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Date: | Sun, 18 Jul 2010 19:01:29 -0600 |
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Ok on all, Steve, and I'll keep you posted.
I have a goal to get up and running by the NAQP CW contest the first
week-end in August, but don't know if I'll make that one.
If not from the house, I am sure I could make a go of it from the RV with
the TS480 out there and the screw-driver antenna.
Will just depend on how quickly I can make a reasonable decision, order any
stuff I might need, and get the help that will be required to put things up.
I am still puzzling over center supports, so if you have any ideas in that
regard, I'd love to hear them.
I do have the place where the tower originally was, and I think there might
even be a bracket or two there I can use, if I can find a reasonably-priced
mast or telescopic pole to use.
73 from Tom Behler: KB8TYJ
----- Original Message -----
From: "Steve Forst" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, July 18, 2010 5:07 PM
Subject: Re: need some input on wire antennas for the Michigan House
Tom,
I never used the Cobra. Perhaps one of the other Steve's on the list.
Over the past few years I've used 2 of the shortened dipoles from Hypower
Antenna Company in Pennsylvania. The current one up is full size for 80
and shortened for 160 with a total length of 164 feet. A 40 meter inverted
Vee is fed from the same feedpoint.
Also had a off center type up for a while, but it's unbalanced design gave
me RF problems causing the SS amp to trip on 80 and 40 meters at anything
over 400 watts.
As for the coax loss: Don't get too bent out of shape over it. Of course
the higher the freq and longer the run, the more it comes into play.
Another consideration for dipoles is the weight and visibility of the
larger coax.
I currently use Davis RF Bury-flex. Of course it's been several years and
I'm sure the price has gone up since I bought it.
73 and good luck with the move and new set up, Steve KW3A
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