I did some analysis on Blinky’s transmitter last night and did not see the spurs Bob saw on his board.

My experience with using a spectrum analyzer close in looking for spurs or phase noise is limited so more analysis is needed.

I did look at the harmonics and the second was down 48 db from the fundamental (+15 to -33 dbm).

The third harmonic was in the noise and undetectable.

Now, for receiver board surgery.

Jim McCullers

WA4CWI