OK!
Please let me know the right measures for a 2 el three band 10-15-20
quad.
73,
Jukka OH6LI
> Van K7VS
...
>
>I have been using a quad since 1967. And never looked back! The first
one
>was a two element quad made by Gotham (Anyone remember that company?)
And >a snowstorm took that one down the weekend of the ARRL DX cw
contest in >1968.
>Since then, have used a Gem Quad with great sucess in the contests over
the
>years. Only need FR/G to be on "top of the honor roll." Have a
three
>element in the air now and have a four element Gem quad in the rafters
in
>our garage. Only thing I have every done is use coax matching xfmrs on
the
>the three driven elements with a remote heathkit antenna swtich. 73 es
gud
>dx. Van, K7VS in Medford, Oregon
...
>> I helped K0XN construct a
>> two element Quad and then we spent a lot of time tuning it. When ARRL
>> version was first published, I found to my surprise that their
computer
>> generated dimensions were within 1% of the dimensions that we had
dervied
>> experimentally. I'm currently using the same antenna at 55 feet and
have
>> been very happy with it's performance. One note of caution
here....the
>> published dimensions are for bare wire. If you use insulated wire (to
>> protect against polutants, salt, etc.) be aware that insulated wire
has a
>> slower velocity factor than bare wire. The effect is on the order of
2%.
>> 73 Steve K0SR
_______________________________________________
CQ-Contest mailing list
CQ-Contest@contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest
|