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Re: New Antenna



I have the same question:

In order for that antenna to have proper gain at UHF, the elements would 
appear to need to be "swept forward" in a V, much like a TV antenna. I'm 
confused by its design.

...hasan, N0AN
----- Original Message ----- 
From: "Robert Bruninga" <bruninga@usna.edu>
To: <amsat@amsat.org>; <amsat-bb@amsat.org>; <fparker@paulbunyan.net>
Sent: Wednesday, June 28, 2006 8:51 AM
Subject: Re: [amsat-bb] New Antenna


> Fred,
> I'm curious how this antenna performs on UHF?
> All the elements appear to be about 1/4 wave on 2m
> and I dont see any taper to  shorter UHF elements?.
>
> Presumably the elements are acting as 3/4 wave
> elements on UHF, and I can understand how they
> could be resonant, but I wonder how they can
> also then have good forward gain, given that broadside
> to a 3/4 wave antenna is usually not the peak gain direction.
>
> But maybe you have come upon a working solution
> that works "outside the box" of conventional thought
> about log periodics and this could really be a neat
> approach to dual band operation.
>
> You ad mentions 9 dBi gain, but it does not specify
> separate gains for VHF and UHF which usually are
> different.  Can you clarify the two gains?
> thanks.
>
> Bob, WB4APR
>
>
>>>> "Fred A Parker" <fparker@paulbunyan.net> 06/28/06 3:27 AM >>>
> Sorry but Ebay pulled the first listing. Seems some antenna manufactures 
> do
> not like compatition.   My intentions on this project is.   After lengthy
> discusion with Amsat oficials while working on the Eagle Modules was to 
> try
> and help to bring new satellite users a less exspensive means to get on 
> the FM
> Birds.   I relisted it again Per Ebay Rules.
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=250002570306
> Sorry again.
>
> Fred  KF0AK
> ----
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