A Guide to Circualar Waveguide


Amateur Band EIA Type Designation ID in Inches ID in cm Lower useful Freq. in GHz Upper useful Freq. in GHz
902 MHz
WC 992
9.915
25.184
0.800
1.100
1296 MHz
WC 724
7.235
18.377
1.100
1.510
1296 MHz
WC 618
6.181
15.700
1.290
1.760
2304 MHz
WC 451
4.511
11.458
1.760
2.420
2304
WC 385
3.853
9.7870
2.070
2.830
3456
WC 281
2.182
7.1420
2.830
3.880
5760
WC 175
1.750
4.4450
4.540
6.230
5760
WC 150
1.500
3.8100
5.300
7.270
10 GHz
WC 94
0.938
2.3830
8.490
11.600
10GHZ
WC 80
0.797
2.0240
9.970
13.700
24 GHz
WC 44
0.438
1.1130
18.200
24.900
24 GHz
WC 38
0.375
0.9530
21.200
29.100
24 GWHz
WC 33
0.238
0.8330
24.300
33.200
48 GHz
WC 22
0.219
0.5560
36.400
49.800
48 GHz
WC 19
0.188
0.4780
42.400
58.100
48 GHz
WC 17
0.172
0.4370
46.300
63.500

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Data by Ron Neyens, NCIH (From proceedings of the Central States VHF Society Conference '91)

--page by; James H. Wolfe --
--Updated 10-31-2000 --