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1:1 Current Balun

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Antenna Supplies 
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The MFJ-918 is a 1:1 Current Balun designed to replace the center insulator of a dipole antenna. It is made up of 50 ferrite core beads placed onto a 13-inch piece of RG-303 Coax. Operates 1.8 to 30 MHz.

The coax and SO-239 connectors have Teflon® for maximum insulation and extended life of the product. The MFJ 1:1 Current Balun is enclosed in schedule 40 PVC pipe for maximum strength and protection. Unlike other baluns, the MFJ-918 makes a direct electrical connection to the antenna with #14 copper wire.

The MFJ Current Balun will reduce or eliminate stray RF often found on coax. This stray RF can cause burns and other problems with electronic equipment in ham-shacks and vehicles. Stray RF also results in a loss of radiated power from the antenna, which will lead to a great reduction in signal strength.

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