This end-fed antenna is convenient, small and easy to set up for portable use. Great for your FT-817D, KX2, KX3, and other QRP radios. It will handle 100w+ PEP, so it's also perfect with typical transceivers for emergency use, Field Day, or in locations with antenna restrictions.
The matching unit contains a trifilar wound, 9:1 UNUN (unbalanced to unbalanced) matching transformer that matches the high input impedance of an end fed antenna into the range where most antenna tuners can produce good performance. Antenna portion is made from 30' of premium DXE 14 awg stranded copper wire. Antenna and counterpoise connections are stainless steel.
An antenna tuner is needed–built-in radio autotuners and external tuners will work.
The end fed antenna functions well in several configurations including horizontal, sloper, and vertical configurations. Hang the insulator end from a tree limb or pole and attach the coax to the SO-239 connector. No counterpoise wire or ground is required, but it is suggested for best performance. Run at least 16ft of coax to antenna.
Covers 40-6m, including WARC bands. Lower bands can be added by extending wire length (a list of suggested lengths are included with the instructions.) It also makes a great shortwave antenna as well. Antenna is ready to use out of the box.
For extended or permanent outdoor use, additional weatherproofing suggested.