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#11
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5/8 wave for 20 meters
Yea that's what I was expecting you to say. I can remember seeing
descriptions of this "as if the ground plane is folded down around the coax" I think I might try this ;-) Thanks again all! de ka2pbt Cecil Moore wrote: John Popelish wrote: Cecil Moore wrote: *******************+ ********************+ | ====================+======== 1/4WL +--------------------------------- coax | ====================+======== *******************+ ********************+ I don't understand how this would work. Now that you mention it, neither do I. I just copied it from the 1993 ARRL Handbook, Fig. 3, on page 14-4. I do know how it works when feeding a balanced antenna. Let me redraw it with one that I know works. *******************+ +******************** choke | +================================= 1/4WL +--------------------------------- coax | +================================= *******************+ +******************** choke |
#12
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5/8 wave for 20 meters
Cecil Moore wrote:
John Popelish wrote: (snip) I don't understand how this would work. Now that you mention it, neither do I. I just copied it from the 1993 ARRL Handbook, Fig. 3, on page 14-4. I do know how it works when feeding a balanced antenna. Let me redraw it with one that I know works. *******************+ +******************** choke | +================================= 1/4WL +--------------------------------- coax | +================================= *******************+ +******************** choke That is what i was trying to describe, and makes sense to me. Thanks for drawing it. |
#13
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5/8 wave for 20 meters
ORIGINAL MESSAGE:
On Tue, 20 Jun 2006 11:52:32 +0000, Rob Roschewsk wrote: If I want something made of wire, and omni directional what would be my best bet? Inverted-V ? *********** REPLY SEPARATOR *********** An inverted vee with the apex angle at about 90 degrees is almost perfectly omnidirectional. Bill, W6WRT |
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