What Happened When I Added a Counterpoise to My HT

Any comments for Brian? Interesting thought.

KC4LMD

The problem of an electrically short antenna is familiar to anyone operating in medium-wave bands. One solution is the counterpoise ground system, which is a series of radial wires that act as a low-resistance ground connection.

Broadcast Engineers use counterpoise systems to improve AM radio station coverage. Coastal Maritime Stations with limited space use them in conjunction with capacitance hats as a tuning method. HF Backpackers even tie a long radial to their whip antenna to improve their own signal as they hike.

When I read an article about applying the concept to handhelds, I was intrigued.

The antenna on a typical handheld is a vertical monopole with the radio chassis serving as a ground plane. This configuration is terribly inefficient because the antenna is a fraction of a wavelength it should be. Your radio may be rated for 5 watts, but you’d be lucky to have a third of…

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