Cover letter

FCC ID: POD-MDUV390

Cover Letter(s)

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FCCID_4106311

TT ELECTRONICS CO., LTD Add. Block 39—1, Optoelectronics—nformation industry base, Nan‘an, Quanzhou, Fujan, China Te +86—15250508756 Nov. 28, 2018 Attestation letter FEDERAL COMMUNICATIONS ConmIsSIONS Authorizalion and Eveluetion Division 7435 Oaldand Mils Road Columbia, MD 21048 EoC iD Pop—Mbuvseo Model number: MD—UV390 DearSiMedam, We, TYT ELECTRONICS CO., LTD, acknowledge that this device will not be marketed to USA users wih the frequency band which is not allowed by rule part 90.and itisa violation of FOC rulesi this device is operated on unauthorized frequencies inside the U.S.A. This equipment meets the requirements of he FCC Rules, Parts $9.203(e) and (a), as applicable. Programming of is products transmit frequencies can be performad ONLY by the manufacturer or by service or by maintenance personal The operator can‘t program transmtfrequiencies tsing the eqtipmant‘s extemmal operation controls Thisis to certfythat the requirements of 47 CFR Part90.203(}(4) and (6) spectrum effciency are met by the TYT ELECTRONICS CO., LTD as demonstrated by the tests conducted on the sample redio provided. The tests show that the 4FBK data rate is in accordancevwith ETSI TS 102 361—1, that is 9600 bits per second in a 12.6 kHz bandwidh to satisly the data rate requirement of 4800 bits per second per 6.26 kHz of channel bandwidth (ZKE0FXD emissions). Addfonally the Digital Portable Rado uses the AMBE+2 half—rate vocoder to compress 60 ms of normal bursts are sent in altemate 30 ms TDMA slots and so comply wih the equivalence of one voice channel per 6.25 kHz bandwidth (7KBOFXW emission}. Aditionall the redio also meets the requirement of one voice channel per 128kHz of channel bandwidth for analogue speech (11kOF8E ermission}. Sincerely *3 , p \ J1i4 7‘/@1 U tm TYT ELECTRONICS CO., LTD Contact person: diamao Lin Tite: Manager


Document Created: 2018-11-28 17:25:43
Document Modified: 2018-11-28 17:25:43
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