Quoting Ted <[EMAIL PROTECTED]>, on Sun 23 Dec 2007 12:27:02 PM PST: > > > Ok, I see why I connected the two technologies. Does the 'exact' > timing needed for CCW help with the 'very narrow bandwidth detector' > methodology? > Is the CCW detector only allowing or gating for the signal at an > 'exact' moment in time? > hmmm, more questions. :-)
Both.. you KNOW when the dits and dahs are occuring (symbol sync), and because you are tracking carrier phase, you can coherently integrate over the symbol time, which improves the SNR. Say you had a really narrow receiver, but didn't know when the dits and dahs are. You sample the output of the receiver, but you might happen to sample half way between a dit and the inter-dit interval. _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
