[Boatanchors] Off Topic Antenna Question
Rob Atkinson
ranchorobbo at gmail.com
Sat Jun 4 08:58:31 EDT 2011
I don't know what an eagle one is, but if it is like most verticals it
probably needs radials to work well.
re the inverted V, why not bring the twin lead directly in to a
johnson matchbox and forget about using a balun?
you might get all band 10 to 40 meter use with the inverted V that way.
some hams have used a low profile (mobile) screwdriver antenna. Not
great but he could talk to you for example. You have the mount with
a few radials and stick the screw driver antenna into it when you want
to use it and remove it when you are QRT.
73
Rob
K5UJ
On Fri, Jun 3, 2011 at 6:23 PM, Bill Stewart <cwopr at embarqmail.com> wrote:
>
>
> Good evening all.
>
> I hope this isn't too far OT and tnx for reading.
>
> A good friend lives in a town house complex with one on each side of his. We are trying to put up some type of stealth antenna. So far he has a Eagle One vertical, which is just a wire in a telescoping fiberglass pole. The wire/pole, at full extension, is about 31 or so feet. This antenna is mounted on a small deck (on first floor...shack on second floor). Initial tests have not been very good with the Eagle. We are gonna try an inverted vee using the fiberglass pole as a center support, with the ant. ends going to the ends of the deck and parallel to the house...the distance to the wall is only about 10-12 feet, and probably feed it with mini ladder line (300 ohm I think). I think we can squeeze in a 40 mtr inv. vee. He would like to use this antenna on 40-10mtrs if possible. He would like to use coax to get thru the wall and to the tuner. I guess some type of balun will be required.
>
>
>
> My main question is does the ladder line need to be a specific length & what type of balun should be used....4:1? Due to the small deck size, the antenna will be only about 10-12 feet away from the rear wall and the shack...not a good situation. Also, the antenna will need to be brought down to deck level when not in use.
>
>
>
> Tnx for any advice on the ladder line situation.
>
> 73, Bill K4JYS
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