SignalsEverywhere: Build an RTL-SDR Based OP25 Radio Scanner with a Mobile Control Head Android App

Welcome back to Sarah from the SignalsEverywhere YouTube channel who has recently returned to producing videos from a hiatus. In her latest video, Sarah shows off her new OP25 Mobile Control Head Android App which allows you to implement a full P25 digital radio scanner at a fraction of the cost of a commercial digital scanner. In the past, Sarah had released a similar application written for the Raspberry Pi but has decided to shift her focus to writing an equivalent Android app that is less clunky and can be deployed for a lower cost. 

The app controls and displays information from the OP25 software that runs on a Raspberry Pi with RTL-SDR connected. It works by using a server application on the Raspberry Pi that manipulates the OP25 instance and its configuration files.

Sarah writes:

The application is a wrapper for OP25 that uses a raspberry pi and an android device to provide users with a mobile control head for their OP25 P25 scanner setup. Currently it's just a basic application but I'll be adding features like automatic site switching, etc.


There is also a separate application I call the OP25Display which is just a display for a users existing OP25 instance.


Build Your Own Digital Radio Scanner With OP25 Mobile Control Head App

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Am I missing something here? Isn’t P25 digital radio always encrypted? If yes, and I don’t have the decryption keys, what’s the point of the scanner?


Nope, often there’s no encryption at all or encryption only on specific channels.


now you are botting your upvotes? seriously. get a life.

while you are there, research this little thing called respecting people.


Your name is pathetic. stop hating on people and get a life.