At 07:50 PM 11/13/97 -0500, Charles H. Harpole wrote:
>If I were to purchase a beam kit that had riveted elements , and I put it
>all together as per factory directions, including putting in the rivets,
>and then I discovered that the beam was not "right on" --- I would be
>royally pi---ed and angry as well. Bad enuf to try to change hose
>elements, but drilling a new hole, etc. would really honk me off ,
>especially if the beam came so highly touted, and I followed the factory
>directions to the letter. Too many stories of post-construction re-tuning
>for me. de K4VUD
With all due respect, Charles, I think you are being just a tad too hasty
to condemn Force 12 based on Richard's posting. He mentioned that he had
to shorten a 15 meter element to bring the SWR null up a little in
frequency... but you may not know that the 15 meter driver has 3 settings.
You get to pick where you want the antenna to resonate in that band (+/-
125Khz from center freq). And there are 4 settings for the 10 meter band.
Without knowing which settings Richard used, it's hard to know what the
In addition, I understand that Richard is installing the antenna on the top
of an office building. Perhaps in his particular situation there is
something nearby that is throwing off the SWR.
Or... maybe there really is a problem. But solely based on Richard's
message, we really don't know.
You also mentioned that you'd "be royally pi---ed and angry as well" if you
put together the antenna per instructions and it wasn't 'right on'. I'm a
rookie at this, but does one ever put a compromise antenna up the first
time (even per specs) and it's 'right on' on all the bands?? Seems
unlikely to me based on the many variables (other objects nearby, height,
ground conditions, etc.).
I am in the middle of building a C4XL and every ham that has stopped by to
help out (or sit and admire it) has been very impressed with the
sturdiness, attention to detail, ease of construction, and the nice thick
instruction book. Even the organized way it was shipped was impressive to
me. All elements were not just marked -- they were taped and nested together.
The only thing I could suggest to improve the installation would be to have
better close-up photographs of how to put together the 40 meter tuning.
Tom at Force 12 has told me that he will have such photographs available
shortly (on his web site at least).
I have almost two decades of appliance operating under my belt, and I can
assure you I am NO antenna expert!! But I sure like what I've seen so far
with my C4XL. Now if we can just get some above-freezing weather, I can
get this thing up the tower (I'm a cold weather wimp -- yes, I know I live
73 - Scott KA9FOX
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