OP25 Any easy setup guides for OP25 on a Raspberry Pi

[KMG54]

I have a new Pi400 I am really enjoying, have it clocked at 2.3 gigs, running cool no problems. I use DSD fastlsne on my windows computer and love it. Would like a p25 decoder on the Pi400 and it looks like OP25 is the way to go. I you tubed it and only found one install guide by Fuzzy, and you will fall asleep listening to him. Does anybody have a simple install guide to follow? Thanks in advance.

 

[rivardj]

This is old but will help get op25 install on your device:

OP25 on a Raspberry Pi (part 3)

In my last part I set the Pi up to stream to Broadcastify. In this one we are just going to pump audio out through the headphone jack. I’m doing this with an old generic black RTL-SDR and it works and it works fine but it is kind of susceptible to heat and cold and […]

www.hagensieker.com

Below is the latest readme file from op25 and this will help with configuration of the latest version of op25:

op25/op25/gr-op25_repeater/apps/README at master · boatbod/op25

Fork of osmocom OP25 by boatbod. Contribute to boatbod/op25 development by creating an account on GitHub.

github.com

Others may have additional resources that are better.

 

[KMG54]

Thank you.

 

[WB0VHB]

nmelfi, hang in there. Once you get OP25 up and working, it will be worth it. I struggled at first but now feel fairly comfortable with it. Be sure to use the rtl-sdr that has a metal case. It has much better stability. Also careful fine tuning of the frequency might be needed. This is done with the comma and period keys. Don't skimp on the antenna either. You'll need a fairly decent signal for proper decoding.
Good luck and check back if you need more help. Also after you get the hang of OP25, you'll want to use the web page gui instead of the command line interface. OP25 Dashboard | John’s Tech Blog

 

[boatbod]

It's pretty simple to install:

sudo apt-get install git
cd ~
git clone https://github.com/boatbod/op25
cd ~/op25
./install.sh

One installed you need to configure and tune.
See the file ~/op25/op25/gr-op25_repeater/apps/README-configuration for more hints.

 

[W4KRR]

I just got OP25 up and running on my Pi 400 yesterday. Works fine.

You just have to be careful; the biggest issues I had were small, overlooked typing mistakes, like typing a "-" where a "~" was required, or omitting a space, or adding an unneeded dash or space. Or, referring to a file in the command line that isn't configured properly. Linux is not forgiving of such mistakes at all!

Question for boatbod: I play the audio through built in speakers in a 7 inch monitor through HDMI. I read something about "liquidsoap", do I need this if all I want is local audio? Are there any advantages in using it?

 

[boatbod]

Question for boatbod: I play the audio through built in speakers in a 7 inch monitor through HDMI. I read something about "liquidsoap", do I need this if all I want is local audio? Are there any advantages in using it?

If all you want is local audio, the only reason to change playback to liquidsoap would be to try out the dsp algos for compression/normalization if the system you are monitoring has wide ranging audio gains.

 

[KMG54]

The install was easy. I am just getting old. I run DSD=Fl just fine, grew up on DOS commands, but can not get this. First thing is to reboot myself, them go back to the Pi4b. Might be a combination of user error and new hardware with the 400. Will start over next weekend, right now to crazy at work to come home and concentrate. But thank you guy's for all the help. I will figure it out someday.