2BKP2-SPKM1Spokeo-mic

Section Company n Address: 60 Product Na FCC ID: 2B Model(s): s 2.911(d)(5 ) We, [ AUDIO through cer  Pro  Ide n Yours sinc e Name: Mic h Title: Man a Company n Signature: NOTE 1 “Covered List https://www.f c References; 1) 986446 D 0 https://apps.fc 2) Federal R e https://www.fe munications-s 2.911(d) name: AUD 0 rue de Fo ame: Spoke BKP2-SPKM spkm1 )(i) Equipm OME S.A.S rtification is hibited fro m ntified as an erely, hael Uzzan ager name: AUD ” ; is the List o cc.gov/supplyc 01 Covered Eq cc.gov/oetcf/kd egister docume ederalregister. supply-chain-t )(5)(i) Ce IOME S.A.S ontenay, 923 o-mic M1 ment Type S] (“the appl not: m receiving n equipmen IOME S.A. S of Equipment a chain/covered quipment v01 db/forms/FTS ent 2022-2826 gov/documen hrough-the AUD ertificatio S 350 Le Ples icant”) certi an equipm e nt type in the S and Services C list SearchResul t 63 published o nts/2023/02/06 DIOME S on – Equi ssis-Robins fy that the e ent authoriz e “Covered Covered By S tPage.cfm?sw on 02/06/23 6/2022-28263/ S.A.S 2. ipment T on, France equipment f zation pursu List” NOTE 1 D ection 2 of Th witch=P&id=32 /protecting-ag 911 (d)(5)(i) Eq Type for which au uant to § 2.9 Date: Sept. 0 e Secure Netw 5672 ainst-national - quipment Type A uthorization 903; of the F 05, 2024 works Act, ava -security-threa Attestation v1.2 n is sought FCC rules. ailable at ats-to-the-com 2 m

Section Company n Address: 60 Product Na FCC ID: 2B Model(s): s 2.911(d)(5 ) We, [AUDIO applicant is chapter, as Yours sinc e Name: Mic h Title: Man a 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 R e https://www.fe munications-s 2.911(d) name: AUD 0 rue de Fo ame: Spoke BKP2-SPKM spkm1 )(ii) Applica OME S.A.S s not identi an entity p erely, hael Uzzan ager name: AUD not applicable ”; is the List o cc.gov/supplyc 01 Covered Eq cc.gov/oetcf/kd egister docume ederalregister. supply-chain-t )(5)(ii) Ce IOME S.A.S ontenay, 923 o-mic M1 ant filing S] (“the appl fied NOTE 1 on roducing co IOME S.A. S e to this applic of Equipment a chain/covered quipment v01 db/forms/FTS ent 2022-2826 gov/documen hrough-the AUD ertificatio S 350 Le Ples icant”) certi n the “Cove overed com S cation. and Services C list SearchResul t 63 published o nts/2023/02/06 DIOME S on – App ssis-Robins fy that, as o ered List” NOT mmunication Covered By S tPage.cfm?sw on 02/06/23 6/2022-28263/ S.A.S plicant (C on, France of the date o TE 2 , establis s equipmen D ection 2 of Th witch=P&id=32 /protecting-ag 2.911 (d)(5 Covered L of the filing shed pursua nt. Date: Sept. 0 e Secure Netw 5672 ainst-national - 5)(ii) Applicant A List ) of the appli ant to §1.50 05, 2024 works Act, ava -security-threa Attestation v1.3 ication, the 0002 of this ailable at ats-to-the-com 3 m

AUDIOMES.A.S 2.911(d)(7)USAAgentv1.3 Section2.911(d)(7)USAAgentforServiceofProcess Companyname:AUDIOMES.A.S Address:60ruedeFontenay,92350LePlessis-Robinson,France ProductName:Spokeo-mic FCCID:2BKP2-SPKM1 Model(s):spkm1 2.911(d)(7)USADesignatedAgentforServiceofProcess We,[AUDIOMES.A.S](“theapplicant”)designate[USAMEIHUATRADINGINC] NOTE1 forthepurposeofacceptingserviceofprocessonbehalfoftheapplicant. Applicantconsent:WeAcknowledgeourconsenttoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddressofthedesignatedagentandacknowledgeour acceptanceofourobligationtomaintainanagentforserviceofprocessintheUnited Statesfornolessthanoneyearaftereitherthegranteehaspermanentlyterminated allmarketingandimportationoftheapplicableequipmentwithintheU.S.,orthe conclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolving theequipment,whicheverislater. Agentobligation:WeAcknowledgeourobligationtoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipmentatourphysicalU.S. addressandemailaddressfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipment withintheU.S.,ortheconclusionofanyCommission-relatedadministrativeorjudicial proceedinginvolvingtheequipment,whicheverislater. AUDIOMES.A.S 2.911(d)(7)USAAgentv1.3 USAAgent Companyname:USAMEIHUATRADING INC Address:5379PineValleyCtBoulderCO 80301UnitedStates FRNNumber:0033406166 ContactName:HarleyQuinn TelephoneNo:1-312-363-9424 Email:[email protected] Applicant Companyname:AUDIOMES.A.S Address:60ruedeFontenay,92350Le Plessis-Robinson,France FCCRegistrationNumber(FRN): 0035886688 FCCGranteeCode:2BKP2 ContactName:MichaelUzzan TelephoneNo:33(0)140830032 Email:[email protected] Signature: Title:manager Signature: Title:Manager Date:Sept.05,2024Date:Sept.05,2024 NOTE1:AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforservice ofprocess. Reference;FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

Co m Ad d Pr o Mo d Pr o We act We an d issu our Sig Na m Title Com mpany: AU dress: 60 ru oduct Name del Numbe oduct Desc authorize M on our beha declare tha d certificatio ues concern behalf shal nature: me: e: mpany: DIOME S.A. ue de Fonten e: Spokeo-m er(s): spkm1 ription: Spo MiCOM Lab alf on all ma at MiCOM L n of equipm ning the app ll have the s Michael Uz Manager AUDIOME Agen S nay, 92350 L mic okeo-mic bs Inc., 575 atters conce Labs Inc. is ment to the r proval applic same effect zzan S.A.S AUDIOME nt Auth e Plessis-Ro Boulder Co erning the c allowed to f regulatory a cation. Any t as acts of E S.A.S horizat obinson, Fran ourt, Pleasa certification forward all i agencies as and all acts our own. tion nce anton, Califo of above na information s required a s carried ou Date: ornia 94566 amed equip related to t nd to discu ut by MiCOM Sept. 05, 20 6, USA, to pment. the approva ss any M Labs on 024 al

Office o Federa 7435 O Columb USA Subject 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 Signat u Name: Title: M of Engineeri l Communic Oakland Mills bia, MD 210 t; Request f D: 2BKP2-SP 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 Tune-up 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: Michael U z anager ing Techno cations Com s Road 046 for Confiden PKM1 Concern, ovisions of t Commissio ublic disclos contain det ation in ope o our comp tic Diagram agram st onal Descrip Procedure 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. zzan AU 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 726920 l measurem ertification re on will be av DIOME 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 S.A.S 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 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 Date: Sept. 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 05, 2024 0.459, we al dered as documents the market . egulations ring that y t(s); ntial quipment .

FCC ID LABEL: Ca. 15mm x 10mm Label Location FCC ID: 2BKP2‐SPKM1

FCC RF Exposure EUT Description: Spokeo-mic Model No.: spkm1 FCC ID: 2BKP2-SPKM1 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)]·[√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 separation distance (mm) ResultLimit (mW/cm 2 ) SAR Test Exclusion 2480 6.46 6±1(7) 5.012 5 1.5793.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2407163923-E, antenna gain=2.09dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine RF Exposure test exclusion. The test exclusion threshold is 1.579 which is ≤ 3, RF Exposure 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

Approval sheet Page 1 of 9 ASC_RFECA3216060A1T_V08 April 2017 RFECA Series – RoHS Compliance CERAMIC ANTENNA Halogens Free Product 2.4 GHz ISM Band Working Frequency P/N: RFECA3216060A1T *Contents in this sheet are subject to change without prior notice. Approval sheet Page 2 of 9 ASC_RFECA3216060A1T_V08 April 2017 FEATURES 1. Surface Mounted Devices with a small dimension of 3.2 X 1.6 X 0.6 mm 3 meet future miniaturization trend. 2. LTCC process. 3. High stability in Temperature / Humidity Cha nge. 4. Superb performance to place on the middle of PCB edge and excellent peak/ average gain observed by field test applic ation. APPLICATIONS 1. ISM Band 2.4GHz applicati ons. 2. Bluetooth.. CONSTRUCTION DIMENSIONS Figure Symbol Dimension (mm) L 3.10 ± 0.20 W 1.60 ± 0.20 T 0.60 ± 0.10 A 0.25 ± 0.20 PINConnection 1Feeding 2 Soldering terminal Approval sheet Page 3 of 9 ASC_RFECA3216060A1T_V08 April 2017 SOLDER LAND PATTERN DESIGN Type-1: Empty Space 8.0mm x 3.0 mm Figure (Empty Space 8.0 mm x 3.0 mm) The limited size for ECA3 216 is L>30mm and D>6mm Land Pattern TYPE-1 TEST BOARD ELECTRONI C CHARACTERISTICS *Note 1. Central Frequency should be defined after customers’ application approval. Item Specification Working Frequency Range 2.4GHz~2.4835GHz (Note-1) Gain 2.09 dBi (Typical) VSWR2.0 max. PolarizationLinear Azimuth Beamwidth Omni-directional Impedance 50 Approval sheet Page 4 of 9 ASC_RFECA3216060A1T_V08 April 2017 Type-2: Empty Space 6.3mm x 4.0 mm Figure (Empty Space 6.3 mm x 4.0 mm) The limited size for ECA3 216 is L>30mm and D>6mm Land Pattern TYPE-2 TEST BOARD ELECTRONI C CHARACTERISTICS *Note 1. Central Frequency should be defined after customers’ application approval. Item Specification Working Frequency Range 2.4GHz~2.4835GHz (Note-1) Gain 2.09 dBi (Typical) VSWR2.0 max. PolarizationLinear Azimuth Beamwidth Omni-directional Impedance 50 Approval sheet Page 5 of 9 ASC_RFECA3216060A1T_V08 April 2017 Antenna on Type-1 Test Board ( Empty Space 8x3 mm &Thick ness 0.8mm) Antenna S1 1 on Type-1 Test Board Antenna VSWR on Type-1 Test Board 1.782 @ 2.40 GHz 1.328 @ 2.45 GHz 1.816 @ 2.50 GHz -11.0208 dB @ 2.40 GHz -17.0222 dB @ 2.45 GHz -10.7612 dB @ 2.50 GHz Approval sheet Page 6 of 9 ASC_RFECA3216060A1T_V08 April 2017 Antenna on Type-2 Test Board ( Empty Space 6.3x4 mm &Thick ness 0.8mm) Antenna S1 1 on Type-2 Test Board Antenna VSWR on Type-2 Test Board 1.453 @ 2.40 GHz 1.216 @ 2.45 GHz 1.732 @ 2.50 GHz -14.6741 dB @ 2.40 GHz -20.2120 dB @ 2.45 GHz -11.4374 dB @ 2.50 GHz Approval sheet Page 7 of 9 ASC_RFECA3216060A1T_V08 April 2017 RADIATION PATTERN Radiation Pattern and Gain were dependent on measurement board design. The specification of RFECA3216060A1T antenna was measured based on the PCB size and installation position as shown in the below figure Test Board. Antenna on Type-1 Test Board ZX plane ZY plane XY plane Frequency [MHz] Max Value [dB] Average [dB] Max Value [dB] Average [dB] Max Value [dB] Average [dB] 2400 0.29 -3.32 1.82 -0.51 1.49 -2.87 2450 0.55 -2.88 2.09 -0.21 1.95 -2.48 2500 -0.15 -3.44 1.82 -0.62 1.82 -2.73 Approval sheet Page 8 of 9 ASC_RFECA3216060A1T_V08 April 2017 Antenna on Type-2 Test Board ZX plane ZY plane XY plane Frequency [MHz] Max Value [dB] Average [dB] Max Value [dB] Average [dB] Max Value [dB] Average [dB] 2400 1.57 -2.83 1.95 -0.76 1.10 -2.93 2450 1.70 -2.62 2.02 -0.62 1.57 -2.61 2500 1.46 -2.82 1.90 -0.71 1.75 -2.68 Approval sheet Page 9 of 9 ASC_RFECA3216060A1T_V08 April 2017 RELIABILITY TEST Test item Test condition / Test method Specification Solderability JIS C 0050-4.6 JESD22-B102D *Solder bath temperature：235  5C *Immersion time：2  0.5 sec Solder：Sn3Ag0.5Cu for lead-free At least 95% of a surface of each terminal electrode must be covered by fresh solder. Leaching (Resistance to dissolution of metallization) IEC 60068-2-58 *Solder bath temperature：260  5C *Leaching immersion time：30  0.5 sec Solder : SN63A Loss of metallization on the edges of each electrode shall not exceed 25%. Resistance to soldering heat JIS C 0050-5.4 *Preheating temperature：120~150°C, 1 minute. *Solder temperature：2705C *Immersion time：101 sec Solder：Sn3Ag0.5Cu for lead-free Measurement to be made after keeping at room temperature for 242 hrs No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Loss of metallization on the edges of each electrode shall not exceed 25%. Drop Test JIS C 0044 Customer’s specification. *Height：75 cm *Test Surface：Rigid surface of concrete or steel. *Times：6 surfaces for each units；2 times for each side. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Vibration JIS C 0040 *Frequency：10Hz~55Hz~10Hz(1min) *Total amplitude：1.5mm *Test times：6hrs.(Two hrs each in three mutually perpendicular directions) No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Adhesive Strength of Termination JIS C 0051- 7.4.3 *Pressurizing force： 5N(≦0603)；10N(>0603) *Test time：10±1 sec No remarkable damage or removal of the termination. Approval sheet Page 10 of 9 ASC_RFECA3216060A1T_V08 April 2017 Bending test JIS C 0051- 7.4.1 The middle part of substrate shall be pressurized by means of the pressurizing rod at a rate of about 1 mm/s per second until the deflection becomes 1mm/s and then pressure shall be maintained for 51 sec. Measurement to be made after keeping at room temperature for 242 hours No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Temperature cycle JIS C 0025 1. 303 minutes at -40C3C, 2. 10~15 minutes at room temperature, 3. 303 minutes at +85C3C, 4. 10~15 minutes at room te…

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Page 1 of 53 Report No.: HK2407163923-E FCC Test Report Test Report On Behalf of AUDIOME S.A.S For Spokeo-mic Model No.: spkm1 FCC ID: 2BKP2-SPKM1 Prepared For: AUDIOME S.A.S 60 rue de Fontenay, 92350 Le Plessis-Robinson, France 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: Jul. 16, 2024 ~ Aug. 01, 2024 Date of Report: Aug. 01, 2024 Report Number: HK2407163923-E Page 2 of 53 Report No.: HK2407163923-E Test Result Certification Applicant’s Name .................. : AUDIOME S.A.S Address .................................. : 60 rue de Fontenay, 92350 Le Plessis-Robinson, France Manufacturer's Name ........... : GUANGDONG SHUOQIANG TECHNOLOGY CO.LTD Address .................................. : #9 Lianxin Road, Shangjiao Communication, Chang'an Town, Dongguan City, Guangdong Province, China Product Description Trade Mark ............................. : AUDIOME Product Name ......................... : Spokeo-mic Model and/or Type Reference : spkm1 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 .... . Jul. 16, 2024 ~ Aug. 01, 2024 Date of Issue .................................... Aug. 01, 2024 Test Result ........................................ Pass Testing Engineer Len Liao Technical Manager Sliver Wan Authorized Signatory Jason Zhou Page 3 of 53 Report No.: HK2407163923-E Table of Contents Page 1. Summary ................................................................................................................................... 5 1.1. Test Standards .......................................................................................................................................... 5 1.2. Test Description ....................................................................................................................................... 5 1.3. Test Facility .............................................................................................................................................. 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 ................................................................................................... 51 5. Photos of the EUT ..............................................................................................................…

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Page 39 of 53 Report No.: HK2407163923-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 and 3DH5 Test plot as follows: Page 40 of 53 Report No.: HK2407163923-E GFSK CH00 CH39 Page 41 of 53 Report No.: HK2407163923-E CH78 Page 42 of 53 Report No.: HK2407163923-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.: HK2407163923-E π/4DQPSK CH00 CH39 Page 44 of 53 Report No.: HK2407163923-E CH78 Page 45 of 53 Report No.: HK2407163923-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.: HK2407163923-E 8DPSK CH00 CH39 Page 47 of 53 Report No.: HK2407163923-E CH78 Page 48 of 53 Report No.: HK2407163923-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.: HK2407163923-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 ● Longest sequence of zeros:8(non-inverted signal) An example of pseudorandom frequency hopping sequence as follows: Each frequency used equally one the average by each transmitter. The system receiver have input bandwidths that match the hopping channel bandwidths of their corresponding transmitter and shift frequencies in synchronization with the transmitted signals. Page 50 of 53 Report No.: HK2407163923-E 3.10. Antenna Requirement Standard Applicable For intentional device, according to FCC 47 CFR Section 15.203, an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. And according to FCC 47 CFR Section 15.247, if transmitting antennas of directional gain greater than 6dBi are used, the power shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6dBi. Refer to Statement Below for Compliance. The manufacturer may design the unit so that the user can replace a broken antenna, but the use of a standard antenna jack or electrical connector is prohibited. Further, this requirement does not apply to intentional radiators that must be professionally installed. Antenna Connected Construction The antenna used in this product is a Ceramic Antenna, need professional installation, not easy to remove. It conforms to the standard requirements. The dire…

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