Scratchy audio on some transmissions

On my 900MHz node, I am having problems where the “repeat only” and various transmissions sound clipped and scratchy. I turned my audio down the the lowest setting (so I had to really crank my receivers audio) and even the small, barely deviated amount of audio that came out was scratchy when Allison announced “repeat only”.

Has anybody had this issue before? The clipped audio only seems to occur on transmissions with a lot of punch, and is fine for both. Both adjusting the deviation on the radio and turning my TX audio down to a bare minimum does not seem to do the trick.

Audio levels is not a problem, however. We tested it on a service monitor and got the deviation fine with the test tone.

Thanks

Skyler

Could you be falsing DTMF? That’ll cause a short drop in audio, and tends to happen on hard driven punchy audio. You’ll see it show up in the asterisk CLI if you’re in verbose mode.

···

Cheers,
Jesse

On Mar 31, 2016, at 10:30 AM, Skyler F electricity440@gmail.com wrote:

On my 900MHz node, I am having problems where the “repeat only” and various transmissions sound clipped and scratchy. I turned my audio down the the lowest setting (so I had to really crank my receivers audio) and even the small, barely deviated amount of audio that came out was scratchy when Allison announced “repeat only”.

Has anybody had this issue before? The clipped audio only seems to occur on transmissions with a lot of punch, and is fine for both. Both adjusting the deviation on the radio and turning my TX audio down to a bare minimum does not seem to do the trick.

Audio levels is not a problem, however. We tested it on a service monitor and got the deviation fine with the test tone.

Thanks

Skyler


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