Bill Coleman wrote:
What you'd end up with for the "receiver" would be a Mixer and clean
DDS, followed by a high-speed, wide-range A/D converter. Everything else
I don't understand why you write about such things as in the future.
There are several products on the amateur market, although I don't know
if any of them use a DDS VFO.
The interesting part of this approach is that we can re-define what we
mean by a receiver. The detection portion of the radio need not resolve
to the width of an audio channel. Consider a receiver that can decode
every CW signal in a 50 kHz portion of the band. Simultaneously. How
useful would that be?
The telcos where doing direct digital conversion from analogue carrier
systems to multiple PCM channels a long time ago. I think before your
1995 article.
--
David Woolley
Emails are not formal business letters, whatever businesses may want.
RFC1855 says there should be an address here, but, in a world of spam,
that is no longer good advice, as archive address hiding may not work.
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