The RU-1:1 is a 1:1 Unun intended to help remove unwanted RF from the coax cable shield. Frequency Coverage: 1.8 to 30 MHz

The RU-1:1 is a 1:1 Unun intended to help remove unwanted RF from the coax cable shield. It is normally used as a common-mode RF choke for short coax cable runs or non-resonant antennas. The RU-1:1 features SO-239 sockets for both input and output.