"ohm" wrote in message
news

Jeffrey D Angus;669752 Wrote:
ohm wrote:-
Hallo,

I came across this antenna and it made me interested to learn
more....I
figure its a folded diapole? is this correct and is it a radio
antenna
or a tv antenna?-

Kind of fuzzy picture but...

Looks like it's a opened up folded dipole. Commonly
refered to as a butterfly antenna. Two of them together
with one set turns 90 degrees is called a turnstile or
a clover leaf. Typically used as an FM transmitting
antenna.

Jeff

Thanks Jeff....
sorry about the fuzziness - its up quite high on an old building. I
was interested in it especially because of the bespoke iron brackets
that hold the iron tube that encases the wire. The tip seems to be
quite a small loop.....does the wire running through the pipe also
count toward the size of the antenna? And although it would typically
be a transmitting antenna could it be a receiving antenna or is it too
small a loop....or does the size matter!?


To me, it looks much more like a UHF communications (business band) antenna.
The loop is the active part of the antenna, and appears much too small for a
100 MHz antenna... closer to 450-470 MHz.