[TowerTalk] Sidemount yagis

[K7LXC@aol.com]

In a message dated 04/03/2000 5:05:19 PM Pacific Daylight Time, 
WD4K@Bellsouth.Net writes:

> I would appreciate some opinions on sidemounting rotating gate type mounts
>  for large yagis on Rohn 25. Conditions: Tower is 74', guyed at 64', 3 sets,
>  Top two are Philly and bottom is 1/4EHS at abt 32', just under where the
>  gate will be mounted. Want to mount a C31XR at this level, 85lbs. Other
>  option is a long mast with ground mounted rotor with tower standoffs. Any
>  advice from anyone with any experience with KT34's, C31's or similar yagis
>  would be VERY welcome!  Replies to me directly are probably best and I will
>  be happy to summarize to anyone interested.

      I think the *magic* dimension between elements is about 31 inches. If 
you split the difference, there's about 15 inches from the clamp to the 
nearest element. I know that a TH7DX (19 inches from the clamp to the nearest 
element) will turn around 45G which is 18" across the face. So the best I can 
do is give you a "maybe" without building a fixture and trying it out. Sorry.

     What else is going to be on the tower? That 25G @ 70 MPH will take about 
15 sq.ft. total and one C31XR is 10.7 ft2. Doesn't leave much left over.

Cheers,   Steve   K7LXC
Tower Tech

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