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Both work great for vertical or horizontal polarization
Installation is simple
or reverse connect them to match 35-Ohm verticals and yagis
uses 9V battery and built into a rugged aluminum cabinet
It rejects out-of-band signals and images
MFJ-700A4, RFI SUPPRESSION CHOKES, 1/4~ X 4 Transceiver Both work great for verticalThese 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.
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