[TowerTalk] Hustler 5BTV Problem and their servicing.

[Dan Schaaf]

David

Look really hard at the HyGain AV-640. I have been using one for 5 years. It 
is a winner !!!
3/8 wave vertical which gives low angle radiation.
No radials.
You can mount it 7 ft above ground for counterpoises to clear the walking 
space.
I have 308 countries from it.

Best Regards
Dan Schaaf
K3ZXL   www.k3zxl.com   "In the Beginning, there was Spark Gap"
===============================
NOBSKA
www.nobska.net
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Cape Cod Instruments
www.oceanbiz.net
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----- Original Message ----- 
From: "David Jordan" <wa3gin at comcast.net>
To: "'Tower and HF antenna construction topics.'" <towertalk at contesting.com>
Sent: Thursday, January 21, 2010 2:27 PM
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 at contesting.com
> [mailto:towertalk-bounces at 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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