On Sun, Jul 27, 2008 at 4:10 PM, Lee A Crocker <[EMAIL PROTECTED]>wrote:
> Why a subcarrier? just make it the contest exchange Two reasons: (1) So it can be decoded automatically by a simple demod, rather than (say) an open-speaker-set voice transcription, by a program sucking in all available signals in the passband (2) So you only need to capture a partial transmission to get all the info -- say 80 bits at 300bps -> a little more then 1/4 second, repeatedly. out of any transmitted segment. The method is a little stickier when CW is involved :-) 73 Frank AB2KT -- Travelling by airplane in the US is nothing more than mass training of Americans to the requirements of the coming police state. The whole point is to make you learn to acquiesce without question, en masse, to completely absurd directives by dull functionaries wearing uniforms. -- Digby _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/