op25-dev

op25-dev@lists.osmocom.org

1 participants
310 discussions

Updates on P25 Security, Wireline Interfaces Among January Work
by verymetl＠hotmail.com [op25-dev] 11 Mar '16

11 Mar '16

This article may be of interest to some if the devs here... Updates on P25 Security, Wireline Interfaces Among January Work http://mccmag.com/News/NewsDetails/NewsID/14019

1 0

grc file op25
by Sean Kealy superstardodge＠yahoo.com [op25-dev] 07 Mar '16

07 Mar '16

Would anybody be kind enough to give me a copy of the grc file for op25?

1 0

p25_frame_assembler performance problems
by lukekb＠gmail.com [op25-dev] 23 Feb '16

23 Feb '16

I am trying to record a Phase 1 P25 Trunking systems. I have a bunch of OP25 records hooked up to the different channels that the system could use. I have a Valve in the flow graph that will allow samples to pass or dump them to a null_sink. This lets me turn P25 recorders on or off. The problem is that the recorders using OP25 seem to using a ton of CPU even if they are not getting samples. I tracked it down to the p25_frame_assembler block. Whenever it is connected to a flow graph, it seems to be using a lot of CPU, even if it is not getting any samples. Any ideas why the p25_frame_assembler block would be using CPU cycles even if it is not getting samples in? I am running it with the following params: bool do_imbe = 1; bool do_output = 1; bool do_msgq = 0; bool do_audio_output = 1; bool do_tdma = 0;

2 3

waterfall
by Sean Kealy superstardodge＠yahoo.com [op25-dev] 16 Feb '16

16 Feb '16

Ok I know I asked this before but im still stuck, why when I launch op25_25.PY I just get the waterfall app, im using the black rtl sdr how do I tell it to tune o a frequency? Where could I find the op25.grc file and just run op25 in gnu radio companion? Yea I know, I suck, I ask alot of dumb questions , but im tryin! Cant wait for the live cd to come out!

1 0

waterfall
by Sean Kealy superstardodge＠yahoo.com [op25-dev] 16 Feb '16

16 Feb '16

Corporal Sean Buckland Kealy III "The Whackmaster Sexy"

1 0

scope
by Sean Kealy superstardodge＠yahoo.com [op25-dev] 09 Feb '16

09 Feb '16

Im sorry im not fluent or able with some of the commands, people are made and not born, I have an interest in the project thats why I joined and want to learn more about this stuff Could anybody walk me through how to use scope I sourced the envronment Ran scope with all the parameters for rtl sdr The program script s tarts but then nothing happens , what could I be doing wrong?

2 1

scope
by Sean Kealy superstardodge＠yahoo.com [op25-dev] 09 Feb '16

09 Feb '16

Corporal Sean Buckland Kealy III "The Whackmaster Sexy"

1 0

scope
by Sean Kealy superstardodge＠yahoo.com [op25-dev] 08 Feb '16

08 Feb '16

When I run scope, the script executes but nothing happens Ive entered all the parmeters for rtl sdr and run the env setup Doi need gnu rafio running in the same shell?

1 0

scope
by Sean Kealy superstardodge＠yahoo.com [op25-dev] 08 Feb '16

08 Feb '16

Corporal Sean Buckland Kealy III "The Whackmaster Sexy"

1 0

Re: [op25-dev] waterfall
by Sean Kealy superstardodge＠yahoo.com [op25-dev] 08 Feb '16

08 Feb '16

Sorry, entering the command lne arguments and parameters is where im struggling, what could I enter for a command if I wanted to listen to 139.5600? -------------------------------------------- On Sun, 2/7/16, Matt Ames matt.ames7bc(a)gmail.com [op25-dev] <op25-dev(a)yahoogroups.com> wrote: Subject: Re: [op25-dev] waterfall To: op25-dev(a)yahoogroups.com Received: Sunday, February 7, 2016, 2:50 PM Tell me this - what frequency did you tell it to tune to using the command line arguments? Does the line that says "[R820T] PLL not locked for 3570434 Hz!" give you any hints as to what may have gone wrong? As has been suggested, check out the command line arguments before running the program. On 8 February 2016 at 09:25, Sean Kealy superstardodge(a)yahoo.com [op25-dev] <op25-dev(a)yahoogroups.com> wrote: > > > When I open waterfall i get the following pasted below in terminal, and > the waterfall doesnt do anything, do I have to open grc in terminal first > somehow? > thanks > sean > > root@kali:~# ./op25_grc.py > Using Volk machine: sse3_64_orc > RTL2832 Source block configuration: > Read length (bytes): 262 > Buffer enabled: yes > Buffer multiplier: 8 > Buffer size (samples): 1048 > Samples per read: 131 > Buffer level: 50.0% > Successfully initialised demod: "ezcap EzTV" > Probing "e4k"...not found. > Probing "fc0013"...not found. > Probing "fc2580"...bad check value. > Probing "r820t"...found. > Found RTL2832 device: ezcap EzTV (tuner: Rafael Micro R820T) > Sample rate range: 900001 - 3200000 Hz > Crystal frequency: 28800000 Hz > [r820t] Initialised (default bandwidth: 0 Hz) > Wait delay: 0.196 ms > [R820T] PLL not locked for 3570434 Hz! > work wants more than the buffer size! > Capture threading starting: 7f904e7fc700 > rOShort bulk read: given 0 bytes (expecting 262) > rBlibusb error: the device has been disconnected [-4] > Capture threading aborting due to libusb error: 7f904e7fc700 > No longer running after packet notification - signalling EOF... > > > > >

1 0

← Newer
1
...
13
14
15
16
17
18
19
...
31
Older →

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

op25-dev