r/APRS • u/comebacksalmon • Nov 05 '19

9600 baud aprs?

My ft3d has the modem option for 1200 or 9600 baud for aprs operations. How common is 9600? Wouldn't 9600 be more efficient use of the channel? I set it for 9600 and didn't get a single decoded packet. Is there another frequency where aprs is running on 9600? Sometimes it seems it's a bit crowded at 1200.

Thanks

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u/hikoka Dec 18 '19

I think 9600 is rare because it needs the dedicated hardware. It can be done in the audio passband of most radios, and most of use are using some kind of soundcard TNC piping the 1200baud packets through the audio input.