FM Modulation in Software
A project log for PB121
A project to replace the Uniden PB121, PB112 boards with modern counterparts to revive dead radios and overcome mcu limitations.
A project log for PB121
A project to replace the Uniden PB121, PB112 boards with modern counterparts to revive dead radios and overcome mcu limitations.
David L Norris
Discussions
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Some carrier waveform stability concerns but the FM modulation works well enough that I think it will be trivial to implement. Particularly if other implementations can be adapted. Switching to the SI5351 I hope will eliminate ll stability issues. I have read that some have observed instability with these AD9850 boards in the frequency ranges that we will need to be using; around 40 Mhz or so.
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