I have had an AB-577 here in Florida with a dipole (double size
G5RV) only on the top for about two years. The bottom two sets
of guy wires (top of the launcher and about 27') are installed
but I have nothing other than the wire at the top. I put it up
"for a few days" to test the antenna ... but circumstances
intervened.
If one were able to attach insulators to the top guying assembly
and install two dipoles at right angles, a bracketed installation
might work. However, one would want to install in absolutely
calm weather and use the "launcher." AB-577 mast absolutely can
not be "walked up." The size of the "launcher" would require a
fairly large overhang (or very deep bracket) in a bracketed
configuration.
73,
... Joe, K4IK
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of Dick Green
> Sent: Friday, September 05, 2003 2:26 PM
> To: 'Michael Tope'; towertalk@contesting.com; 'Mike Gilmer - N2MG'
> Cc: paule@sfu.ca
> Subject: RE: [TowerTalk] Source for AB-577
>
>
> In my opinion, the AB-577 is not stiff enough without guys,
> even if the first 20 feet are bracketed. Each section is about
> five feet in length, and they are connected with circular metal
> spring clips. Even without a load on top, a very strong wind will
> likely bend the 30 feet of tubing above the house enough to pop
> one or more of the spring clips.
>
> 73, Dick WC1M
>
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