[aprssig] Dirty signals vs. hardware TNCs

Brian D Heaton ky9k-lists at ky9k.org
Wed May 11 19:23:32 CDT 2016

You could do it manually. You could also let the log processing software 
do the work for you. Assuming a fixed audio level at the receiver and a 
bit of setup calibration work, the script can also report a pretty good 
measure of deviation.


On 5/11/2016 14:47, Bill Vodall via aprssig wrote:
>> Direwolf has the option to log packets to a file with daily rotation. That
>> file can be easily postprocessed to reflect packets received with an audio
>> level higher or lower than a specified range. The error count per packet is
>> there as well if you're running Direwolf with FIX_BITS turned on.
> Isn't there some audio capture and playback tool, maybe Audacity, that
> could be used to capture off the air audio, visually check for issues,
> and playback to see how it decodes.
> We had hardware for that 25 years ago in the X1J nodes - today we
> should be able to do it in software.
> Bill
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