Posted by
Jim Brown-10 on
Mar 31, 2017; 11:34pm
URL: http://elecraft.85.s1.nabble.com/Antenna-Problems-with-K3-firmware-5-57-tp7628786p7628790.html
I agree, and you'll need pretty high Q components. Lots of good
capacitor choices at HSC. Another suggestion though. KLIV is omni during
the day, but strongly directional at night. This is quite common on the
AM band. I suggest that you make your strength measurements at night.
Depending on where you are, a different station may be stronger at night
when you're working 160. Here's a link to the FCC website where you can
look up technical details of any broadcast station.
https://www.fcc.gov/media/radio/am-queryAnd here's the listing for KLIV Notice the links near the bottom of each
listing showing pattern and coverage area. The wild distortions in the
coverage area are the result of varying ground conductivity -- the big
thumb over the Bay is because it's sea water.
https://transition.fcc.gov/fcc-bin/amq?list=0&facid=19531Another thought, Bill. A horizontal 160M antenna at 20 ft is a real
worm-warmer, and while 40 ft is better, it's still very low. If you can
do some sort of counterpoise, a top loaded vertical, even if it's short,
could work a lot better.
Here are slides for the talk I've done several times about getting on
160M. It's mostly about antennas and counterpoises. You might have heard
it. :) The K2AV folded counterpoise seems to work pretty well, and
doesn't take a lot of space.
73, Jim K9YC
On Fri,3/31/2017 2:50 PM, Walter Underwood wrote:
> Use a series-tuned “wave trap” on KLIV’s frequency across your feedline.
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