Chris, who has only been messing around with the Raspberry Pi for just over 24 months, is one of the projects being shown at our event. While we have some simple projects for you to see on the day, there are also more technical examples of what local people are using the Raspberry Pi for.
He has an amateur radio APRS project is using a Pi3 running the Xastir program and a hardware TNC. The TNC (Terminal Node Controller) is the TNC-Pi kit which piggybacks onto the Pi, providing the interface between the radio – in this case a 2m amateur radio handheld transceiver, and the Pi.
He is using a Raspberry Pi, to allow an expensive Walky Talky radio to access the Raspberry Pi and control the data. The data is received from the radio into the TNC and decoded and passed to the Pi where it is displayed on a map within the Xastir software. The Pi also sends position info into the TNC where it is then passed to the radio, which transmits out the data. The radio is transmitting and receiving on 144.800 Mhz which is the standard frequency for APRS operating. The signals are the picked up by other stations which can then repeat the signal across the APRS network, some are even configured to repeat this data across the internet allowing the signals to be picked up globally.
If you wish to see this APRS set up in action, visit the webpage http://aprs.fi as his setup is transmitting the callsign g7vnn-10 just south of Norwich.
Come along and see Chris, ask him and others about their project with the Raspberry Pi.
We also have another project using amateur radio. Karl will have another walkie talkie radio, walking around on the day, connected to a Raspberry Pi enabling him to talk and chat to people all around the globe!
- See the full running order for the event here.