[aprssig] VARA Continues To Show It's Overwhelming Superiority Over AX.25 Packet

Steve Stroh steve.stroh at gmail.com
Mon Oct 7 00:20:41 EDT 2024


Jason:

Unfortunately that won’t happen with VARA because the author isn’t
interested.

But there are advanced HF modems + protocols like Mercury -
https://www.zeroretries.org/i/148591155/mercury-v-linux-and-windows

But these sophisticated modems + protocols might be beyond the abilities of
a simple microcontroller like you proposed. What makes VARA so effective is
the multitude of modems and other techniques such as variable FEC,
negotiating with the other station, channel sounding, etc. That may well
require a multitasking OS.

Steve Stroh N8GNJ (he / him / his)
Editor
Zero Retries Newsletter - https://www.zeroretries.org
Radios are Computers - With Antennas!


On Sun, Oct 6, 2024 at 20:44 Jason Rausch <jason at ke4nyv.com> wrote:

> I could get behind VARA if they would open up the spec so we can implement
> it in a hardware modem, thus eliminating the need for a full Windows
> computer to run it.  Let us embed it in a dsPIC or STM32 processor, give it
> a KISS USB interface and then we can use it on everything.
>
> Jason Rausch K4APR
> www.ke4nyv.com
>
>
> On Sunday, October 6, 2024 at 11:28:00 PM EDT, Stephen H Smith via aprssig
> <aprssig at lists.tapr.org> wrote:
>
>
> [ 11:00  PM EDT  6 Oct / 0300 UTC 7 Oct]
>
> I am currently observing a dramatic demonstration of how overwhelmingly
> superior VARA is  compared to classic AX.25  HF packet.   At this time,
> there is a nearly total HF blackout on 30M due to the massive solar CME
> (coronal mass ejection)
>
> Currently, my APRS mapping webserver for 30M meters 300-baud HF packet
> APRS is showing no stations at all.  (Normally at this time of the evening
> there would be half a dozen or so stations around the country showing on my
> map. Receive via UZ7HO Soundmodem software TNC. )
>
> Meanwhile, beacons from WA7GMX-8 in Washington state and WB8SKP-9 in
> western Kentucky are continuing to be received on 30M APRS-over-VARA, here
> at my QTH near East Lansing, Michigan.
>
>
> ------------------------------
>
> Stephen H. Smith    wa8lmf (at) aol.com
> Skype:        WA8LMF
> EchoLink:  Node #  14400  [Think bottom of the 2-meter band]
> Home Page:          http://wa8lmf.net
>
> APRS-over-VARA igates now operating on 30 & 60 meters
>    <http://WA8LMF.net/map> <http://WA8LMF.net/map>
>
> "Studio B" Ham Shack on Wheels
>    <http://WA8LMF.net/Aliner> <http://WA8LMF.net/Aliner>
>
> -- APRS over VARA  --
>    <http://wa8lmf.net/APRSoverVARA.> <http://wa8lmf.net/APRSoverVARA.>
>
>
>
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