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#1
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Hi Fred,
Yes.... sorry for not being more specific, radius. I can go out farther but then it's up in my yard where I mow pretty low. The 5BTV is ~24 feet tall.... I have heard this formula for radials before.... but, is it really meant actual "physical" height of the radiator and traps or is it really meant to be the theoretical electrical length (height) of the radiator ? And... I got the antenna and mounting/radial system from DX Engineering. Mike, W9WIS |
#2
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The physical height is fine for a ground mounted vertical. With the DX
engineering kit you can put down a bunch of radials. I was always too poor for all those nifty things. I normally use the lid off of a 55 gallon drum.:) "Michael Melland, W9WIS" wrote in message ... Hi Fred, Yes.... sorry for not being more specific, radius. I can go out farther but then it's up in my yard where I mow pretty low. The 5BTV is ~24 feet tall.... I have heard this formula for radials before.... but, is it really meant actual "physical" height of the radiator and traps or is it really meant to be the theoretical electrical length (height) of the radiator ? And... I got the antenna and mounting/radial system from DX Engineering. Mike, W9WIS |
#3
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On Sun, 17 Apr 2005 15:46:52 -0500, "Michael Melland, W9WIS"
wrote: Hi Fred, Yes.... sorry for not being more specific, radius. I can go out farther but then it's up in my yard where I mow pretty low. The 5BTV is ~24 feet tall.... I have heard this formula for radials before.... but, is it really meant actual "physical" height of the radiator and traps or is it really meant to be the theoretical electrical length (height) of the radiator ? From page 20.20 of my Arrl 2000 Handbook: "...a large number of shorter radials offers a better ground system than a few longer ones. For example, 8 radials of 1/8 wavelength are preferred over 4 radials of 1/4 wavelength. If the physical height of the vertical is 1/8 wavelength, the radial wires should be of the same length and dispersed uniformly from the base." bob k5qwg And... I got the antenna and mounting/radial system from DX Engineering. Mike, W9WIS |
#4
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"Michael Melland, W9WIS" wrote in message
... Hi Fred, Yes.... sorry for not being more specific, radius. I can go out farther but then it's up in my yard where I mow pretty low. The 5BTV is ~24 feet tall.... I have heard this formula for radials before.... but, is it really meant actual "physical" height of the radiator and traps or is it really meant to be the theoretical electrical length (height) of the radiator ? And... I got the antenna and mounting/radial system from DX Engineering. Mike, W9WIS Mike - OK - that sounds like a great setup I have had best luck with running at least 3 or more of the specified length in the Hustler manual. Longer does not seem to improve. w9gb |
#5
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You can bury the radials using a chain saw, or edger, etc. Just slip wire
into slots in the ground. And if you turn on the lawn sprinklers for a few minutes, you may see some improvement. |
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