Tools
Antenna calculators & tools.
Calculator
Log Periodic Feed Line Calculator
Work out the feed line impedance and element spacing for a log periodic antenna, for round or square tube. Enter the tube size and centre sp...
Calculator
HF Vertical RF Choke Calculator
Design the RF choke and earth-termination choke for an HF vertical antenna. Sweeps choke impedance across the band, plots the response, and...
Calculator
Dipole Length Calculator
Calculate the overall and per-leg lengths of a half-wave dipole from your operating frequency, for a traditional flat-top or an inverted V,...