[Antennas] (no subject)
Ron W7MRR
[email protected]
2002年3月27日 12:27:13 -0500 (EST)
Hi Paul:
What you have now is a vertical with elevated radials. You have to go at least 1/2 wavelength off the ground on your chosen band to be able to categorize the antenna as a true ground plane. One thing is for sure, the higher your radials are, the more efficient your ground system will become the ground has less influence on overall antenna efficiency. In the alternative, as you raise the antenna higher, fewer radials will be required to obtain the same overall efficiency. Of course to get the radials higher typically means your vertical radiator must be higher and height is benefical to a HF radiator.
If you can raise it without too much trouble, I would go for it. You have the potential for gain with little, if any, risk of reduced performance.
Ron W7MRR
--- On Wed 03/27, paul wrote:
> hi guys and gals... a question.. as ham radio operators.. we have a
> reputation of fixing things that are already working pretty well and
> breaking them... i just put up a gap titan dx. the counterpoise is only
> 8
> feet off of the ground however its working dx like there is no tomorrow
> and
> cutting thru pileups with 100 watts.. i am really impressed.. my
> impulse
> is telling me to "get another 20 feet agl"... however the brain
> is saying
> its working great dont fix it... any suggestions? thanks paul w8jn
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