I said earlier:

"If I set the tone to 1500 Hz, the FT8 mid-band target, I'm presented with the cyclic ALC and some ~193 Hz, -50 dBc sidebands. "

Ten KHz/div is too coarse to see these.  Try again.

Wes  N7WS

On 8/5/2017 1:01 PM, Brian Hunt wrote:
Here are some spectrum photos from the tune signals of both FLDIGI and WSJT-X 1.8. All three are essentially identical showing some low level sideband noise +/- 30 kHz and down > 60dBc. There's no apparent difference in the spectra between pumping and non-pumping ALC, as Wes reported.



Brian, K0DTJ

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