« Back to Category: Feedlines and Antenna Systems Random (Basic) Next in Category »
How do you calculate the length in metres (feet) of a quarter-wavelength antenna using frequencies below 30MHz?
Divide 71.5 (234) by the antenna's operating frequency in MHz
Approximate formula for quarter-wave length (L) in meters: L ≈ 75 / f(MHz). A more refined value considering end effect is closer to 71.5. For feet: L ≈ 234 / f(MHz).
Warning: Generated by AI