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.
1:1 Balun (The Choke)
The most common balun. It does not change the impedance; it simply ensures that the RF current on the two sides of a balanced antenna is equal and prevents "common mode" current from flowing back down the outside of your coax.
- Best for: Centre-fed Dipoles, Inverted-Vs, and Yagi antennas that naturally have an impedance near 50 Ohm.
- Function: Prevents the coax shield from becoming part of the antenna, which reduces RFI (interference) in your shack.
Key Features/Specifications:
- Weight: 6 oz (with enclosure)
- Configuration: 1:1 Current Balun
- Frequency Coverage: 1.8 to 30 MHz
- Power Range: Maximum 200 watts PEP (SSB), 40 Watts Data Modes
- Easy to weatherproof
- Enclosure size: 5 x 2.5 x 1.25 (measured in inches)