10
The following chart shows various calculations depending on the desired center frequency. The
frequencies shown here are various CW, DX, and SSB frequencies used in the American Radio
Relay League Band Plan:
Band
(Meters)
Typical Center
Frequency
(MHz)
Distance between antennas
(
1/4-wavelength
)
at the Center Frequency
Meters
Feet
160
1.830
41.0
134.4
1.845
41.0
133.3
1.950
38.5
126.2
80/75
3.550
21.1
69.3
3.560
21.1
69.1
3.575
21.0
68.8
3.650
21.0
67.4
3.710
20.2
66.3
3.795
20.0
64.8
3.985
19.0
61.7
40
7.030
11.1
34.9
7.040
11.0
34.9
7.110
11.0
34.6
7.150
10.4
34.4
7.225
10.3
34.0
Table 2 -
TFS4
Four Square Vertical Antenna Spacing
