I'm working the 160 contest and am wondering if there's some hint to
help me overcome pumping from nearby stations. I am using the 8 pole
2.8K, 1K 250Hz filters on CW. I'm mostly tuned down to 50Hz as
that's what I need to do to find the DX that's being covered by the
local stations calling
Gary,
If your AGC is getting pumped by nearby stations even with the 250-Hz
filter engaged, it's almost surely due to excessive transmit bandwidth
on the part of those stations. Their keying sidebands may extend far
beyond their carrier frequency. This is a common problem with rigs that
have
- Original Message -
From: Gary Smith g...@doctorgary.net
To: Elecraft@mailman.qth.net
Sent: Saturday, January 24, 2009 10:20 PM
Subject: [Elecraft] Pumping with K3
I'm working the 160 contest and am wondering if there's
some hint to
help me overcome pumping from nearby stations. I
Thanks for all the replies. I'll try to answer them all here.
I did not have the Pre off nor the attenuator. I'm still not sure how
to get the K9AY as an RX ant preamped on the K3 and not the Inverted
L. The K9AY needs more pre. I do have the sub.
I tried to run the K9AY through the KXV3 as I
Gary, have you tried backing off the RF gain? For me, I try to use the
minimum gain I need at the time, and that seems to help (might only be
my perception). Of course, it does nothing if the other guy is too
wide, clicking and splattering, etc.
73 de Dave, W5SV
Gary Smith wrote:
I'm
Hi,
Yes, I usually run with the RF gain down to keep the major qrn down
on 160 80. For the other bands I leave it fully clockwise.
The changes I've made (thanks to the suggestions here) seem to be
helping somewhat. That's a plus so I'll experiment some more.
I really appreciate the help.
...@elecraft.com
To: g...@doctorgary.net
Cc: Elecraft@mailman.qth.net
Sent: Saturday, January 24, 2009 5:42 PM
Subject: Re: [Elecraft] Pumping with K3
Gary,
If your AGC is getting pumped by nearby stations even with the 250-Hz
filter engaged, it's almost surely due to excessive transmit bandwidth
Oops, that's SMTR MD AbS below.
- Original Message -
From: Guy Olinger, K2AV olin...@bellsouth.net
To: wayne burdick n...@elecraft.com; g...@doctorgary.net
Cc: Elecraft@mailman.qth.net
Sent: Saturday, January 24, 2009 8:03 PM
Subject: Re: [Elecraft] Pumping with K3
Gary,
First off
-
From: Gary Smith g...@doctorgary.net
To: Elecraft@mailman.qth.net
Sent: Saturday, January 24, 2009 10:20 PM
Subject: [Elecraft] Pumping with K3
I'm working the 160 contest and am wondering if there's
some hint to
help me overcome pumping from nearby stations. I am using
the 8 pole
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