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
