I have 4 active hams living within 1/2 mile of me, and while
the Pro III works well, I can tell from de-sense that others are
on when
one of them operates. The band scope of the PRO III will show
an
increased base line across the entire scope... All 4 run a KW.
The increased base line sounds more like broadband phase noise
generated in THEIR radios. Phase noise is a background hiss that
stays relatively constant all the time their rig is in the
transmit position, regardless if they are speaking on SSB or
keying on CW. The noise will be there during speech pauses or CW
key-up periods. If that is the case, THEY are the ones who need
the K3's to clean up their transmitted signal. If their phase
noise covers the frequency that you are trying to hear, there's
not much you can do at your end.
Dave Hachadorian, K6LL
Yuma, AZ
.
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