[aprssig] New Version of UZ7HO Soundmodem Software TNC Released

Bill Vodall wa7nwp at gmail.com
Sun Nov 30 13:05:24 EST 2014

> To: TAPR APRS Mailing List
> Subject: [aprssig] New Version of UZ7HO Soundmodem Software TNC
> UZ7HO released version 0.69 of his AGW-compatible software TNC application today ( 29 November 2014).

I was sharing on our local "all things fun and digital" discussion
list about the progress with the sound card modems such as UZ7HO and
Dire Wolf, when one of the uber-techy members responded with:

>> Without some measured Eb/No
>> curves, you don't know where you are on the "crappy scale".  There is
>> absolutely no reason why you can't generate an Eb/No curve with the
>> soundcard modem.  However, I have yet to see one, much less compared
>> with any radio/modem combination.

I know there have been some significant tests (wa8lmf pages, DireWolf
user doc) against a 'standard' CD of aprs traffic but is there any
more scientific Eb/No data as mentioned?

Even more intriguing would be the test results at higher speeds such
as 9600 and now 19200 with UZ7HO.

Bill, WA7NWP

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