What Is APRS?

Automatic Packet Reporting System (APRS) is a digital system that uses VHF radio to send small packets of data.

These transmit information and messages over the amateur radio network.

The most common use for these small packets of data is to report the GPS co-ordinates and information.
As a result, this information can then be decoded and mapped to show the position of the transmitting station.

Below is a screen capture of a short burst of transmitted data.
APRS data screen capture
The internet is also used to relay the packets of information allowing anyone in the world to view the data.

The use of the internet has spawned a number of websites displaying the data in real time, aprs.fi possibly being one of the best.

Current data for G7SYW

Below is my live data updated in real time. The last reported position is shown when real time data is not being transmitted.

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