What Are the Properties of 43' Vertical Monopoles Used as Multiband Radiators?
Amateur Radio Asked on September 27, 2021
43′ vertical monopoles sometimes are used with an auto-tuner at their input as radiators in the ham bands from 40m through 10m, but are any performance compromises required to do that?
One Answer
While using a 43' vertical monopole as a Z-matched radiator on the upper ham bands through 10 meters can make the transmitter happy, it has considerably less gain/usefulness on 10 meters than a typical Ground Plane antenna installation does for the greatest range, single-hop DX contacts from the important elevation sector below about 25 degrees (see following graphic):
Answered by Richard Fry on September 27, 2021
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