Install the cable harness (MFJ-1765) in between the two
antennas. Connect one of the coax cables with PL-259 to one
antenna and the other cable to the other antenna.
Connect your antenna feedline to the SO-239 on the cable harness
bracket.
Tuning Instruction
The 5/8 wave Super-gain antenna is pre-tuned at the factory for
minimum SWR at mid-band to operate on 144-148 MHz and also on
50-54 MHz. However, if further fine tuning is needed, the
elements maybe screwed in or out to obtain minimum SWR for the
desire operation frequency.