[aprssig] New VARA-HF Softmodem A Spectacular Improvement For HF APRS

[Stephen H Smith]

On 1/9/2023 12:30 PM, Eric H. Christensen wrote:
>> Over the weekend of the 6th and 7th of January , I conducted a road test comparing the performance of APRS over traditional HF 300-baud AX.25 packet vs APRS using the VARA modem on 60 meters. This was a 500-mile round-trip from central Michigan (East Lansing area) to west suburban Chicago and back. VARA was overwhelmingly superior - by least an order of magnitude!
> Are you planning on doing a comparison between VARA and PSK63 or MFSK16?
>
> 73,
> Eric WG3K

YES!   Here is the preliminary write-up on the planned test in February.

<http://wa8lmf.net/APRS_VARA_MFSK/>


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