[SOC] g5rv as dummy load

[Adrian Rees]

I agree with Louis's ideas about lowering or raising the height of the antenna to achieve a better match....... with some reservations. These being that the antenna is at a height of at least a quarterwave above ground on the frequency of concern, otherwise below a quatertwave, there are no real advantages to be gained by adjusting height.
 
I have used a 256 Foot Doublet (ie 128 Foot /Leg dipole, fed with 66 foot of 450 Ohm feeder) in the European Field Day contest each September, for the last few years. I raise or lower the height of the antenna  , and move the feed point horizontally, to achieve gain in specific directions / good matches. 
 
I will leave you guys to figure out the how & why of this arrangement, but it works. European Field Day is a 24 Hour Team contest, Portable style. I usually bag a top 3 place in the restricted section, even though I am a single op & operate for 18 hours. (Sleeping SOC style for 6 hours !!!)
 
73
 
Adrian MW1LCR

________________________________

From: soc-bounces at mailman.qth.net on behalf of D.J.J. Ring, Jr.
Sent: Fri 06/08/2010 17:41
To: Second Class Operators' Club
Subject: Re: [SOC] g5rv as dummy load



It is interesting that Louis Varney, G5RV / CX5RV suggested lowering and
raising the antenna to achieve good power accepting characteristics (lower
SWR).

Here is an article about the antenna.  http://www.qsl.net/aa3px/g5rv.htm

Louis was very active from CX5RV for many years, I worked him there often
but I never did manage to work him when he was back in England.

73

David N1EA
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