I just found an old Assembly Instructions publication from CushCraft on my 4
element 10 meter beam...model no. A28-4. It says as a general rule "When
stacking dissimiliar beams on the same mast use a spacing equal to half the
boom length of the longest antenna. In no case should the spacing be less
than 6 foot.
No explanation as to how this was calculated.
George W7LFD
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 96 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
|