Interesting read
http://hackaday.com/2013/03/21/wspr-tra ... r-hacking/
Raspberry Pi as WSPR transmitter
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VK2DDS
Re: Raspberry Pi as WSPR transmitter
That's bloody brilliant! I've got 3 floating around and hadn't thought to generate a square wave on a GPIO pin. Time to check the code...
Edit: This code is configured to Tx every 2min cycle, it's easy to add a line to the C code to make it Tx randomly though. Something like this would probably do the trick:
(insert on line 757 of wspr.c)
757: if(!(rand() % 3))
Edit: This code is configured to Tx every 2min cycle, it's easy to add a line to the C code to make it Tx randomly though. Something like this would probably do the trick:
(insert on line 757 of wspr.c)
757: if(!(rand() % 3))