The Timewave ANC-4 uses a reference (noise) antenna to receive the noise signal. This can be a short wire antenna (supplied) or a telescopic whip (supplied). Then you plug your main antenna into the SO-239 jack labeled MAIN ANTENNA. Then you will need a short PL-259 to PL259 jumper to connect from the RADIO output jack to the Antenna Input jack of your communications receiver.
The ANC-4 requires 12 VDC 300 ma. A power plug is supplied (5mm OD, 2.1mm ID, center positive).