SYNC LOSS

Darrell Black

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Oct 2, 2021, 8:42:03 PM10/2/21

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I am new to SDRtrunk and have yet to make it work. I started by installing SDRsharp to make sure my RTL dongle was working as expected. Once that was done I ran SDRtrunk and installed a simple DMR local repeater. I am getting SYNC LOSS errors every second in the message window. I have gain and PPM set to automatic. I do not get any audio from the repeater but I do via my DMR radio. Can someone point me in the right direction.

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GTR8000

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Oct 2, 2021, 8:55:47 PM10/2/21

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Take a look at the spectrum, you can see that you're not actually tuned to the signal. You need to first apply dongle correction to the tuner before auto-correction can function. Try -0.5 or -1.0 initial correction to get the dongle tuned to the signal, which you can verify by watching the spectrum as you adjust the offset.

Darrell Black

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Oct 2, 2021, 9:48:48 PM10/2/21

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Correcting the offset fixed the issue; I am able to hear the local repeater and also the local P25 tower now. The audio is not good but I will now start tweaking until it works. Thanks.

BTW, using the waterfall and zoom my offset was "39"

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