> And they'll tip over in a strong wind.
This is one of the reasons the TV news vans don't use masts
bigger than 52/56' on a Ford F-350 or Mercedes van chassis
and generally include "stabilizing jacks" at the rear corners
for the big masts. The few news vans built on minivan and/or
SUV chassis were generally limited to 25 to 30 foot masts.
73,
... Joe Subich, W4TV
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of jimlux
> Sent: Monday, April 19, 2010 6:55 PM
> To: Tower and HF antenna construction topics.
> Subject: Re: [TowerTalk] Will-Burt pneumatic mast repair
>
>
> edmund weber wrote:
> > Greetings to the List,
> > These air driven masts are most often seen mounted in Ford one
> > ton vans
> > equipped with TV microwave link gear.These masts will go to
> 40-50 feet
> > un-
> > guyed with a truck mounted compressor
>
> And they'll tip over in a strong wind. I was doing the
> calculations for
> a mast next to a car, attached to the roof rack, and I was
> surprised at
> how non-wind-resistant these schemes are.
>
> http://home.earthlink.net/~w6rmk/antenna/mastcar.htm
>
>
>
>
>
> _______________________________________________
>
>
>
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