[Antennas] Elevated Vertical

wx5l at charter.net wx5l at charter.net
Tue Mar 22 10:36:38 EST 2005


Hello,

Very interesting discussion about elevated radials. I have always felt elevating the vertical helps with surrounding clutter(trees ect)and also it helps reduce ground losses with the radials sloping down. Sloping them down increases the input impedience closer to 50 ohms.

I have a Butternut HF2V(with 30 meter coil) elevated with radials. I purchased a 30 foot push up pole from Home Depot but only use 20 feet to decrease the difficulty in the  tuning process as I have only one section to push up. I do believe it best to tune in it final height. If I had a grid dip meter I would tune it but I may try and use my MFJ 289 antenna analyzer with a test jig to tune the 1/4 radials.

73,
Randy
WX5L  
> 
> From: "Richard Brunner" <rbrunner at gis.net>
> Date: 2005/03/22 Tue PM 12:46:03 GMT
> To: <antennas at mailman.qth.net>
> Subject: Re: [Antennas] Elevated Vertical
> 
> Gary wrote:
> > I am considering putting up a Butternut HB9 vertical.  I am thinking about 
> > mounting it atop a 40 or 50 foot mast with the radials fanned out around 
> > it.  Is there any advantage to getting this kind of height or am I better 
> > off to mount it closer to the ground?
> 
> Only one additional comment:  I have a HF9-VX, and it works fine, but is 
> critical to adjust.  Adjusting it in-place works fine and is fast, but if 
> you take it down to make adjustments you won't live long enough to finish. 
> Mine is mounted 10 feet above ground, with counterpoise, and is low enough 
> to adjust in-place. (with wooden ladders)  It won't be easy mounted 40 or 50 
> feet up.
> 
> Richard Brunner, AA1P 
> 
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