[aprssig] tapr 30 Meter VARA Tests
Stephen H Smith
WA8LMF2 at aol.com
Sun Dec 17 14:14:16 EST 2023
On 12/17/2023 1:22 PM, Jim Sanford wrote:
>
> Can someone point me to what VARA is?
>
> Thanks,
>
> Jim
>
> wb4gcs at amsat.org
>
VARA is a relatively new soundcard-based "digi-mode". it is essentially a
software-based modem or "TNC" that can work reliably at extremely low
signal-to-noise ratios. With a strong signal, it can achieve speeds exceeding
1200 baud packet in a 500 Hz CW bandwidth on HF/SSB. VARA is only a modem -
some application software with an IP or KISS link like a messaging app or email
needs to run on top of it.
Some details on VARA and how to mate it with APRS applications is here on my
website:
<http://WA8LMF.net/VARAforAPRS> Shows using APRS clients with VARA as a
vastly superior means of HF APRS beaconing.
-------------------------------------------------------------------------------
Stephen H. Smith wa8lmf (at) aol.com
Skype: WA8LMF
EchoLink: Node # 14400 [Think bottom of the 2-meter band]
Home Page: http://wa8lmf.net
"Studio B" Ham Shack on Wheels
<http://WA8LMF.net/Aliner>
-- APRS over VARA --
<http://wa8lmf.net/VARAforAPRS.htm>
60-Meter APRS! HF NVIS APRS Igate Now Operating
<http://WA8LMF.net/map/>
Flying Digipeater!
<http://WA8LMF.net/FlyingDigi>
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