[Elecraft] K3: Odd ALC behavior

Wes Stewart wes_n7ws at triconet.org
Sat Aug 5 16:26:48 EDT 2017


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.
>
> http://www.pbase.com/brhunt/spectrum_photos
>
> Enjoy!
>
> 73,
> Brian, K0DTJ 



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