Spectrum Efficiency

FCC ID: STZSRMA9000TU

Cover Letter(s)

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FCCID_1860251

Timco Engineering Inc 849 N.W. State Road 45 PO Box 370 ComGroup Australia Pty Ltd Newberry ABN 29 095 068 429 www.comgroup.net.au Florida 32669 1270 Ferntree Gully Rd, Scoresby Victoria 3179, Australia Tel: +61 3 9730 3800 Fax: +61 3 9730 3968 Email: bstowell@comgroup.net.au Ref: Re: STZSRMA9000TU: 47 CFR Part 90.203(j)(3) 29 October 2012 Compliance To Whom It May Concern: This is to certify that the requirements of 47 CFR Part 90.203(j)(3) spectrum efficiency standard of one voice channel per 12.5kHz of channel bandwidth are met by the STZSRMA9000TU mobile radio as demonstrated by the tests conducted on the sample radio provided (11k0F3E emission). Additionally in this sample, the C4FM data rate is in accordance with TIA-102, that is 9600 bits per second in a 12.5kHz channel bandwidth, therefore the STZSRMA9000TU transmitted data satisfies the requirement of 4800 bits per second per 6.25kHz of channel bandwidth for 8K10F1E and 8K10F1D emissions. Yours sincerely, Robert Stowell Senior Engineer Form Number: FN0024_0 Page 1 of 1 Filename: H:\Standards\FCC\SRM9000 FCC_IC\SRM9000TU Rev 10\STZSRMA9000TU Series 2 Exhibits Word\FCC_SRM9000TU Series 2_Spectrum_Efficiency_Timco.doc


Document Created: 2012-10-29 15:52:14
Document Modified: 2012-10-29 15:52:14
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