Re: [TowerTalk] Source for AB-577

[Rick Stoneking <w2rds@arrl.net>]

For what it is worth I offer the following:

The first time I put up my AB-577 I only put up 7 of the 8 sections - I was 
putting up an A3S tribander by myself in a fair amount of wind and I 
chickened out after 7.  The next time I put it up, again by myself but 
without the wind, and I was committed to going all the way up.  After 
putting in the 8th section and starting to crank it up it began to get 
really 'heavy'.  When I finally decided something was wrong and looked up 
the tower sections were curved in a 'C' towards one of the guy wires.  I 
had forgot to let out more cable on the top guy and it was still set for 7 
sections!!  After seeing how much bend, and how much force (the offending 
guy wire was very tight - I had made it almost all the way up) those clamps 
can take I do not worry about the clamps coming loose while I am raising 
the antenna - even in a fair amount of wind.

With that said I certainly would not advocate not guying the tower, but the 
clamps are quite strong.

Rick
W2RDS

At 03:26 PM 9/5/03 -0400, Bob Willis wrote:
> I echo that opinion.. we put up 3 - 5 ab-577's each year for field day and
> for various other contests and
> I can tell you that without guys....its only slightly better than a wet
> noodle.
> WJ1Z ~ BOB
> W1MOO ~ FD
>
> ----- Original Message -----
> From: "Dick Green" <dick.green@valley.net>
> To: "'Michael Tope'" <W4EF@dellroy.com>; <towertalk@contesting.com>; "'Mike
> Gilmer - N2MG'" <n2mg@contesting.com>
> Cc: <paule@sfu.ca>
> Sent: Friday, September 05, 2003 2:26 PM
> 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
> >
> > > -----Original Message-----
> > > From: Michael Tope [mailto:W4EF@dellroy.com]
> > > Sent: Friday, September 05, 2003 11:04 AM
> > > To: towertalk@contesting.com; Mike Gilmer - N2MG
> > > Cc: paule@sfu.ca
> > > Subject: Re: [TowerTalk] Source for AB-577
> > >
> > >
> > > How "stiff" is the AB-577 relative to say a Rohn push-up
> > > mast? I need something that I can house bracket to the eave
> > > of the house at the 20ft level, that would be stiff enough to
> > > support the center of an 80 meter inverted-V at 50' without
> > > any additional guys or supports above the 20' level.
> > >
> > > I am looking for something "psuedo temporary" (hence the
> > > mast) to hold me over until I can get through the cities
> > > tower permitting process. My Rohn E50 push-up mast is just
> > > too flimsy and only extends to a max height of 40' feet.
> > >
> > > Thanks!
> > >
> > > Mike, W4EF................................................
> > >
> > >
> > > ----- Original Message -----
> > > From: "Mike Gilmer - N2MG" <n2mg@contesting.com>
> > > To: <towertalk@contesting.com>
> > > Cc: <paule@sfu.ca>
> > > Sent: Friday, September 05, 2003 5:56 AM
> > > Subject: [TowerTalk] Source for AB-577
> > >
> > >
> > > > A quick search in eHam.net's links yields
> > > >
> > > > http://home.att.net/~surplusben/
> > > >
> > > > VA7NT wrote:
> > > > > Anyone know a source for AB-577's?
> > > >
> > > > ________________________________________________
> > > > PeoplePC:  It's for people. And it's just smart.
> > > > http://www.peoplepc.com
> > > > _______________________________________________
> > > >
> > > > 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
> >
>
>
> _______________________________________________
>
> 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.

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