The RU-4:1 Unun was designed to allow easy interface of vertical and end fed antennas to the LDG line of Automatic Antenna Tuners. 

The 200 watt Unun also operates “stand alone”, thus does not require an LDG Tuner for resonant verticals. 

It may also be used with many of your antenna projects where a 4:1 Unun is needed.

• Configuration: 4:1 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)