FHSS Description letter

FCC ID: ZVA15

Cover Letter(s)

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FCCID_4508253

TCL Technoly Bloctrontes (Miizhor) Co., Ltd. Section 31. Mgkai Migh—tech Dovelopment Zomm, Haishes City, Ouing Dong Province, china s1ewe Tels serssacmo Faw sersessence Prodict name: Wireless Module Prodict model: TWM—CC3520 ree ip:Zva1s 18 channels are provided to this EUT cramet] rnea. T)52) |onmammer] rneo. los |omanntt] rea. fipe) |OHARMEL] rnea. Tigge) : zim & zaze m Em is 2sse z Exu 7 zio IB zio i Em s zis s 2ase is ziss is zare a zue s zie m Base s Baze To 2oz is Bz Hooping Sequence 08. Is. 04. 12. 01. 09. 17. 0s, 14. 03. 11. 07. 15. 2. 10. 18. 08. 13 Coordination ofhopping sequences to other transmitters "This ransmiter does not have the abilty of being eaordinated with other FHSS system for as soon asthe tansiniter is in operation,the bopping frequency will fllow the seleaed hopping sequence to transmitindependendly and no coordination is possible System Receiver Hopping Copabi There ate twe seps to make the receiver to shif the requencies in synchronization with the transmited signals: First, the Transmiter will emit a preamble signalof SDms and thereceiver will scan this signalby 2ms sweeping until te preamile signal is caught. Second, the peamclesignalis coded with tte information of hopping sequence and the next tansmiting Requney, so the receiver will be able to shiftthe eceiving Requencies in synchronization with the tansmited signals Equal Hopplng Frequency Use Due to each bopping frequency will betranstnited in accordance to the frequency tables described abeve,thereis no any Requeney will e able to hap more tmes than others Therefore each Requency will be used equally E,fl ednt Contact persen / Weirun Peng Address: Section 07, Chonglad Higt—tech Developrent Zons, Histou City, Goang Done Erovince, China 510000


Document Created: 2019-11-08 09:13:43
Document Modified: 2019-11-08 09:13:43
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