[amsat-bb] Eggbeaters--Extending Distance From Radials

[Jeff Moore]

Look up Texas Potato Mashers - I think that is what you are looking for.
They supposedly work a lot better than Egg Beaters but even then, they are
likely a poor substitute for a small beam.

Jeff Moore  --  KE7ACY
CN94

On Tue, Nov 19, 2019 at 10:56 AM Wes Baden via AMSAT-BB <amsat-bb at amsat.org>
wrote:

> New AMSAT member here, hoping to get on the air in the new future.  I'm
> looking at the M2 Eggbeaters and I have a question that perhaps someone has
> thought about already or better yet done some modeling for.  Specifically,
> has anyone replaced the 6 inch standoff mast on the EB-144 with something
> longer, and if so, how long, thus increasing the distance between the
> element loops and radials?  (Also, would this even be possible on the
> EB-432 as it looks like there is no standoff mast and instead the body
> assembly attaches directly to the radial plate?)  My thinking, perhaps
> faulty, is that extending the distance between the element loops and
> radials on both models would have the desired effect of flattening out the
> elevation pattern.  That is, there would be less gain overhead (where
> satellites appear less frequently and high gain really isn't needed) but on
> the other hand gain would be increased in the 15-45 degree range.  Has
> anyone modified the Eggbeaters in this way?  Alternatively, has anyone
> modeled Eggbeaters with longer standoff masts?  Is there an optimal
> distance for standoff masts for both models, for using satellites that are
> on the air at the present time?  Thanks!  Wes NA1ME.
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