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Bob, like I said in a previous post, right now I think the AP is an end fed 1/2 wave radiator. IMO, the first 1/4 wave radial element under the feed point is working against the mast as a non radiating feeder device, and transitions via the hoop to feed the end of the 1/2 wave radiating element that is opposite the feed point side of the hub. I’m also inclined to believe the AP is a 1/2 wave, because the antenna is used as a driven element for the AP beam. Another factor in my thinking is---we don’t typically see CB beams using 5/8 or 3/4 wavelength radiators as driven elements. In such cases we do see 1/2 and full wavelength elements used almost exclusively and this probably has a lot to do with the physical symmetry of the 1/2 wave radiating element. I’ve change my mind before on this issue, so I’m open for new ideas.

I may have a source for this article, maybe the whole book.

Bob, I don’t understand this last issue well enough to really talk about it. Maybe we can talk soon.

<blockquote data-quote="Marconi" data-source="post: 207494" data-attributes="member: 903">Bob, like I said in a previous post, right now I think the AP is an end fed 1/2 wave radiator. IMO, the first 1/4 wave radial element under the feed point is working against the mast as a non radiating feeder device, and transitions via the hoop to feed the end of the 1/2 wave radiating element that is opposite the feed point side of the hub. I’m also inclined to believe the AP is a 1/2 wave, because the antenna is used as a driven element for the AP beam. Another factor in my thinking is---we don’t typically see CB beams using 5/8 or 3/4 wavelength radiators as driven elements. In such cases we do see 1/2 and full wavelength elements used almost exclusively and this probably has a lot to do with the physical symmetry of the 1/2 wave radiating element. I’ve change my mind before on this issue, so I’m open for new ideas.&nbsp;I may have a source for this article, maybe the whole book. &nbsp;&nbsp;&nbsp;Bob, I don’t understand this last issue well enough to really talk about it. Maybe we can talk soon.</blockquote>

[QUOTE="Marconi, post: 207494, member: 903"] [COLOR=black][FONT=Verdana][/FONT][/COLOR] [FONT=Arial Narrow][SIZE=3]Bob, like I said in a previous post, right now I think the AP is an end fed 1/2 wave radiator. IMO, the first 1/4 wave radial element under the feed point is working against the mast as a non radiating feeder device, and transitions via the hoop to feed the end of the 1/2 wave radiating element that is opposite the feed point side of the hub. I’m also inclined to believe the AP is a 1/2 wave, because the antenna is used as a driven element for the AP beam. Another factor in my thinking is---we don’t typically see CB beams using 5/8 or 3/4 wavelength radiators as driven elements. In such cases we do see 1/2 and full wavelength elements used almost exclusively and this probably has a lot to do with the physical symmetry of the 1/2 wave radiating element. I’ve change my mind before on this issue, so I’m open for new ideas.[/SIZE][/FONT] [COLOR=black][FONT=Verdana][/FONT][/COLOR] [SIZE=3][FONT=Arial Narrow]I may have a source for this article, maybe the whole book.[/FONT] [/SIZE] [COLOR=black][FONT=Verdana][/FONT][/COLOR] [FONT=Arial Narrow][SIZE=3]Bob, I don’t understand this last issue well enough to really talk about it. Maybe we can talk soon.[/SIZE][/FONT] [/QUOTE]

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