If 80 is not mandatory, then the AV640 might be a better choice.
73, Dick, W1KSZ
> From: wa3gin@comcast.net
> To: towertalk@contesting.com
> Date: Thu, 21 Jan 2010 14:27:26 -0500
> Subject: Re: [TowerTalk] Hustler 5BTV Problem and their servicing.
>
> Our club mounted this antenna on top of the County Court House roof which is
> copper for 100ft in all directions. It won't load worth a damn. I guess it
> was never designed to operate over a almost perfect conducting ground plane.
>
> All the bands resonate low in out of the ham bands. We're going to have to
> cut the lower most portion to bring them up in freq. That is a good thing
> because the lower portion mast is thin-wall soft aluminum which bent the
> first time we had over 30mph winds. Replaced that portion and it bent
> again. We asked DX Engineering to provide us with a thick-wall mast but no
> joy. So, if you are going to roof mount the beast consider guying it at the
> mid-point or find a way to beef up the mast below the 10m trap.
>
> We also found that the trap camps do not grip the well using the hose
> clamps, in fact the hose clamps fail when attempting to achieve enough
> compression to maintain a tight fitting. Not impressed with the current
> physical implementation of this antenna.
>
> We're looking for an alternative solution for this wonderful vertical
> antenna location. The roof is about 400ft ASL.
>
> 73,
> Dave
> Wa3gin
>
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of Michael Baker
> Sent: Thursday, January 21, 2010 12:12 PM
> To: 'Tower and HF antenna construction topics.'
> Subject: Re: [TowerTalk] Hustler 5BTV Problem and their servicing.
>
> This can be a problem depending where you live because of corrosives
> in the air, and exposure to them.
>
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