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Carter-k8vt · January 30th 07, 02:38 PM posted to rec.radio.shortwave

wrote:
That's some good information, K8VT. It would be interesting to hear more
on the subject of digital shortwave radio communications from the
members of this group. A cheap SW radio, a cheap computer with a
soundcard and a free program is all that seems to be required. Is there
anything else that we should be aware of K8TV ?

Roger 507

Well, two comments I should have added to my original response:

The TNC, in addition to the "TOR" modes is also great for packet
(AX.25). Unfortunately, packet, as used by hams, is mostly dead.
However, many satellites still use AX.25 for sending telemetry, the
latest example being "Pehuensat-1, the new Argentinian satellite.

I also should have stated the obvious, that software (as used by sound
cards), is much more flexible than firmware (as used by TNCs).
------------------------------------------------------

To address your comments above, yes, a cheap computer, sound card and
software is fine. However, I might disagree with you about "a cheap SW
radio". Receiver stability and selectivity are very desirable
characteristics for copying digital and usually don't come too cheaply...