What is the performance difference between helical and quarter-wave handset antennas?

There is hardly any difference if hand held, but there could be up to 2dB if the equipment is fixed. Typically, for a given frequency and power input, 1/4 wave antennas perform with 1.5 to 2.0 dB gain over helical antennas when used on a large groundplane. When the equipment is held in the hand, any performance difference between 1/4 waves and helicals is less noticeable.

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