Hi John,
Had thought about that, but the beam is already in place on the tower and I
would have to dismantle it on the tower and lower to create a new boom
splice (there are trees around which prevent lowering and raising the beam
intact). And then I'd still need to provide a mast for the boom support wires.
73/Jon AA1K
At 12:27 PM 9/4/02 -0500, you wrote:
>Why not slip a smaller diameter tube inside the boom and make a coupling
>joint clamping it with four bolts to eliminate the boom to mast clamp.
>
>John
>----- Original Message -----
>From: "Jon Zaimes AA1K" <jon.zaimes@dol.net>
>To: <towertalk@contesting.com>
>Sent: Wednesday, September 04, 2002 11:36 AM
>Subject: [Towertalk] Hy-Gain Explorer 7-3, Ring Rotor questions
>
>
>One of my top boom support cables on a Hy-Gain Explorer 7-3 snapped. These
>four cables are attached on the director and reflector elements, 10 inches
>out from the center of the boom.
>
>The manual specifies these be attached to the mast 5 feet above the boom.
>They are steel -- I'm not sure if it is stainless or galvanized -- without
>insulators.
>
>If the mast connection point is higher or lower than 5 feet, will this
>affect the tuning of the elements?
>
>If the cable is changed to a nonconductive material (such as Phillystran),
>will this affect the tuning of the elements?
>
>Also, I am getting ready to mount this beam on a TIC 1022 Ring Rotor (on
>Rohn 45, where it has been fix-mounted toward Europe). Since the Hy-Gain
>boom-to-mast bracket also serves as the coupling for the boom, I am
>planning to use some spacers (likely treated wood) to keep the boom high
>enough off the ring-rotor cradle so the bracket clears the cradle. The
>boom-to-mast bracket will also then be used to support a 5-foot mast to
>which the boom support cables will be attached.
>
>If anyone has used this type of mount, or has other thoughts on mounting
>this beam on a Ring Rotor, I wuold appreciate your ideas.
>
>73/Jon AA1K
>Delaware
>
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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.
>_______________________________________________
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>
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