[Lowfer] ARGO won't stay calibrated

[jrusgrove at comcast.net]

Andy

This may or may not be your problem ...

The sound card sampling rate is locked by the first program that starts and accesses the sound card. 
Additional programs accessing the soundcard that are started after the first program are forced to 
live with first program's desired sampling rate. This may not be a problem if it works out to be an 
even multiple / division of the sampling rate. If it isn't (like with early versions of Argo and 
some other programs) resampling occurs and this is where errors will most likely occur.

I'd shut down all programs accessing the sound card and then open task manager (ctrl+alt+del) to see 
if there is anything running in the background that might using the sound card. If so, shut it down. 
Then restart Argo as the first in line program to access the sound card.

Jay W1VD  WD2XNS  WE2XGR/2




----- Original Message ----- 
From: "Andy - KU4XR via Lowfer" <lowfer at mailman.qth.net>
To: " European & UK) and MedFer bandsDiscussion of the Lowfer (US" <lowfer at mailman.qth.net>
Sent: Saturday, January 10, 2015 4:37 PM
Subject: Re: [Lowfer] ARGO won't stay calibrated


> On Sat, 1/10/15, Garry Hess <k3siw at sbcglobal.net> wrote:
>
> Andy, is the argo calibration really changing or is the frequency scale just shifting?
> ______________________________________________________________________
>
> Thanks for the reply Garry.. In my case, it seems to be the actual calibration..
> I use 540 Hz for FC, and center it in the window.. Today when I opened, and started
> ARGO to look for " MP " ; 540 Hz was centered, but " MP " was showing at 544 Hz,
> when it should have been 540.5 Hz.. The frequency scale never moves, but the signal
> does ... Now on a coincidental note.. The random frequency shifts do seem to be
> more notable if I am multi-tasking on the computer while running ARGO..
> There may very well be a correlation to that..
>
> Andy
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