As a part of a package deal, I have just acquired a beam of unknown origin.
It is apparently about 18 years old, judging from dates on other things
that were with it, (the rotor manual has a 1980 date penciled in, and the
date Feb78 stamped on the botom)
there are four elements on an 18 foot boom. The driven element is 26.75
ft. long, and has 2 sets of traps. The forward director is 25 ft long, also
with 2 sets of traps. The reflector is 32.2 ft long, and has only one set
of traps. There is a trapless director that is 17.6 ft long.
The feed is apparently by a small Balun, located under the boom, feeding
the driven element through two stainless straps. The DE is mounted in a
plastic tube clamped to the boom with a plate and U-bolts. The plastic tube
is about 1/4 inch thick. The traps are small, cylindrical, and with
something like "Caplug" caps.
I have not re-assembled the thing yet, and I dont know if the traps and the
feed element are any good. I am hoping to get someones "best guess", at
least, to help in the re-assembly and checking.
Why dont the makers of these things put their names on them in such a way
that the weather wont erase the ID? Not proud of their work ?
Thanks for any help. In the future, I will pay more attention to beams that
I get close enough to see.
Bill- W4BSG
Bill Aycock W4BSG
Jackson County, AL
EM64vr
W4BSG is "vanity" this time, but was
earned by exam in 1954, the first time.
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