CyberSpectrum Melbourne: Building a Cheap FSQ Transceiver with Arduino, Raspberry Pi and RTL-SDR
FSQ (Fast Simple QSO) is a relatively new ham band mode for making text QSO’s (contact or exchange of information with another ham) over HF frequencies. It is a low data rate mode similar to PSK31 but with some interesting features like relaying which allows signals to be relayed further via other FSQ stations.
Over at in Melbourne, Australia a Cyberspectrum SDR meetup is held every few weeks. At this weeks meetup @faulteh discusses the FSQ mode and some of it’s interesting features. He also shows how he can transmit FSQ using a Si5351 clock generator and Arduino (with filtering). In the future he hopes to also create a fully automated receive station using a Raspberry Pi and RTL-SDR dongle.
The Arduino FSQ code is available on GitHub, and more information is available on his hackaday.io page.
thanks for this post.
what is the maximum distance between the emitter and the receiver ?
This is a fantastic presentation which I thoroughly enjoyed. It sounds like they are having a lot of fun in Tasmania.
I would definitely buy one of these transmitters if RTL-SDR could start selling them as a complete kit.