80M EH Antenna by WB5CXC

EH Antenna

“This is a picture of my EH ‘STAR’ antenna for 80 meters. It has two cylinders made from aluminum flashing 30 1/2” long, wrapped around 2” (2.375”) PVC pipe. Below the cylinders are two coils for matching and developing the EH field. There is a phasing coil between the cylinder. This antenna is described in the Demonstration #5 from Ted Hart.

Building the antenna is very easy and inexpensive. It has outperformed my other antennas (dipole made from two mobile whip antennas up 20 feet and a vertical w/o radials). The first test was when I checked into the weekly ARES Net (Statewide ARES Ne for South Texas), usually have to check in from an alternate net control due to a weak signal. The first night net control heard me the first time without any repeats. I next checked into the Southwest Traffic Net with the net control in Hot Springs Arkansas without any trouble. For a limited space antenna it appears to be doing a good job.

Using the instructions in the Demonstration documents, tune the antenna. After the antenna is tuned, the source coil should be wound on the pipe and tuned per instructions

Download Demonstration #4

Download Demonstration #5

More link http://www.wb5cxc.com/80m_eh.html

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