APRS Transmitter
Send APRS position beacons
What it does
SimpleThis sends the little 'here I am' postcard that ham hobbyists use — the same kind you caught in the APRS receiver, now sent from your device. To do it for real you need a ham radio licence and your own callsign, because it goes out on the amateur bands.
With a licence it's genuinely useful: your position can hop through digipeaters and even reach the internet, so friends can see where you are on a map.
How it works
SimpleYour callsign and position get packed into a digital postcard, then turned into two whistling tones and sent out. Relay stations called digipeaters hear it and rebroadcast it so it travels far, and internet gateways can put it on a website map.
How to use it, step by step
Simple- Get a ham radio licence and callsign first.
- Open 'APRS TX' and set your callsign and location.
- Add a short comment if you like.
- Send your beacon on the ham APRS channel.
- Watch it show up on the APRS receiver or an online map.
Examples
Send a single licensed position report and see it appear on APRS RX.
Choose a WIDE path and watch a digipeater relay your beacon further than direct range.
Beacon a status comment and see how the free-text field carries extra info.
Tips & things to try
- A valid callsign is required — APRS TX is licensed amateur operation, not anonymous.
- Keep beacon intervals reasonable so you don't clog the shared channel.
- It's the twin of the APRS receiver — run both to watch your own packet make the round trip.