I've heard one rule of thumb is; keep any two antennas 1/2 wave apart of the
lower frequency antenna. I think in your case you will have to compromise a
bit.
Perhaps start at the top and put a 2m/70cm vertical on it for general FM
use. The vertical may make it a better lighting target though.
>From then on, top to bottom
432
144
50
HF
Perhaps follow the 1/2 wave rule until you get to HF. Then just put is as
low as you can go.
Rotor loop can be a pain. Perhaps run HF coax up first then hang down.
What type of mast are you using?
I've got something like above on my roof.
7 3
Bob
N2SCJ
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of WI8W
Sent: Thursday, October 16, 2003 5:51 PM
To: TowerTalk@contesting.com
Subject: [TowerTalk] antenna spacing
My 50 foot AN Wireless tower was installed last weekend and sometime in the
near future (probably when it is snowing like crazy outside) the antennas
will be installed.
I am planning on installing the following
Cushcraft A3
Cushcraft A50-5
Cuchcraft A144-20T
Cushcraft A719 432 yagi
guess you could say I am a Cushcraft fan.
I have 15 feet of mast above the thrust bearing to play with.
I am looking for suggestions on spacing these antennas. I might be willing
to sacrifice the 2 meter or 432 if necessary
thanks
73
Thom WI8W
_______________________________________________
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
_______________________________________________
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
|