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[TowerTalk] Upside down mast

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Subject: [TowerTalk] Upside down mast
From: donovanf@sgate.com (Frank Donovan)
Date: Thu, 3 Jul 1997 20:10:51 -0400 (EDT)
Hi Richard!
Yes, I tried it over 20 years ago, and it works fine.  Since that time
I've gone to a multi-tower station, so no need for those trix any more.
My lower mast had a large 20 meter monobander mounted on it.

Be sure you use masts with adequate strangth (especially the "regular"
mast thru the tower).  Just as in your drawing, I used two short
horizontal masts and lots of u-bolts to attach the lower mast to the
"regular" mast.

73
Frank
W3LPL
donovanf@sgate.com

On Thu, 3 Jul 1997, Richard M. Thorne wrote:

> I've been doing alittle thinking on masts.  A while back someone
> told me about, what I call an upside down mast.  It looks like this:
> 
> 
>                       |
>                       |
>                       |
>                       | <----Regular Mast
>                    ___|
>                    |  |
>                    |__|
>                    | | | <-----Tower
>  Lower Mast--------> | | |    
>                    | | |
>                      | |
>                      | |
> 
> This is not a very good illustration but hopefully it depicts my 
> thoughts.  Basically its similar to a side mount except that another
> mast is going down (assume the top 10' of tower is unguyed).
> 
> Has anybody tried this?, it maybe a good way to maximize the mast 
> that you have.  I was thinking of putting a tribander on the top mast
> and a 2 element 40 on the lower mast. 
>       
> 73,
> Richard Thorne - WB5M


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