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Exactly.....my thoughts are if the impedance (my terms were wrong)match from the radio feedline to the antenna is @ 50 ohms all of the signal is radiated as a signal..10 watts to the antenna and 10 watts radiated out....use of any matching device is going to let less signal radiate....heat the coil? ....thus lower efficiency?

The closer the match the better.....50 ohms matched antennas should, i think first hear better as all the signal is presented to the radio and transmit all of the wattage or a higher percentage with a direct match or very close to direct match.

Any form of match...be it a gamma, hairpin, coils etc. are a point of loss. these matching devices are just a point where we match one impedance to another of different value. As a 50 ohm feed to a 100 ohm antenna?

To produce antenna gain, from the lower angle of radiation a 5/8 wave vertical produces we have a mismatch at the feed point? Thus the need for the match at its base. My question is if the match is off we could see no gain from the 5/8 antenna vs a 1/4 wave? I produced a 1.75 swr on 27.500 with radiator matched at the mid portion of the 10 meter band! By using the coil match it was useable but would be very poor as an antenna system.