I use a Par End-Fedz antenna at my QTH, in particular, the EF-20. Par Electronics calls these antennas ‘dipoles’. They are nothing of the sort. Just because an antenna is a half-wavelength long, does not make it a dipole. Here’s what they say-
“The Par End-Fedz are a full length half wave dipoles, but with an important difference. The coax connector is at one end of the dipole, where it is most needed. These antennas can be mounted horizontally, vertically or as a sloper. No ground plane or counterpoise is needed. Portable operation could not be easier. Simply hang the far end from a tree limb — the coax is at the bottom. Hang it up in a hotel window or string it up in the attic. End insulators are supplied making suspension easy”
Once you get over this blattant misrepresentation, and getting down to using one, you’ll find that they work quite well. I have worked a lot of DX with mine, and mine is just tossed in a tree. It tunes up without a tuner on 20m and just works. Construction is good and the wire slips through tress like a breeze.
So what is the End-Fedz really? I’d hazard a guess that its a Zepp of some fashion. Buy one and try it for yourself!
Many of my QSO’s on my YouTube channel are with this antenna: http://www.youtube.com/user/ve3cnu