AE6WA said:
OTHR is a big problem in NA, at least on the west coast. On 40M in the early
AM it can prevent operation over the entire CW segment using my current
equipment (no noise blanker). This is a primary focus of my wanting NB
capability.
I have yet to hear a report of any tester on the efficacy of the K3 NB on
OTHR. Perhaps this is because the NB is late-arrival functionality and the
summer QRN has just about shut the band down here during the early dark
hours. For example this morning; I can't hear one CW signal through the
noise at 5:00am local. During winter up through late July this was prime DX
time except when the OTHR was present. When it was I just turn the radio
off.
It's odd, depending on who you are talking to, on the east coast
of NA the ZC4 woodpecker is/isn't a problem; likewise on the west
coast BY7. Maybe this is a sign of how active one is, as these
things are hard to miss (ZC4 can be 20-40 over S9 here by itself
on a band with no other signals; BY7 taking out the entirety [for
much of the rest of the world, at least] of 40m should also be hard
not to notice).
With the K3 hardware NB having just been finished, I guess we'll
have to wait a while to see how well it works, at least from NA.
With a synchronous string of pulses, it should be easy to
generate & synchronize same to drive an upstream noise gate &
not have to detect when to blank in the presence of numerous
signals pushing the better part of -10 dBm. Otherwise, not much
use for that ID timer if we're switching the rig off & giving it all a
miss. ;^)
73, VR10BrettGraham/p.
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
