Had forgot about the DDRR -- After further checking , the geometry of it,
and the Excalibur, they are really the same antennas, just that the DDRR is
formed into a circle, while the Excalibur is a straight line
The Excalibur looks like : __X__________________
/__X__________________
, with the middle open, 1/4 wavelength long

and as stated,

"X's" would be the feedpoint !
is a "slot" antenna . These are related to aircraft antennas, where , a
slot is cut into the frame, and then fed with R.F. You don't see it, as it
is covered with fabric, plastic, or some other non-conductive media !
As a further aside, is used , in bombers, extensively, and have arrays of
these , stacked in phase!!
reason is if one, or 2 shot out, the antenna will still work, literally
until the plane is destroyed!
As info, Jim NN7K



"Phil" wrote in message
...
You might consider a DDRR antenna. See
http://www.antennex.com/preview/2mddrr.htm. They are available
commercially,
too.

Phil, KB2HQ

"Bob Miller" wrote in message
...
On Sun, 15 Feb 2004 02:30:24 GMT, "Bruce D. Meyer"
wrote:

I park in a parking garage at work, so my 2 meter anetnnae won't fit on
the
car (P.T. Cruiser) while in the garage. Removing it, just before
entering
the garage is not an option. Does anyone have a recomendation on an
alternate 2 meter antennae?

Bruce Meyer
www.kg4tac.net

That is very cool. I have been reading about DDRR since the original post.
I still need to look for Excalibur.
Bruce
"Jim" wrote in message
...
Had forgot about the DDRR -- After further checking , the geometry of it,
and the Excalibur, they are really the same antennas, just that the DDRR
is
formed into a circle, while the Excalibur is a straight line
The Excalibur looks like : __X__________________
/__X__________________
, with the middle open, 1/4 wavelength long

and as stated,

"X's" would be the feedpoint !
is a "slot" antenna . These are related to aircraft antennas, where , a
slot is cut into the frame, and then fed with R.F. You don't see it, as
it
is covered with fabric, plastic, or some other non-conductive media !
As a further aside, is used , in bombers, extensively, and have arrays of
these , stacked in phase!!
reason is if one, or 2 shot out, the antenna will still work, literally
until the plane is destroyed!
As info, Jim NN7K



"Phil" wrote in message
...
You might consider a DDRR antenna. See
http://www.antennex.com/preview/2mddrr.htm. They are available
commercially,
too.

Phil, KB2HQ

"Bob Miller" wrote in message
...
On Sun, 15 Feb 2004 02:30:24 GMT, "Bruce D. Meyer"
wrote:

I park in a parking garage at work, so my 2 meter anetnnae won't fit
on
the
car (P.T. Cruiser) while in the garage. Removing it, just before
entering
the garage is not an option. Does anyone have a recomendation on an
alternate 2 meter antennae?

Bruce Meyer
www.kg4tac.net