Anyone know anything about a Sinclair folded dipole.
It looks like 2 vertically polarized folded dipoles stacked.

What is the feed Z, radiation pattern, gain etc.
A very weird antenna.

"bbnn" wrote in message ...
Anyone know anything about a Sinclair folded dipole.
It looks like 2 vertically polarized folded dipoles stacked.

What is the feed Z, radiation pattern, gain etc.
A very weird antenna.

There are various models of those in my dealer book. The "Z" isn't listed,
I've never heard of them being connected any other way than 50 ohms. Someone
can correct me if I'm wrong - as I'll too learn something. As to radiation
pattern, if they're stacked, it is one value, offset - another. As to "how
much gain", depends on the model and again, if stacked or offset.
If you had a model number, I could be a bit more specific. The gains of
those I handle are anywhere from 2 dB and up.

cl

On Sat, 02 Apr 2005 09:04:44 -0800, bbnn wrote:

Anyone know anything about a Sinclair folded dipole.
It looks like 2 vertically polarized folded dipoles stacked.

What is the feed Z, radiation pattern, gain etc.
A very weird antenna.

Do you have a reference or URL?

--
73 for now
Buck
N4PGW

Buck, try this : http://www.sinctech.com/catalog/group.aspx?id=2
should be somewhat similar to the db-222 (DB Products), thoif memory
serves they 1 wavelength from the mounting support pipe.
Jim NN7K

Buck wrote:
On Sat, 02 Apr 2005 09:04:44 -0800, bbnn wrote:


Anyone know anything about a Sinclair folded dipole.
It looks like 2 vertically polarized folded dipoles stacked.

What is the feed Z, radiation pattern, gain etc.
A very weird antenna.


Do you have a reference or URL?