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Audio Stuttering Problem

Covering the following Subscriber devices: APX1000/1500, APX3000, APX4000/4500, APX6000, APX6000XE, APX6500, APX7000, APX7000XE, APX7000L, APX7500, and APX8000.

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Dystroxic
New User
Posts: 6
Joined: Mon May 15, 2017 11:58 am

Audio Stuttering Problem

Postby Dystroxic » Sun Jun 11, 2017 5:52 pm

Hi all,

I just got a new APX6500 and am having an issue with it that I'm hoping someone here can identify. Most of the channels work perfectly, but one of them is making this odd "stuttering" noise. The voice is clear, but the static follows this weird loud/quiet cycle. Here's an audio recording of what it sounds like:

https://drive.google.com/file/d/0BxWIAp ... sp=sharing

Anyone have any idea what setting in the codeplug might cause/solve this?

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OCSD117
was RPDM313
Posts: 586
Joined: Mon Mar 21, 2005 8:52 am
What radios do you own?: XTL2500, APX3000, APX7000

Re: Audio Stuttering Problem

Postby OCSD117 » Mon Jun 12, 2017 3:34 pm

Is it a narrow band channel? Is that set in the Cp?
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RFguy
Posts: 1276
Joined: Wed Dec 21, 2005 6:17 am

Re: Audio Stuttering Problem

Postby RFguy » Mon Jun 12, 2017 5:58 pm

It almost sounds like scan sampling.

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jackhackett
Posts: 1401
Joined: Tue Jun 10, 2003 8:52 am

Re: Audio Stuttering Problem

Postby jackhackett » Tue Jun 13, 2017 8:41 am

RFguy wrote:It almost sounds like scan sampling.


It sounds exactly like scan sampling.

Check scan/priority settings and see if that channel is programmed for auto-scan.

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ces911
Posts: 158
Joined: Sun Oct 26, 2008 10:41 pm
What radios do you own?: APX8000,NX5210

Re: Audio Stuttering Problem

Postby ces911 » Tue Jun 13, 2017 5:22 pm

That is priority sampling.. It is checking your priority channel while on a none priority every the amount you programmed in seconds.
I monitor my PM's, So I should reply fairly quick...

Dystroxic
New User
Posts: 6
Joined: Mon May 15, 2017 11:58 am

Re: Audio Stuttering Problem

Postby Dystroxic » Wed Jun 14, 2017 11:25 am

Yep, you guys nailed it. Disable priority scan and it works without issue. Kind of surprises me though, that such a major feature would cause such annoying audio like that.

RFguy
Posts: 1276
Joined: Wed Dec 21, 2005 6:17 am

Re: Audio Stuttering Problem

Postby RFguy » Thu Jun 15, 2017 6:15 am

Dystroxic wrote:YKind of surprises me though, that such a major feature would cause such annoying audio like that.


How is it possible it couldn't effect the audio?

The radio has to change channel to look at another frequency for a period of time and return to the main channel. Every time it's looking at a different frequency, it can't receive on the main frequency. There has to be audio holes.


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