Homemade antenna coupler for balanced antenna.
Typical frequency range 1.8 to 30 MHz – continuos power >1kW
L-Network matching High Z – Input 50Ω coaxial – Output feederline (fed antenna)
– roller variable inductor 0-35uH (german)
– vacuum variable capacitor 10-1200 pF, 4kV (russia)
– Kellerman balun (5mm teflon coaxial cable)
swiss amateur radio station
