[op25-dev] scope

Sean Kealy superstardodge@yahoo.com [op25-dev] op25-dev at yahoogroups.com
Sun Jun 26 06:47:00 UTC 2016


 Ok I manged to get scope working but have a weak signal, getting a garbled conversation,I used ./scope.py --args 'rtl=0' -N 'LNA;50' -S 960000 -139.4200M -o 2000 -q -2.0 -v 0 -V to run scope, but I have to have my fine tune maxed at -3000 to get anything and get the correct pattern on constellation,What should I change in my command line(.scope.py) to improve the tuning? any ideas
 

    On Saturday, June 25, 2016 2:24 PM, "Sean Kealy superstardodge at yahoo.com [op25-dev]" <op25-dev at yahoogroups.com> wrote:
 

     Ok , thanks brett looks like im around 20 using that method



    On Saturday, June 25, 2016 12:45 PM, "Sean Kealy superstardodge at yahoo.com [op25-dev]" <op25-dev at yahoogroups.com> wrote:
 

      I think its .5 for the nooelec mini 2 blue rtl, going to try that
 

    On Saturday, June 25, 2016 12:13 PM, "Sean Kealy superstardodge at yahoo.com [op25-dev]" <op25-dev at yahoogroups.com> wrote:
 

     Ok thanks, how do I find out my devices ppm? So if the RTL doesnt support the op25 grc file, what do you recomend? funcube maybe or a usrp
Thanks alot for your input been working on this for a long time and am thrilled that I actually have got it installed and up and running! 
 
 

    On Friday, June 24, 2016 10:23 PM, "Very Metal verymetl at hotmail.com [op25-dev]" <op25-dev at yahoogroups.com> wrote:
 

     
./scope.py --args 'rtl=0' -N 'LNA:50' -S 960000 -f 139.5600M -o 20000 -q -1.9 -v 0 -V
Change -q -1.9 to what your RTL PPM value is.
Forget about OP25 and GRC, it doesn't support it.

From: op25-dev at yahoogroups.com <op25-dev at yahoogroups.com> on behalf of Sean Kealy superstardodge at yahoo.com [op25-dev] <op25-dev at yahoogroups.com>
Sent: Friday, June 24, 2016 11:26 PM
To: yahoogroups
Subject: [op25-dev] scope  Well i finally got scope working, turns out the problem was when i plugged in my rtl it installed the dvb driver, so I had to use the sudo rmod probe command and remove the kernel
I have scope up and running , I want to listen to 139.5600,(mhz) its p25 1 non-trunked, but I cant seem to find it with scope, and my fft plot is in khzAny sugestions on what to use for a ./scope command? Im using ./scope rtl=0 -f 139.5600M

Did anybody get the grc file I posted to work?
  

     

     

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