I want a UK one! Damn those poorly distributed airwaves.
The EU allows the 136Khz band for amateurs I believe. It would be like communicating via semaphore in the fog and would probably need pretty large antenna, but we could be talking some serious arduino <--> arduino range... 50km+ I'd expect.
The EU allows the 136Khz band for amateurs I believe. It would be like communicating via semaphore in the fog and would probably need pretty large antenna, but we could be talking some serious arduino <--> arduino range... 50km+ I'd expect.