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If a tunable transmitter is available, determine at what frequency the best VSWR is
obtained. If this occurs at a frequency below the required frequency the dipole is
too long, if it occurs on a frequency higher than the required frequency then the
dipole is too short. Drop the dipole and adjust both ends by an equal amount and
repeat the above sequence until an optimum VSWR is obtained. If a tunable
transmitter is not available use a method of trial and error shortening or lengthening
the dipole ends, a little at a time, until optimum VSWR is obtained. Remember to
always adjust each end by the same amount as the other every time.
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