trade Mark: callmusic Product name ................ Bluetooth Headset Model and/or type reference ................... . X-Audio-i Standards ................... . 47 CFR FCC Part 15 Subpart C 15.247 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ................................. . Date (s) of performance of tests ... . Aug. 23, 2024 ~ Sept. 03, 2024 Date of Issue ................................. Sept. 03, 2024 Test Result ..................................... Pass Testing Engineer : (Len Liao) Technical Manager : (Sliver Wan) Authorized Signatory : (Jason Zhou) Page 3 of 53 Report No.: HK2408234866-1E Table of Contents Page 1. Summary ........................................................................................................................................................ 5 1.1. Test Standards ......................................................................................................................................... 5 1.2. Test Description ....................................................................................................................................... 5 1.3. Information of the Test Laboratory ........................................................................................................... 6 1.4. Statement of the Measurement Uncertainty ............................................................................................ 6 2. General Information ....................................................................................................................................... 7 2.1. Environmental Conditions ........................................................................................................................ 7 2.2. General Description of EUT ..................................................................................................................... 7 2.3. Description of Test Modes and Test Frequency ....................................................................................... 8 2.4. Equipments Used During the Test ........................................................................................................... 9 2.5. Related Submittal(S) / Grant (S) ............................................................................................................ 10 2.6. Modifications .......................................................................................................................................... 10 2.7. Description of Test Setup ....................................................................................................................... 10 2.8. Description of Support Units .................................................................................................................. 11 3. Test Conditions and Results ...................................................................................................................... 12 3.1. Conducted Emissions Test .................................................................................................................... 12 3.2. Radiated Emissions and Band Edge ..................................................................................................... 15 3.3. Maximum Peak Conducted Output Power ............................................................................................ 26 3.4. 20db Bandwidth ..................................................................................................................................... 27 3.5. Frequency Separation ........................................................................................................................... 31 3.6. Number of Hopping Frequency ............................................................................................................. 33 3.7. Time of Occupancy (Dwell Time) ........................................................................................................... 35 3.8. Out-of-Band Emissions .......................................................................................................................... 39 3.9. Pseudorandom Frequency Hopping Sequence .................................................................................... 49 3.10. Antenna Requirement ............................................................................................................................ 50 4. Test Setup Photos of the EUT ...................…

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Page 33 of 53 Report No.: HK2408234866-1E 3.6. Number of Hopping Frequency Limit Frequency hopping systems in the 2400–2483.5 MHz band shall use at least 15 channels. Test Procedure The transmitter output was connected to the spectrum analyzer through an attenuator. Set spectrum analyzer start 2400MHz to 2483.5MHz. Test Configuration EUT SPECTRUM ANALYZER Test Results Modulation Number of Hopping Channel Limit Result GFSK 79 ≥15 Pass π/4DQPSK 79 8DPSK 79 Test plot as follows: Page 34 of 53 Report No.: HK2408234866-1E GFSK Modulation π/4DQPSK Modulation 8DPSK Modulation Page 35 of 53 Report No.: HK2408234866-1E 3.7. Time of Occupancy (Dwell Time) Limit The average time of occupancy on any channel shall not be greater than 0.4 seconds within a period of 0.4 seconds multiplied by the number of hopping channels employed. Test Procedure The transmitter output was connected to the spectrum analyzer through an attenuator. Set center frequency of spectrum analyzer=operating frequency with 1MHz RBW and 3MHz VBW, Span 0Hz. Test Configuration EUT SPECTRUM ANALYZER Test Results Modulation Packet Pulse time (ms) Dwell time (second) Limit (second) Result GFSK DH1 0.400 0.128 0.40 PASS DH3 1.657 0.265 DH5 2.906 0.310 π/4DQPSK 2-DH1 0.410 0.131 0.40 PASS 2-DH3 1.663 0.266 2-DH5 2.911 0.311 8DPSK 3-DH1 0.410 0.131 0.40 PASS 3-DH3 1.661 0.266 3-DH5 2.912 0.311 Note: 1. We have tested all mode at high, middle and low channel, and recoreded worst case at middle channel. 2. Dwell time=Pulse time (ms) × (1600 ÷ 2 ÷ 79) ×31.6 Second for DH1, 2-DH1, 3-DH1 Dwell time=Pulse time (ms) × (1600 ÷ 4 ÷ 79) ×31.6 Second for DH3, 2-DH3, 3-DH3 Dwell time=Pulse time (ms) × (1600 ÷ 6 ÷ 79) ×31.6 Second for DH5, 2-DH5, 3-DH5 Test plot as follows: Page 36 of 53 Report No.: HK2408234866-1E GFSK Modulation DH1 DH3 DH5 Page 37 of 53 Report No.: HK2408234866-1E π/4DQPSK Modulation 2-DH1 2-DH3 2-DH5 Page 38 of 53 Report No.: HK2408234866-1E 8DPSK Modulation 3-DH1 3-DH3 3-DH5 Page 39 of 53 Report No.: HK2408234866-1E 3.8. Out-of-Band Emissions Limit In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF con-ducted or a radiated measurement, pro-vided the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter com-plies with the conducted power limits based on the use of RMS averaging over a time interval, as permitted under paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. Attenuation below the general limits specified in §15.209(a) is not required. In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated device is operating, the RF power that is produced shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF conducted or a radiated measurement, provided that the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted power limits based on the use of root-mean-square averaging over a time interval, as permitted under Section 5.4(4), the attenuation required shall be 30 dB instead of 20 dB. Attenuation below the general field strength limits specified in RSS-Gen is not required. Test Procedure Connect the transmitter output to spectrum analyzer using a low loss RF cable, and set the spectrum analyzer to RBW=100 kHz, VBW= 300 kHz, peak detector , and max hold. Measurements utilizing these setting are made of the in-band reference level, band edge and out-of-band emissions. Test Configuration EUT SPECTRUM ANALYZER Test Results Remark: The measurement frequency range is from 30MHz to the 10th harmonic of the fundamental frequency. The lowest, middle and highest channels are tested to verify the spurious emissions and bandage measurement data. We measured all conditions (DH1, DH3, DH5) and recorded worst case at DH5, 2DH5 and 3DH5. Test plot as follows: Page 40 of 53 Report No.: HK2408234866-1E GFSK CH00 CH39 Page 41 of 53 Report No.: HK2408234866-1E CH78 Page 42 of 53 Report No.: HK2408234866-1E Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Page 43 of 53 Report No.: HK2408234866-1E π/4DQPSK CH00 CH39 Page 44 of 53 Report No.: HK2408234866-1E CH78 Page 45 of 53 Report No.: HK2408234866-1E Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Page 46 of 53 Report No.: HK2408234866-1E 8DPSK CH00 CH39 Page 47 of 53 Report No.: HK2408234866-1E CH78 Page 48 of 53 Report No.: HK2408234866-1E Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Page 49 of 53 Report No.: HK2408234866-1E 3.9. Pseudorandom Frequency Hopping Sequence TEST APPLICABLE For 47 CFR Part 15C section 15.247 (a) (1): Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hop-ping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400–2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 125 mW. The system shall hop to channel frequencies that are selected at the system hopping rate from a pseudo randomly ordered list of hopping frequencies. Each frequency must be used equally on the average by each transmitter. The system receivers shall have input bandwidths that match the hop-ping channel bandwidths of their c…

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