On Sun,3/12/2017 8:56 PM, Jeff Clarke wrote:
This answers the question some people had on how you can have two
stations on the same band without much interference.
It also helps to have very clean transmitters and amps with bullet-proof
front ends. I'm lucky enough to have two towers 200 ft apart, one with a
3-el SteppIR, the other with monobanders for 20 and 15, with a line
between the towers perpendicular to the east coast. When pointed to that
way, their elements are approximately inline. By accident, after adding
the second tower 4-5 years ago, I discovered that I could have both
radios on 20M within about 60 kHz of each other and not have QRM between
them. I run K3s to Ten Tec Titan tube amps at legal limit. And that's
with the ORIGINAL K3s, before the new synth boards, which I added a year
or so ago. I'm also able to run both radios on 10M, one CW and one SSB,
for the 10M contest with another short tower that's not quite as well
located. Pointing one antenna at the other produces a VERY different
result. :)
I've operated with Jeff and John from that station, and crawled through
the brush to help rig Beverages. I agree that the antenna farm I saw is
clearly legal within the rules, and that it would not be difficult to
rig something comparable for the higher bands. And FWIW, when I first
moved here 10 years ago, I had only fan dipoles for 20/15/10 and found,
again by accident, that my 550 ft EU/VK Beverage heard EU pretty well on
20M.
73, Jim K9YC
_______________________________________________
CQ-Contest mailing list
CQ-Contest@contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest
|