[Elecraft] K3 diversity phase drift
Jim Brown
jim at audiosystemsgroup.com
Wed Apr 8 14:55:13 EDT 2026
Interesting observation, Dave. For use in diversity reception, I don't
see any practical problem with the drift -- the difference would only
affect the depth of cancellation if the two ears were combined to mono.
But diversity works by our ears getting the output of two antennas
spaced a significant fraction of a wavelength and/or having different
polarization and our brains listening to the one where cancellation
between multiple arrivals is least at any given moment in time.
73, Jim K9YC
On 4/8/2026 11:20 AM, David Gilbert via Elecraft wrote:
> The amount of the drift varies but is roughly 3 degrees in about ten
> minutes. It seems to be pretty steady even when the K3 has had a chance
> to warm up, with a little bit of jitter (a few hundredths of a degree or
> so) as it drifts.
>
> I'm just curious what might be the source of the drift. Any thoughts?
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