The no gpsd packet is successfully decoded by nearly all systems.
As you note the gpsd recording is stranger: the sound is typically quite distorted.
And this seems to occur as soon Direwolf has a gpsd daemon which it starts connecting to.
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On Sep 13, 2021, at 8:34 PM, WB2OSZ <wb2osz@...> wrote:
?This is very strange.
Let's start with no nogpsd recording.?? The first thing we notice is a beep at the beginning and end.
<dummyfile.0.part>
The beep near the beginning has a frequency of about 782 Hz.?
<dummyfile.1.part>
It looks like the amplitude might be so high that it is clipping and distorting the signal.
The beep near the end is very strange.
<dummyfile.2.part>
The fundamental frequency is about 440 Hz with very strong harmonics.
The packet has amplitude fluctuating all over.
<dummyfile.3.part>
The with gpsd recording is even stranger but let's get the no gps case working correctly first.
Where is this coming from??? Is the recording directly from the soundcard or after a transmitter and receiver?
