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echo: tech
to: Roy J. Tellason
from: Paul Williams
date: 2003-03-30 00:05:32
subject: UAVs

Hi Roy J. Tellason, hope you are having a nice day

WC>>But of course, if I'd had that way back when I'd have recorded 
WC>>that exchange right to the hard drive ;-) BTW that portable VHF 
WC>>receiver was variable tuning as well.
RJT>The problem with that sort of a setup is that it lacks portability.  I 
RJT>expect we'll see a solution to that before too much more time goes by,
RJT>anyhow. 
RJT>PC-MCIA (?) radio card,  in a laptop,  maybe?

 Why not? I've got a couple of surfacemount chips from Analog Devices
that are digital synthesizers. One will give you any freq between dc
to 62.5mhz in abt any modulation style you can think of 'cept am,
and we know how easy that is to do, using either a 14bit serial or
parallel input. The 16bit databus used in the older pcmcia spec would
do just fine. (pcmcia cardbus spec is 32bit bus)

 Add a good ADC to the demoded signal and send that to the soundcard
chip in the laptop for converting back to audio after some processing
and there you go.

 -=> Yours sincerely, Paul Williams <=-

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