[TowerTalk] Speaking of AV-640

[Dan Schaaf]

Gregg

I use an AV-640. The feedpoint box is 7 ft above ground. Any closer and the 
tips of the droopy radials get close to the ground and that is not 
recommended.

It stands out in the open on a tilt over base, similar to the one GAP sells.

I worked recently into D64K Comoros Island and into 9M4SLL Spratly Island on 
30 meters with it. Both approx 9,000 miles from here in different 
directions.

I also have a full 1/2 wave vertical on 40 and the two antennas perform 
equally well .

Mounting it at a shed or house will be tricky. Especially when you have to 
raise and lower it to make the tuning adjustments. That is why I use the 
tilt over base. The antenna is easily walked down once the retaining pin is 
removed on the base.


Best Regards
Dan Schaaf
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K3ZXL www.k3zxl.com
60 Meters www.60metersonline.net
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-----Original Message----- 
From: Gregg Seidl
Sent: Wednesday, August 15, 2012 8:54 PM
To: TowerTalk at contesting.com
Subject: [TowerTalk] Speaking of AV-640

I haven't used a vertical in decades and those were ground plane types when 
I was a poor young novice.
I bought an AV-640 to use as a back-up or second antenna and I'm wondering 
what seems to work best at mounting it.I have several choices:ground mount 
it with the bottom being 5 or so feet off the ground. Mount it to the side 
of my metal shed with the bottom 5 or so feet from the top of the shed,this 
would place the base about 24 feet above the ground and out in the open but 
it would be 50 feet or so from the 14.4Kv line to our transformer. Third 
choice would be to mount it about 15 feet or so up on a metal pipe that 
would be guyed and cemented in the ground. I want to try SO2R on RTTY only. 
I am totally deaf in one ear so I can't do SO2R on SSB and I'm not good 
enough on CW. Any thought or ideas would be great.

Gregg K9KL
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