Ham Radio Calculators

Dipole Cut/Add Calculator

This one is courtesy of Callum M0MCX. He did the original Excel spreadsheet version. I've converted it for the web. You can view his YouTube channel here

  Frequency Wave Length (M) 1/4 Wave (M) Length (cm)
Current Resonant Freq
Required Resonant Freq
* This calculator allows for a velocity factor of PVC coated wire (93%)