MFJ-913 4:1 300W Current Balun

MFJ 4:1 current baluns are designed to replace the center insulator of a dipole antenna. They are made up of two large low-permeability ferrite cores. The MFJ-913 is rated at 300 watts. Their SO-239 coax connectors have Teflon™ internal insulation for maximum insulation and extended life of the product. Unlike some other baluns, the MFJ-913 makes direct electrical connections to the antenna with #14 stranded copper
wire and is enclosed in Schedule-40 PVC for maximum strength and support of a dipole antenna.

A current balun can reduce or eliminate stray RF often found on coax. This stray RF can cause burns and other problems with electronic equipment while reducing antenna radiation. Installation of an MFJ-913 current balun can increase the efficiency of any amateur station.

MFJ-913 Features:

• The MFJ-913 is a 300 Watt true current baluns/antenna center insulators that transforms 200 ohms to 50 ohms.
• Transmission Line Transformer construction using 100 ohm characteristic impedance transmission line gives flat 160-10 Meter response.
• Large low permeability ferrite cores easily handle full power.
• SO-239, stainless steel hardware with direct 14 gauge stranded copper wire connection to antenna.
• Heavy duty weather housing.
• Measures 4¼ x 2 inch diameter.