Antenna Tuning Guide

Frequency (MHz) 1/2 Wave Dipole Length (m) SWR Range
1.8 MHz 27.5 m 1.1 - 1.5
3.5 MHz 20.5 m 1.1 - 1.3
7 MHz 10.1 m 1.1 - 1.3
10 MHz 14.5 m 1.1 - 1.5
14 MHz 10.7 m 1.1 - 1.5
18 MHz 8.3 m 1.1 - 1.5
21 MHz 7.1 m 1.1 - 1.5
24 MHz 6.1 m 1.1 - 1.5
28 MHz 5.1 m 1.1 - 1.5
50 MHz 3.0 m 1.1 - 1.5
144 MHz 1.5 m 1.1 - 1.5
430 MHz 0.7 m 1.1 - 1.5
1.2 GHz 0.25 m 1.1 - 1.5