2BBM2-ESA-36Portable Speaker

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Section Company n Address: R Guangning Product N a FCC ID: 2B Model(s): E SY-0601T, SY-2601T, SY-0809T, SY-0820T, SY-2801T, SY-1272D W 2.911(d)(5 ) We, [GUA N for which a  Pro  Ide n Yours sinc e Name: Man Title: Direc t Company n Signature: NOTE 1 “Covered List https://www.f c References; 1) 986446 D 0 https://apps.fc 2) Federal Re https://www.fe munications-s GUAN 2.911(d) name: GUA Room 309, 3 county, Chi ame: Portab BBM2-ESA- ESA-36, ES S Y-0603T, S SY-2605T, S Y-0808T, S Y-0821T, S Y-2802T, W, SY-1273 )(i) Equipm NGDONG S uthorization hibited from ntified as an erely, nda Chen tor name: GUA ”; is the List o cc.gov/supplyc 01 Covered Eq cc.gov/oetcf/kd egister docume ederalregister. supply-chain-t NGDONG )(5)(i) Ce ANGDONG S 3rd floor, R& ina ble Speaker -36 A-30, ESA - SY-0608T, S SY-2602T, S SY-0810T, S SY-0826T, S SY-2803T, S DW, SY-12 ment Type SAUEY TEC n is sought t m receiving n equipmen ANGDONG S of Equipment a chain/covered quipment v01 db/forms/FTS ent 2022-2826 gov/documen hrough-the G SAUE ertificatio SAUEY TEC &D Building r -40, SY-251 SY-0609T2 SY-2603T, S SY-0812T, S SY-0827T, S SY-2807T, S 75DW, SY- CHNOLOGY through cer an equipme nt type in the SAUEY TE and Services C list SearchResul t 63 published o nts/2023/02/06 EY TECH on – Equi CHNOLOG , Zengkuan 2T, SY-251 , S Y-0609T SY-0801T, S SY-0813T, S SY-0817T, S SY-2806T, S 1276DW, S Y CO., LTD. rtification is ent authoriz e “Covered CHNOLO G Covered By S tPage.cfm?sw on 02/06/23 6/2022-28263/ HNOLO 2. ipment T GY CO., LTD n Village Co 1T, S Y-251 T3, SY-0607 SY-0838T, S SY-0816T, S SY-0832T, S SY-2808T, S SY-1202T .] (“the appl not: zation pursu List” NOTE 1 Date: GY CO., LTD ection 2 of Th witch=P&id=32 /protecting-ag OGY CO 911 (d)(5)(i) Eq Type D. mmittee L o 0T, SY-040 T, S Y-0611T SY-0802T, S SY-0815T, S SY-0829D, SY-2809T, S icant”) certi uant to § 2.9 Jul. 25, 202 D. e Secure Netw 5672 ainst-national - ., LTD. quipment Type A ot, Hengsha 6T, S Y-060 T, SY-0660T SY-0806T, S SY-0818T, S SY-0830D, SY-1201T, S ify that the e 903; of the F 23 works Act, ava -security-threa Attestation v1.2 n Town, 5T, T, SY-0661T SY-0805T, SY-0819T, S Y-0831D, SY-1270DW equipment FCC rules. ailable at ats-to-the-com 2 T, , W, m

Section Company n Address: R Guangning Product N a FCC ID: 2B Model(s): E SY-0601T, SY-2601T, SY-0809T, SY-0820T, SY-2801T, SY-1272D W 2.911(d)(5 ) We, [GUAN of the filing 2 ,establishe equipment. Yours sinc e Name: Man Title: Direc t Company n Signature: NOTE 1 Delete option NOTE 2 “Covered List https://www.f c References; 1) 986446 D 0 https://apps.fc 2) Federal Re https://www.fe munications-s GUAN 2.911(d) name: GUA Room 309, 3 county, Chi ame: Portab BBM2-ESA- ESA-36, ES S Y-0603T, S SY-2605T, S Y-0808T, S Y-0821T, S Y-2802T, W, SY-1273 )(ii) Applica NGDONG S of the appl ed pursuant erely, nda Chen tor name: GUA not applicable ”; is the List o cc.gov/supplyc 01 Covered Eq cc.gov/oetcf/kd egister docume ederalregister. supply-chain-t NGDONG )(5)(ii) Ce ANGDONG S 3rd floor, R& ina ble Speaker -36 A-30, ESA - SY-0608T, S SY-2602T, S SY-0810T, S SY-0826T, S SY-2803T, S DW, SY-12 ant filing SAUEY TEC ication, the t to §1.5000 ANGDONG S e to this applic of Equipment a chain/covered quipment v01 db/forms/FTS ent 2022-2826 gov/documen hrough-the G SAUE ertificatio SAUEY TEC &D Building r -40, SY-251 SY-0609T2 SY-2603T, S SY-0812T, S SY-0827T, S SY-2807T, S 75DW, SY- CHNOLOGY applicant is 02 of this ch SAUEY TE cation. and Services C list SearchResul t 63 published o nts/2023/02/06 EY TECH on – App CHNOLOG , Zengkuan 2T, SY-251 , S Y-0609T SY-0801T, S SY-0813T, S SY-0817T, S SY-2806T, S 1276DW, S Y CO., LTD. s not ident hapter, as a CHNOLO G Covered By S tPage.cfm?sw on 02/06/23 6/2022-28263/ HNOLO plicant (C GY CO., LTD n Village Co 1T, S Y-251 T3, SY-0607 SY-0838T, S SY-0816T, S SY-0832T, S SY-2808T, S SY-1202T .] (“the appl ified NOTE 1 o n entity pro Date: GY CO., LTD ection 2 of Th witch=P&id=32 /protecting-ag OGY CO 2.911 (d)(5 Covered L D. mmittee L o 0T, SY-040 T, S Y-0611T SY-0802T, S SY-0815T, S SY-0829D, SY-2809T, S icant”) certi n the “Cove ducing cove Jul. 25, 202 D. e Secure Netw 5672 ainst-national - ., LTD. 5)(ii) Applicant A List ) ot, Hengsha 6T, S Y-060 T, SY-0660T SY-0806T, S SY-0818T, S SY-0830D, SY-1201T, S ify that, as o ered List” NOT ered comm 23 works Act, ava -security-threa Attestation v1.3 n Town, 5T, T, SY-0661T SY-0805T, SY-0819T, S Y-0831D, SY-1270DW of the date TE unications ailable at ats-to-the-com 3 T, , W, m

Co m Ad d Gua Pr o Mo d 0605 SY-0 SY-0 SY-0 SY-0 SY- Pr o We act We an d issu our Sig Na m Title Com mpany: GU dress: Room angningcount oduct Name del Numbe 5T, SY-0601 0661T, SY-2 0805T, SY-0 0819T, SY-0 0831D, SY-2 1270DW, SY oduct Desc authorize M on our beha declare tha d certificatio ues concern behalf shal nature: me: e: mpany: GUAN ANGDONG m 309, 3rd flo ty, China e: Portable S er(s): ESA- 1T, SY-0603 2601T, SY-26 0809T, SY-08 0820T, SY-08 2801T, SY-2 Y-1272DW, S ription: Por MiCOM Lab alf on all ma at MiCOM L n of equipm ning the app ll have the s Manda Che Director GUANGDO NGDONG S Agen SAUEY TEC oor, R&D Bu Speaker 36, ESA-30 3T, SY-0608T 605T, SY-26 808T, SY-08 821T, SY-08 802T, SY-28 SY-1273DW, rtable Speak bs Inc., 575 atters conce Labs Inc. is ment to the r proval applic same effect en ONG SAUEY SAUEY TE nt Auth CHNOLOGY uilding, Zeng , ES A-40, S T, SY-0609T 602T, SY-260 810T, SY-08 826T, SY-082 803T, SY-28 , SY-1275DW ker Boulder C o erning the c allowed to f regulatory a cation. Any t as acts of Y TECHNOLO ECHNOLO horizat Y CO., LTD. kuan Village SY-2512T, S T2, SY-0609 03T, SY-080 12T, SY-081 27T, SY-081 07T, SY-28 0 W, SY-1276D ourt, Pleasa certification forward all i agencies as and all acts our own. OGY CO., L OGY CO., L tion Committee SY-2511T, S T3, SY-060 7 01T, SY-0838 13T, SY-0816 7T, SY-0832 06T, SY-2808 DW, SY-1202 anton, Califo of above na information s required a s carried ou Date: TD. LTD. Lot, Hengsh Y-2510T, S Y 7T, SY-0611 8T, SY-0802 6T, SY-0815 2T, SY-0829 8T, SY-2809 2T ornia 94566 amed equip related to t nd to discu ut by MiCOM Jul. 25, 202 an Town, Y-0406T, SY T, SY-0660T 2T, SY-0806T 5T, SY-0818T D, SY-0830D 9T, SY-1201T 6, USA, to pment. the approva ss any M Labs on 23 Y- T, T, T, D, T, al

Office o Federa 7435 O Columb USA Subjec t FCC ID To Wh o Pursua are req u docume These d propriet might b In addi t in Title busine s authoriz For 4 O For 1 It is ou r corresp docume authoriz Sincer e Signatu Name: Title: D i GUA of Engineeri l Communic Oakland Mills bia, MD 210 t; Request f D: 2BBM2-E om It May C nt to the pro uesting the ents from pu documents tary informa be harmful to Schemat Block Di Parts Lis Operatio tional to abo 47 CFR §2 ss sensitive zed devices External Test Set Internal P User Ma 45 days, pu OR 180 days pu r understand pondence du ents and thi zation is iss ely, ure: Manda Ch e irector NGDON ing Techno cations Com s Road 046 for Confiden ESA-36 Concern, ovisions of t Commissio ublic disclos contain det ation in ope o our comp tic Diagram agram st onal Descrip ove mention .803 and th informatio n s, we reque Photos tup Photos Photos anual rsuant to P u ursuant to K ding that all uring the ce s informatio sued. en NG SAU logy mmission ntiality the Commis on to withho sure indefin tailed syste ration of th e any and wo m ption ned docume e importatio n remains c st Short Te ublic Notice KDB 72692 l measurem ertification re on will be av UEY TEC ssion’s rule old the follow nitely. m and equi e equipmen ould give co ents, in orde on rules in T confidential rm Confide e DA 04-170 0 D01. ment test rep eview proce vailable for CHNOLO s Title 47 S wing attach pment desc nt. The publ ompetitors a er to comply Title 47 CFR until the act ntiality of th 05. ports, FCC ess cannot public revi e OGY CO Sections §0. hment(s) as criptions an ic disclosu r an unfair ad y with the m R §2.1204, tual market he following ID label for be granted ew once the O., LTD. Date: Jul. 2 457 and §0 confidentia d are consi re of these d vantage in marketing re while ensu ting of newly attachmen mat and as confide n e grant of eq . 25, 2023 0.459, we al dered as documents the market . egulations ring that y t(s); ntial quipment .

To W We, ES A 0608 SY-2 SY-0 SY-0 SY-2 1273 are t Test Ple a Sig Na m Title G Whom It May GUANGDO A-30, ESA-40 8T, SY-0609 2602T, SY-2 0810T, SY-0 0826T, SY-0 2803T, SY-2 3DW, SY-12 the same, on t sample mo ase contact m nature: me: M e: D GUANGD Mo y Concern, ONG SAUEY 0, SY-2512T 9T2, SY-0609 2603T, SY-08 0812T, SY-08 0827T, SY-08 2807T, SY-28 275DW, SY-1 nly with a pro del: ESA-36 me if you hav Manda Chen Director DONG SA odel Di TECHNOLO , SY-2511T, 9T3, SY-060 801T, SY-08 813T, SY-08 817T, SY-08 806T, SY-28 1276DW, SY oduct color a . ve any quest n AUEY TE fferenc OGY CO., LT SY-2510T, S 07T, SY-0611 838T, SY-080 816T, SY-081 832T, SY-082 808T, SY-280 Y-1202T; All m and model na tion. ECHNOL ce Dec TD. (Portable SY-0406T, S 1T, SY-0660 02T, SY-080 15T, SY-081 29D, SY-083 09T, SY-120 model’s the f amed differen LOGY CO claratio e Speaker) ; M SY-0605T, SY T, SY-0661T 6T, SY-0805 8T, SY-0819 30D, SY-083 1T, SY-1270 function, soft nt. Date: O., LTD. on Model Numb Y-0601T, SY T, SY-2601T 5T, SY-0809T 9T, SY-0820T 31D, SY-280 0DW, SY-127 tware and el Jul. 25, 20 ber: ESA-36, Y-0603T, SY , SY-2605T, T, SY-0808T T, SY-0821T 1T, SY-2802 72DW, SY- ectric circuit 23 - T, T, 2T,

Annex A External Photos Report No.:HK2306082408-E Page 1 of 3 Report No.:HK2306082408-E Page 2 of 3 Report No.:HK2306082408-E Page 3 of 3

FCC ID LABEL: Ca. 20mm x 20mm Label Location FCC ID: 2BBM2‐ESA‐36

Annex B Internal Photo Report No.:HK2306082408-E Page 1 of 3 Report No.:HK2306082408-E Page 2 of 3 Antenna Report No.:HK2306082408-E Page 3 of 3

FCC RF Exposure EUT Description: Portable Speaker Model No.: ESA-36 FCC ID: 2BBM2-ESA-36 1. Limits According to KDB 447498 D04 General RF Exposure Guidance v01 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)]·[√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 Output power (dBm) Tune Up Power (dBm) Max Tune Up power dBm/mW Min test separati on distance mm ResultLimit SAR Test Exclusion EDR -7.05 -7±1(-6) 0.251 5 0.0793.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2306082408-E, antenna gain=4.51dBi Per KDB 447498 D04, 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 0.079 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)] ·[√f (GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

AntennaDescribe 1 ： AntennaDescribe AntennaPCB AntennaGain Frequency 4.5121dBi Range2.4Ghz-2.483Ghz ConnectorTypeDirect Locationofmearement(company name) SHENZHENSHIXINZHONGXI N TECHNOLOGY.CO.,LTD 2 ： ExternalViewDrawing Pictureofantenna 3 ： MeasurementResult 3.1ReturnLoss(S11) 3.2SmithChart 3.3Gain

Page 1 of 53 Report No.: HK2306082408-E FCC Test Report FCC PART 15 SUBPART C 15.247 Test report On Behalf of GUANGDONG SAUEY TECHNOLOGY CO., LTD. For Portable Speaker Model No.: ESA-36, ESA-30, ESA-40, SY-2512T, SY-2511T, SY-2510T, SY-0406T, SY-0605T, SY-0601T, SY-0603T, SY-0608T, SY-0609T2, SY-0609T3, SY-0607T, SY-0611T, SY-0660T, SY-0661T, SY-2601T, SY-2605T, SY-2602T, SY-2603T, SY-0801T, SY-0838T, SY-0802T, SY-0806T, SY-0805T, SY-0809T, SY-0808T, SY-0810T, SY-0812T, SY-0813T, SY-0816T, SY-0815T, SY-0818T, SY-0819T, SY-0820T, SY-0821T, SY-0826T, SY-0827T, SY-0817T, SY-0832T, SY-0829D, SY-0830D, SY-0831D, SY-2801T, SY-2802T, SY-2803T, SY-2807T, SY-2806T, SY-2808T, SY-2809T, SY-1201T, SY-1270DW, SY-1272DW, SY-1273DW, SY-1275DW, SY-1276DW, SY-1202T FCC ID: 2BBM2-ESA-36 Prepared For : GUANGDONG SAUEY TECHNOLOGY CO., LTD. Room 309, 3rd floor, R&D Building, Zengkuan Village Committee Lot, Hengshan Town, Guangningcounty, 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: Jun. 08, 2023 ~ Jul. 17, 2023 Date of Report: Jul. 17, 2023 Report Number: HK2306082408-E Page 2 of 53 Report No.: HK2306082408-E Test Result Certification Applicant’s name ....... GUANGDONG SAUEY TECHNOLOGY CO., LTD. Address ....................... . Room 309, 3rd floor, R&D Building, Zengkuan Village Committee Lot, Hengshan Town, Guangningcounty, China Manufacture's Name . . GUANGDONG SAUEY TECHNOLOGY CO., LTD. Address ........................ Room 309, 3rd floor, R&D Building, Zengkuan Village Committee Lot, Hengshan Town, Guangningcounty, China Product description Trade Mark: N/A Product name ................ Portable Speaker Model and/or type reference ................... . ESA-36, ESA-30, ESA-40, SY-2512T, SY-2511T, SY-2510T, SY-0406T, SY-0605T, SY-0601T, SY-0603T, SY-0608T, SY-0609T2, SY-0609T3, SY-0607T, SY-0611T, SY-0660T, SY-0661T, SY-2601T, SY-2605T, SY-2602T, SY-2603T, SY-0801T, SY-0838T, SY-0802T, SY-0806T, SY-0805T, SY-0809T, SY-0808T, SY-0810T, SY-0812T, SY-0813T, SY-0816T, SY-0815T, SY-0818T, SY-0819T, SY-0820T, SY-0821T, SY-0826T, SY-0827T, SY-0817T, SY-0832T, SY-0829D, SY-0830D, SY-0831D, SY-2801T, SY-2802T, SY-2803T, SY-2807T, SY-2806T, SY-2808T, SY-2809T, SY-1201T, SY-1270DW, SY-1272DW, SY-1273DW, SY-1275DW, SY-1276DW, SY-1202T 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 ... . Jun. 08, 2023 ~ Jul. 17, 2023 Date of Issue ................................. Jul. 17, 2023 Test Result ..................................... Pass Prepared by: Project Engineer Reviewed by: Project Supervisor Approved by: Technical Director Page 3 of 53 Report No.: HK2306082408-E 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) .............................................................................................................. 9 2.6. Modifications ............................................................................................................................................ 9 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 .............................................................................…

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Page 35 of 53 Report No.: HK2306082408-E 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 0.41 0.131 0.40 PASS DH3 1.67 0.267 DH5 2.92 0.311 π/4DQPSK 2-DH1 0.42 0.134 0.40 PASS 2-DH3 1.67 0.267 2-DH5 2.92 0.311 8DPSK 3-DH1 0.42 0.134 0.40 PASS 3-DH3 1.67 0.267 3-DH5 2.92 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.: HK2306082408-E GFSK Modulation DH1 DH3 DH5 Page 37 of 53 Report No.: HK2306082408-E π/4DQPSK Modulation 2-DH1 2-DH3 2-DH5 Page 38 of 53 Report No.: HK2306082408-E 8DPSK Modulation 3-DH1 3-DH3 3-DH5 Page 39 of 53 Report No.: HK2306082408-E 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.: HK2306082408-E GFSK CH00 CH39 Page 41 of 53 Report No.: HK2306082408-E CH78 Page 42 of 53 Report No.: HK2306082408-E 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.: HK2306082408-E π/4DQPSK CH00 CH39 Page 44 of 53 Report No.: HK2306082408-E CH78 Page 45 of 53 Report No.: HK2306082408-E 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.: HK2306082408-E 8DPSK CH00 CH39 Page 47 of 53 Report No.: HK2306082408-E CH78 Page 48 of 53 Report No.: HK2306082408-E 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.: HK2306082408-E 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 corresponding transmitters and shall shift frequencies in synchronization with the transmitted signals. EUT Pseudorandom Frequency Hopping Sequence Requirement The pseudorandom frequency hopping sequence may be generated in a nice-stage shift register whose 5 th and 9 th stage outputs are added in a modulo-two addition stage. And the result is fed back to the input of the first stage. The sequence begins with the first one of 9 consecutive ones, for example: the shift register is initialized with nine ones. ● Number of shift register stages:9 ● Length of pseudo-random sequence:29-1=511 bits ● L…

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Radiated Emissions Conducted Emission