I have this problem occasionally on my sloping Vee for 40, 80, and 160,
and I know it is in the antenna. The V is fed at the top of the tower
with 450 ohm ladder line which connects to the antenna wires with copper
split nuts. Corrosion has slowly occurred, and over time, the band gets
very quiet. A single dit will fix it, and of course, if I continue to
transmit such as in a contest, all is well. Getting it down to fix it
is a serious PITA because of all the trees under it, and I don't know
how much longer we're going to be here, so I live with it. YMMV.
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 2014 Cal QSO Party 4-5 Oct 2014
- www.cqp.org
On 3/25/2014 8:09 PM, Don Wilhelm wrote:
Jan,
Before deciding it is a K3 problem, take a look at your antenna system
coax. If you bought cables from DX Engineering in the past year, be
aware that they had a crimping problem that could result in the bhavior
that you are experiencing. A transmit 'sets it straight', but the RX
diminishes after that.
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