OP25 Digital Decoder Revisited
About 5 years ago I was DETERMINED to figure out a digital voice decoder software program called OP25. It literally took me a year to figure out how to do it. I’d work on it for a day or two then give up. Then try again a week or three later. Then one day I heard the crackle of a police call over my speaker. It was at that moment I decided to take what I learned and wrote a dummies guide about it. To this day, it is still the blog that gets the most hits, and attention. And that blog is mostly still relevant. It pretty much works in the same way.
Just last night I took my old OP25 installation and noticed that it was on Raspberry Pi OS “Buster”. I tried to upgrade it to the current distribution code named “Bullseye” and things rapidly began going south. Before I fouled it up too bad I downloaded 4 files:
- op25.sh – a script file I made to launch the program
- trunk.tsv – a file that tells OP25 what Frequency and NAC to listen to
- newbern.tsv – my local configuration for the police talk groups here
- viper.tsv – the NC statewide talk groups
I decided to start fresh and within about 20-30 minutes I had a fresh installation of Raspberry Pi OS and OP25 running. I think I can streamline my installation process a bit more.
Dislaimer
I have absolutely nothing to do with the development of OP25. I’m just the guy who wrote the dummies guide on it. And I’m doing it again.
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