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Home VSWR Conversion Chart
VSWR
Return Loss dB
Transmission Loss dB
Reflected Power %
1.00
0.000
0.0
1.01
46.1
0.000
0.0
1.02
40.1
0.000
0.0
1.03
36.6
0.001
0.0
1.04
34.2
0.003
0.0
1.05
32.3
0.003
0.1
1.06
30.7
0.004
0.1
1.07
29.4
0.005
0.1
1.08
28.3
0.006
0.1
1.09
27.3
0.008
0.2
1.10
26.4
0.010
0.2
1.11
25.7
0.012
0.3
1.12
24.9
0.014
0.3
1.13
24.3
0.016
0.4
1.14
23.7
0.019
0.4
1.15
23.1
0.021
0.5
1.16
22.6
0.024
0.5
1.17
22.1
0.027
0.6
1.18
21.7
0.030
0.7
1.19
21.2
0.033
0.8
1.20
20.8
0.036
0.8
1.21
20.4
0.039
0.9
1.22
20.4
0.043
1.0
1.23
19.7
0.046
1.1
1.24
19.4
0.050
1.1
1.25
19.1
0.054
1.2
1.26
18.8
0.058
1.3
1.27
18.5
0.062
1.4
1.28
18.2
0.066
1.5
1.29
17.9
0.070
1.6
1.30
17.7
0.075
1.7
1.32
17.2
0.083
1.9
1.34
16.8
0.093
2.1
1.36
16.3
0.102
2.3
1.38
15.9
0.112
2.5
1.40
15.6
0.122
2.8
1.42
15.2
0.133
3.0
1.44
14.9
0.144
3.3
1.46
14.6
0.155
3.5
1.48
14.3
0.166
3.7
1.50
14.0
0.177
4.0
1.52
13.7
0.189
4.3
1.54
13.4
0.201
4.5
1.56
13.2
0.213
4.8
1.58
13.0
0.225
5.1
1.60
12.7
0.238
5.3
1.62
12.5
0.250
5.6
1.66
12.1
0.276
6.2
1.68
11.9
0.289
6.4
1.70
11.7
0.302
6.7
1.72
11.5
0.315
7.0
1.74
11.4
0.329
7.3
1.76
11.2
0.342
7.6
1.78
11.0
0.356
7.9
1.80
10.9
0.370
8.2
1.82
10.7
0.384
8.5
1.84
10.6
0.398
8.7
1.86
10.4
0.412
9.0
1.88
10.3
0.426
9.3
1.90
10.2
0.440
9.6
1.92
10.0
0.454
9.9
1.94
9.9
0.468
10.2
1.96
9.8
0.483
10.5
1.98
9.7
0.497
10.8
2.00
9.5
0.512
11.1
2.50
7.4
0.881
18.4
3.0
6.0
1.249
25.0
4.0
4.4
1.938
36.0
5.0
3.5
2.553
44.4
10
1.7
4.810
66.9
20
0.9
7.413
81.9
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