LDG Baluns and Ununs
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LDG RU-1:1 Unun
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. |
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LDG RU-4:1 Unun
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. |
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LDG RU-9:1 Unun
The RU-9:1 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. |
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LDG RBA-1:1 Balun
The RBA-1:1 Balun Current Balun was designed to allow easy interface of ladder line antennas and long wires to the LDG line of Automatic Antenna Tuners. The Balun operates “stand alone”, thus does not require an LDG Tuner. It may be used with any of your long, random, or ladder line antenna projects.
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LDG RBA-4:1 Balun
The RBA-4:1 Voltage Balun was designed to allow easy interface of ladder line antennas and long wires to the LDG line of Automatic Antenna Tuners. The Balun operates “stand alone”, thus does not require an LDG Tuner. It may be used with any of your long, random, or ladder line antenna projects.
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Balun & Unun Specifications:
• 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"
• Weight: 6 oz (with enclosure)
 LDG Unun Manual (pdf)
LDG Balun Manual (pdf)
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