[op25-dev] Re: sockaudio.py startup?

John Ackermann N8UR jra@febo.com [op25-dev] op25-dev at yahoogroups.com
Wed Jul 5 20:56:53 UTC 2017


Bill, as I understand it, the software retunes the SDR as the control channel commands for each exchange.  So the sample rate only needs to handle a single channel.  When I had the scope.py setup running a few weeks ago, I used a 250K sample rate (lowest supported by the RTL-SDR.com dongle) with good results.  The lower sample rate also helps reduce the CPU load.

73,
John 

On Jul 5, 2017, 2:04 PM, at 2:04 PM, "'wa8wg' wa8wg at centurytel.net [op25-dev]" <op25-dev at yahoogroups.com> wrote:
>Sorry, that doesn’t work because of the frequency span of the MPSCS
>system that I am monitoring in my area.   A sampling rate of less than
>results rx.py reporting tsblks 0.   Is it possible there might be an
>error in the additional lib and app files that I pulled from the
>webpage text may be in error?  I did run dos2unix on each of the files
>once I captured the text from the webpage.    Can you add these to your
>max branch?
>
> 
>
>Thank you,
>
> 
>
>Bill
>
> 
>
> 
>
>William G. Becks, WA8WG
>
>N7027 Shady Lane Circle
>
>Porterfield, WI 54159
>
> 
>
>Telephone: 715.735.0131
>
>E-Mail:  <mailto:wa8wg at centurytel.net> wa8wg at centurytel.net
>
> 
>
> 
>
> 
>
>From: op25-dev at yahoogroups.com [mailto:op25-dev at yahoogroups.com] 
>Sent: Wednesday, July 5, 2017 10:57 AM
>To: op25-dev at yahoogroups.com
>Subject: RE: [op25-dev] Re: sockaudio.py startup?
>
> 
>
>  
>
>okay it's possible there are multiple issues happening here - as a
>first step lets have you lower the sampling rate to 1,000,000 - so, -S
>1000000
>
>Once we can rule out the samp rate as a possible cause the next step
>may become more clear....
>
>Max
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