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 the ppm correction drifts a bit.  I really recommend getting a v3 RTL-SDR or a NESDR Smart as they seem more stable.  At any rate it doesn’t matter, you’ll just have to deal with the drift if you have any.

My assumption here is that you have Raspbian installed on at least a Pi 3.  I haven’t tried it on a lesser Pi but I had it on a Pi 3 B + and then I found a couple Pi 3 B’s laying around and figured I’d reclaim my B+ for another project on another day.  OP25 runs fine on the Pi 3.

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So I finally figured out OP25 and I have this brand new Raspberry Pi 3 B + laying around doing nothing.  In this segment we’ll install OP25 on Raspberry Pi and then take our police scanner feed and send it to the internet on Broadcastify.

As someone pointed out to me yesterday, “There’s an app for that” they are indeed correct.  You can get Police Scanner Apps for IOS and Android.   Guess where the feeds in those apps comes from?  If you said Broadcastify you’d be correct.  So if no one is feeding your municipality   then there will be no feed in the app.  We will be that feed.

So the assumption is that you have a Pi with Raspbian installed and you kind of know how to use it.

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