You can turn your old Android phone into a ham radio – here’s how

Smartphones have essentially replaced all other methods of communication, but sometimes having access to a radio can be a lifesaver — especially during disasters. Well, there’s a way to take an Android phone — maybe an old one you’ve tossed in a drawer — and turn it into a fully functional ham radio.

Also: How ham radio survived – and remains a disaster – in the iPhone era

However, if you think this is as easy as downloading an app, I’m sorry to tell you that it’s a bit more complicated. The good news is you can build it for about $35.

The project has a name kv4p HTis a homebrew VHF radio capable of both voice and text communications.

Note that to legally use this in the US you will need a Level 1 Technician class license, details of which can be found This.

To add ham radio capability to your Android smartphone, you’ll need a few things.

You will also need one custom printed circuit boardand you will need to be able to weld. If you need a radio case, yes 3D printing files available.

Also: How to Solder: Tools, tips and tricks to help you get started easily

Oh, and you’ll need an Android smartphone with a USB-C port.

The website has it comprehensive guide on building the radio and flashing the firmware, along with Discord channel so that someone is available to help you along the way.

Also: NASA has a problem and offers a reward of up to 3 million USD if you have a solution

The phone’s battery powers the ham radio and power consumption is quite low but the radio can be physically disconnected by removing the cable.

For a deeper dive into how ham radio is still used today, check out this article by ZDNET’s Steven J. Vaughan-Nichols: How ham radio survived – and remains a disaster – in the iPhone era.