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New APX6000Li giving me weird audio?

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thedanderzone

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Hi all,

We just purchased 10 new APX6000Li radios for our department. I'm mainly coming from Kenwood (and a little XTS series experience) so bear with me. I've got them all programmed up and everything is working great. However, I notice from time to time (and noticing more and more as of the last few days) that I'm experiencing what appears to be an echo in audio quality. It isn't a specific frequency, it isn't a specific radio. Sometimes it happens, sometimes it doesn't. I don't know if it's a problem with the audio "optimization" or if that's the audio optimization at work. I am using the "default" radio profile and haven't changed it at all. It is rather annoying...

It happens both from the internal speaker as well as our speaker mics, both low and high audio levels. It sounds like every user transmitting is echoing, even dispatch. I've searched and searched within forums and CPS, and I'm coming up empty.

Any suggestions are appreciated!
 

thedanderzone

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I think I figured out the cause.....

I've pretty much narrowed the issue down to channels that are being scanned. When I'm on my priority channel, the priority channel does not receive with echo. However, when channels are receiving that are being scanned, the echo is present. Very interesting..

FWIW, I have the scan time between priority samples set to 250ms.

If anyone else has other suggestions, please let me know. It is still rather annoying, but I must say, the actual audio quality is pretty amazing.
 
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