MFJ-700A4, RFI SUPPRESSION CHOKES, 1/4~ X 4 Transceiver It rejects out-of-band signals and

It rejects out-of-band signals and images

insert an auto-incrementing serial number

or reverse connect them to match 35-Ohm verticals and yagis

  CAUTION:  Once its on

whistles and buzzing sounds are on the shortwave bands

MFJ-700A4, RFI SUPPRESSION CHOKES, 1/4~ X 4 Transceiver It rejects out-of-band signals andThese RFI snap on Chokes are selected for RFI suppression. Install on DC power line to keep ignition noise from your mobile rig and amplifier. Remove RF on cables and wires to your radio station. Isolate RFI on feedline from your station. Two piece design, snap and lock securely around your cable. Install end to end along rigid cable or loop multiple turns with smaller soft cable. Typical Cable Use RG58 59 6U 8X.