[Towertalk] Brackets for Sidemounting "fixed" antennas

Steve Katz stevek@jmr.com
Thu, 15 Aug 2002 08:23:22 -0700




> Hi Mike, Re-read my e mail, I said " Eventually you will wear THROUGH the
> tower leg." That was in response to his thought that he might mount to ONE
> leg, not two. OK?
> 
	[Steve Katz]  As I posted twice yesterday, I use 2" angle iron
(steel) shims, placed 180 degrees opposing each other, between the round
tower leg and the boom-to-mast plate.  This provides the correct dimension
for the mast plates provided with most HF beams, and also provides a flat,
not round, mounting surface.  In 90mph winds, I've never seen a beam turn
out of position when mounted to a single leg this way.  The angle irons cost
about $2 at Home Depot and are pretty "universal."  I've side-mounted large
beams on single tower legs for many years, including in some very high wind
areas, and have never had a problem when doing it this way.  Obviously, if
two legs happen to line up in the right direction, I'll use two legs!
-WB2WIK/6


> 73, Bruce
> 
> ----- Original Message -----
> From: "Mike Wetzel" <mjwetzel@comcast.net>
> To: "k1my" <k1my@msn.com>; "Steve Katz" <stevek@jmr.com>; "'Mike Gilmer,
> N2MG'" <n2mg@eham.net>; <towertalk@contesting.com>
> Sent: Wednesday, August 14, 2002 8:25 PM
> Subject: RE: [Towertalk] Brackets for Sidemounting "fixed" antennas
> 
> 
> > Bruce,
> >
> > I'm not sure what you are talking about 'wearing thought the leg'?  I
> have
> > had several antennas mounted to tower legs for a pretty long time with
> out
> > any trouble.    The only thing I can guess you mean is if the antenna
> was
> > free to rotate on the leg.  I do support all my fixed side mounted
> antennas
> > from two legs to eliminate this.
> >
> > Mike W9RE
> >
> > > -----Original Message-----
> > > From: towertalk-admin@contesting.com
> > > [mailto:towertalk-admin@contesting.com]On Behalf Of k1my
> > > Sent: Wednesday, August 14, 2002 5:56 PM
> > > To: Steve Katz; 'Mike Gilmer, N2MG'; towertalk@contesting.com
> > > Subject: Re: [Towertalk] Brackets for Sidemounting "fixed" antennas
> > >
> > >
> > > DO NOT do this !!! Eventually you will wear through the tower leg.
> Danger.
> > >
> > > 73, Bruce K1MY
> > >
> > > ----- Original Message -----
> > > From: "Steve Katz" <stevek@jmr.com>
> > > To: "'Mike Gilmer, N2MG'" <n2mg@eham.net>; <towertalk@contesting.com>
> > > Sent: Wednesday, August 14, 2002 1:06 PM
> > > Subject: RE: [Towertalk] Brackets for Sidemounting "fixed" antennas
> > >
> > >
> > > > Mike, why can't you use the normal boom-to-mast bracket that the
> beam
> > > comes
> > > > with, but use a tower leg for the "mast?"  That's what I do...
> > > >
> > > > WB2WIK/6
> > > >
> > > > "If everything seems under control, you're just not going fast
> > > enough." -
> > > > Mario Andretti
> > > >
> > > > > -----Original Message-----
> > > > > From: Mike Gilmer, N2MG [SMTP:n2mg@eham.net]
> > > > > Sent: Wednesday, August 14, 2002 12:05 PM
> > > > > To: towertalk@contesting.com
> > > > > Subject: Re: [Towertalk] Brackets for Sidemounting "fixed"
> antennas
> > > > >
> > > > > Been there... they sell Rohn 55 stuff but no mention of Rohn 25 or
> 45.
> > > > > I've emailed them to see...
> > > > >
> > > > > Just to be clear, I don't need to tweak the antennas in
> > > azimuth at all -
> > > > >  both of my towers were layed out so that one tower face "points"
> at
> > > > > Europe.  So I don't "need" a stubby-mast kind of design which I
> have
> > > > > seen.
> > > > >
> > > > > 73 Mike N2MG
> > > > >
> > > > > W1RG wrote:
> > > > >
> > > > > > Check out DX Engineering...  They do that stuff.....  ;->
> > > > > >
> > > > > > http://www.dxengineering.com/
> > > > > >
> > > > >
> > > > > > Mike Gilmer, N2MG wrote:
> > > > > >
> > > > > > >Does anyone make a bracket for sidemounting a "fixed" yagi
> > > to Rohn 25
> > > > > > >or Rohn 45?  I don't want any rotating devices; I'm picturing a
> > > simple
> > > > > > >plate with holes for U-bolts.
> > > > > > >
> > > > > > >Of course I can make this myself - just wondering if any are
> > > available
> > > > > > >commercially...
> > > > >
> > > > > _______________________________________________
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> > > and take an
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> > > >
> > >
> > >
> > > _______________________________________________
> > > Self Supporting Towers, Wireless Weather Stations, see web site:
> > http://www.mscomputer.com
> > Call 888-333-9041 to place your order, mention you saw this ad and take
> an
> > additional 5 percent off
> > any weather station price.
> > _______________________________________________
> > Towertalk mailing list
> > Towertalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> > _______________________________________________
> > Self Supporting Towers, Wireless Weather Stations, see web site:
> http://www.mscomputer.com
> > Call 888-333-9041 to place your order, mention you saw this ad and take
> an
> additional 5 percent off
> > any weather station price.
> > _______________________________________________
> > Towertalk mailing list
> > Towertalk@contesting.com
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> >
>