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 to long, if
it occurs on a frequency higher than the required frequency then the dipole is to 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.
Several single frequency wire dipoles positioned between
two towers.
BARRETT 950 HF TRANSCEIVER
PAGE 105