HF Vertical Antenna RF Choke Calculator
Welcome to the Vertical Antenna RF Choke / Earth Termination Choke Calculator. This tool is designed to help you create an effective choke for placement between your antenna's radials and any ground post or earth stake. The primary purpose of the choke is to prevent RF current from leaking to the ground. While a direct current (DC) ground connection allows static and similar currents to flow to the ground, the choke effectively blocks these paths at the design frequency, ensuring optimal antenna performance.
The thickness of the enamel-coated copper wire used for winding the choke. Affects inductance and size.
The minimum impedance value that the choke must exhibit to be considered effective at a given frequency.
Enter the cost of the selected ferrite core. Air Core has a cost of €0.
The diameter of the coil former around which the choke is wound.
Enter the cost of the wire in € per meter.
Results
Target Inductance: µH
Total Wire Length (with tails): mm
