On Tuesday 10 March 2009 23:07:37 skipp025 wrote:
I'm looking for an Untenna (or two)
Anyone got what I think is called an Untenna they'd like
to sell, trade, swap or otherwise part with? Actually
doesn't matter what band... I'm interested in measuring
the radiation angle and related performance. I might not
have the name/brand exactly right...
It's an open round (fairly large tube diameter) coil with
one or two taps. The low band version fits under a radome
about the size of a small cake pan and I've not seen a vhf
or uhf version up close yet.
I'd also be interested in your opinions if you own or have
used one. If you've got one you'd part with, please drop me
a note.
thanks in advance for your replies.
skipp
Thats the direct driven ring radiator, right? I remember when
they came out in the 70's or 80's for 2M use. They wern't very
good as I remember them, about on par with a 1/4 wave antenna.
They did look neat though, and sparked questions from people
who saw them.
Look at http://www.orionmicro.com/ant/ddrr/ddrr1.htm for more
information.
--STeve Andre'
wb8wsf en82
