What version of Windows and VAC are you using?

-Tim


-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Tony
Sent: Tuesday, May 31, 2011 2:37 AM
To: [email protected]
Subject: [Flexradio] It's back - Choppy TX Audio with Digital Modes

All,

The choppy digital mode transmit audio is back.

Plea see http://www.youtube.com/watch?v=b58Pc1BY_wE


I tried different VAC buffer settings, but that didn't help. It seemed to work 
OK for a while after I removed and reinstalled PowerSDR 2.0.22. 
It goes away temporarily after I reset the data base.

I'm using the same computer (one of Neal Campbells' machines) for a year or so 
with the Flex 5000A and it's never done this before. The DPC latency averages 
60us; the rig and PC (Windows XP) have been running flawlessly with 2.0.22.

I removed and reinstalled VAC to see if that would do anything, but it didn't 
help; not sure if it was completely removed because it saved my cable settings.

I should mention it does this when running PowerSDR with nothing else except 
the digital mode software; Multipsk, HRD, Fldigi etc.

Could this have something to do with the sound card itself or it's drivers? If 
so, how can I check this?

Thanks,

Tony -K2MO






> All,
>
> I've noticed that the outgoing audio on my Flex 5000A becomes choppy 
> now and then when running digital modes. I can see that it is 
> affecting the power output as well because RF drops out for a fraction 
> of a second along with the audio. It does this when sending a steady 
> tone using the "tune" function with digital mode programs in DIGU/L 
> mode.
>
> I reset the database and setup PowerSDR 2.0.22 from scratch, but the 
> intermittent problem still exists. I also removed / reinstalled VAC 
> 4.09, but I noticed that my VAC settings were still in tact so I 
> suspect it was not completely removed.
>
> Any ideas? Should I remove PowerSDR and start fresh?
>
> Tony


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