Thursday 21 January 2021

Wavelengths

Wavelengths

VHF Low
Civil Airband
Marine Band
VHF Mid
VHF High
UHF 1
UHF 2
PMR 446
UK General

VHF Low:

Frequency (MHz):Wavelength (m):Half (m):Quarter (m):
684.4122.2061.103
694.3482.1741.087
704.2862.1431.071
714.2252.1131.056
724.1672.0831.042
734.1102.0551.027
744.0542.0271.014
754.0002.0001.000
763.9471.9740.987
773.8961.9480.974
783.8461.9230.962
793.7971.8990.949
803.7501.8750.938
813.7041.8520.926
823.6591.8290.915
833.6141.8070.904
843.5711.7860.893
853.5291.7650.882
863.4881.7440.872
873.4481.7240.862
883.4091.7050.852

Civil Airband:

Frequency (MHz):Wavelength (m):Half (m):Quarter (m):
1082.7781.3890.694
1092.7521.3760.688
1102.7271.3640.682
1112.7031.3510.676
1122.6791.3390.670
1132.6551.3270.664
1142.6321.3160.658
1152.6091.3040.652
1162.5861.2930.647
1172.5641.2820.641
1182.5421.2710.636
1192.5211.2610.630
1202.5001.2500.625
1212.4791.2400.620
1222.4591.2300.615
1232.4391.2200.610
1242.4191.2100.605
1252.4001.2000.600
1262.3811.1900.595
1272.3621.1810.591
1282.3441.1720.586
1292.3261.1630.581
1302.3081.1540.577
1312.2901.1450.573
1322.2731.1360.568
1332.2561.1280.564
1342.2391.1190.560
1352.2221.1110.556
1362.2061.1030.551
1372.1901.0950.547

Marine Band:

Frequency (MHz):Wavelength (m):Half (m):Quarter (m):
1561.9230.9620.481
1571.9110.9550.478
1581.8990.9490.475
1591.8870.9430.472
1601.8750.9380.469
1611.8630.9320.466
1621.8520.9260.463
1631.8400.9200.460

VHF Mid:

Frequency (MHz):Wavelength (m):Half (m):Quarter (m):
1392.1581.0790.540
1402.1431.0710.536
1412.1281.0640.532
1422.1131.0560.528
1432.0981.0490.524
1442.0831.0420.521
1452.0691.0340.517
1462.0551.0270.514
1472.0411.0200.510
1482.0271.0140.507
1492.0131.0070.503
1502.0001.0000.500
1511.9870.9930.497
1521.9740.9870.493
1531.9610.9800.490
1541.9480.9740.487
1551.9350.9680.484
1561.9230.9620.481
1571.9110.9550.478
1581.8990.9490.475
1591.8870.9430.472
1601.8750.9380.469
1611.8630.9320.466
1621.8520.9260.463
1631.8400.9200.460
1641.8290.9150.457

VHF High:

Frequency (MHz):Wavelength (m):Half (m):Quarter (m):
1651.8180.9090.455
1661.8070.9040.452
1671.7960.8980.449
1681.7860.8930.446
1691.7750.8880.444
1701.7650.8820.441
1711.7540.8770.439
1721.7440.8720.436
1731.7340.8670.434
1741.7240.8620.431

UHF 1:

Frequency (MHz):Wavelength (m):Half (m):Quarter (m):
4250.7060.3530.176
4260.7040.3520.176
4270.7030.3510.176
4280.7010.3500.175
4290.6990.3500.175
4300.6980.3490.174
4310.6960.3480.174
4320.6940.3470.174
4330.6930.3460.173
4340.6910.3460.173
4350.6900.3450.172
4360.6880.3440.172
4370.6860.3430.172
4380.6850.3420.171
4390.6830.3420.171
4400.6820.3410.170
4410.6800.3400.170
4420.6790.3390.170
4430.6770.3390.169
4440.6760.3380.169
4450.6740.3370.169
4460.6730.3360.168
4470.6710.3360.168
4480.6700.3350.167
4490.6680.3340.167
4500.6670.3330.167

UHF 2:

Frequency (MHz):Wavelength (m):Half (m):Quarter (m):
4530.6620.3310.166
4540.6610.3300.165
4550.6590.3300.165
4560.6580.3290.164
4570.6560.3280.164
4580.6550.3280.164
4590.6540.3270.163
4600.6520.3260.163
4610.6510.3250.163
4620.6490.3250.162
4630.6480.3240.162

PMR 446:

Frequency (MHz):Wavelength (m):Half (m):Quarter (m):
446.006250.6730.3360.168
446.018750.6730.3360.168
446.031250.6730.3360.168
446.043750.6730.3360.168
446.056250.6730.3360.168
446.068750.6730.3360.168
446.081250.6730.3360.168
446.093750.6730.3360.168

UK General:

Frequency (MHz):Wavelength (m):Half (m):Quarter (m):
77.6875 3.8621.9310.965
86.3375 3.4751.7370.869
86.3500 3.4741.7370.869
86.3625 3.4741.7370.868
86.3750 3.4731.7370.868
164.05001.8290.9140.457
164.06251.8290.9140.457
169.08751.7740.8870.444
169.01251.7750.8880.444
169.06251.7740.8870.444
169.31251.7720.8860.443
173.05001.7340.8670.433
173.06251.7330.8670.433
173.08751.7330.8670.433
449.31250.6680.3340.167
449.40000.6680.3340.167
449.47500.6670.3340.167
461.28750.6500.3250.163
461.37500.6500.3250.163
461.45000.6500.3250.163
462.10000.6490.3250.162

Note that the quarter wave antenna is normally the closest impedance match (about 50 ohm) to the input of your scanner.

No comments:

Post a Comment

Wavelengths

Wavelengths VHF Low Civil Airband Marine Band VHF Mid VHF High UHF 1 UHF 2 PMR 446 UK General VHF Low: ...