I'd get the feedpoint a little higher up--around 15 to 20 feet if possible,
and use a few more radials, maybe eight. yes, the length of them is more
critical when they are elevated. They should be cut to 1/4 w. don't
forget to wind some of the coax feedline into a coil near the feedpoint to
isolate the exterior of the coax sheld from the antenna. For 40 meters,
i'd wind around 15 turns on a 6 or more inch diameter form. the size of
the form depends partly on the size and type of the coax you use. I usually
try to not get right at the minimum bend radius because i don't like to
force it on to a tight form and stress it.
rob/k5uj
_________________________________________________________________
Is your PC infected? Get a FREE online computer virus scan from McAfee®
Security. http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|