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.

Configuration: 1:1 Unun
Frequency Coverage: 1.8 to 30 MHz.
Power Range: to 200 watts PEP
Easy to weatherproof
Enclosure size: 5 x 2.5 x 1.25 (measured in inches)
Weight: 6 oz (with enclosure)