[amsat-bb] Re: Commercial Mode L Antenna sources

[Alan P. Biddle]

Ron,

I have an M2 23CM35EZ which works very well with AO-51.  Overkill on AO-51,
and probably marginal for P3, though they are easy to stack for gain.
http://www.m2inc.com/products/uhf/23cm/23cm35ez.html

If you want to go with a commercial helix, Directive Systems makes the
DSH23-12.  A friend bought one, and in fact got them to make one with a few
more turns in it.  It worked well, and is certainly designed to withstand
the elements.   http://www.directivesystems.com/new.htm 

Alan
WA4SCA