End-fed Half-wave Antenna
PAR Electronics
http://parelectronics.com

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.

The UV resistant ABS plastic housing encloses an efficient matching network allowing the antenna to be fed with common 50 ohm coaxial cable.  All hardware is stainless and the SO-239 connector is silver/teflon.

The radiator material is a tough polyethylene jacketed, highly flexible #14 copper wire (41 strands of #30 gauge).  One end comes with a #10 solder lug making attachment to the matchbox simple and allowing the radiator portion to be replaced if ever necessary.

They are ideal for portable work.  The all black construction makes them difficult to see.

 

EF-20 Manual (pdf)