Amateur bands

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Amateur radio frequency allocation is done by national telecommunication authorities. Globally, the International Telecommunication Union (ITU) oversees how much radio spectrum is set aside for amateur radio transmissions. Individual amateur stations are free to use any frequency within authorized frequency ranges; authorized bands may vary by the class of the station license.

Canadian Amateur Radio Frequency Allocations

A complete list of amateur radio frequency allocations can be found on the government of Canada website. These allocations are set by the Engineering, Planning and Standards Branch of Innovation, Science and Economic Development Canada (ISED). Band uses in this table are assigned in order of priority, and many bands include footnotes which must be observed.

International Amateur Frequency Allocations

The below table is for quick reference of amateur band allocations across the three ITU regions, for amateur use. Specific exceptions, priorities and regional rules must be additionally researched. The table is only for quick reference.

International amateur radio frequency allocations
Range Band ITU Region 1 ITU Region 2 ITU Region 3
LF 2200 m 135.7 kHz – 137.8 kHz
MF 630 m 472 kHz – 479 kHz
160 m 1.810 MHz – 1.850 MHz 1.800 MHz – 2.000 MHz
HF 80 / 75 m 3.500 MHz – 3.800 MHz 3.500 MHz – 4.000 MHz 3.500 MHz – 3.900 MHz
60 m 5.3515 MHz – 5.3665 MHz
40 m 7.000 MHz – 7.200 MHz 7.000 MHz – 7.300 MHz 7.000 MHz – 7.200 MHz
30 m[w] 10.100 MHz – 10.150 MHz
20 m 14.000 MHz – 14.350 MHz
17 m[w] 18.068 MHz – 18.168 MHz
15 m 21.000 MHz – 21.450 MHz
12 m[w] 24.890 MHz – 24.990 MHz
10 m 28.000 MHz – 29.700 MHz
VHF 6 m 50.000 MHz – 52.000 MHz[x] 50.000 MHz – 54.000 MHz
4 m[x] 70.000 MHz – 70.500 MHz n/a
2 m 144.000 MHz – 146.000 MHz 144.000 MHz – 148.000 MHz
1.25 m n/a 220.000 MHz – 225.000 MHz n/a
UHF 70 cm 430.000 MHz – 440.000 MHz 430.000 MHz – 440.000 MHz
(420.000 MHz – 450.000 MHz)[y]
33 cm n/a 902.000 MHz – 928.000 MHz n/a
23 cm 1.240 GHz – 1.300 GHz
13 cm 2.300 GHz – 2.450 GHz
SHF 9 cm 3.400 GHz – 3.475 GHz[y] 3.300 GHz – 3.500 GHz
5 cm 5.650 GHz – 5.850 GHz 5.650 GHz – 5.925 GHz 5.650 GHz – 5.850 GHz
3 cm 10.000 GHz – 10.500 GHz
1.2 cm 24.000 GHz – 24.250 GHz
EHF 6 mm 47.000 GHz – 47.200 GHz
4 mm[y] 75.500 GHz[x] – 81.500 GHz 76.000 GHz – 81.500 GHz
2.5 mm 122.250 GHz – 123.000 GHz
2 mm 134.000 GHz – 141.000 GHz
1 mm 241.000 GHz – 250.000 GHz
THF Sub-mm Some administrations have authorized spectrum for amateur use in this region;
others have declined to regulate frequencies above 300 GHz, leaving them available by default.

[w] HF allocation created at the 1979 World Administrative Radio Conference. These are commonly called the "WARC bands".
[x] This is not mentioned in the ITU's Table of Frequency Allocations, but individual administrations may make allocations under ITU Radio Regulations. See the appropriate Wiki page for further information.
[y] This includes a currently active footnote allocation mentioned in the ITU's Table of Frequency Allocations. These allocations may only apply to a group of countries.


International Amateur Satellite Frequency Allocations

International amateur satellite frequency allocations
Range Band Letter1 Allocation3 Preferred sub-bands2 User status3 Notes3
HF 40 m 7.000 MHz - 7.100 MHz Primary
20 m 14.000 MHz - 14.250 MHz Primary
17 m 18.068 MHz - 18.168 MHz Primary Entire amateur radio band
15 m H 21.000 MHz - 21.450 MHz Primary Entire amateur radio band
12 m 24.890 MHz - 25.990 MHz Primary Entire amateur radio band
10 m A 28.000 MHz - 29.700 MHz 29.300 MHz - 29.510 MHz Primary Entire amateur radio band
VHF 2 m V 144.000 MHz - 146.000 MHz 145.800 MHz - 146.000 MHz Primary
UHF 70 cm U 435.000 MHz - 438.000 MHz NIB3
23 cm L 1.260 GHz - 1.270 GHz NIB3 Only uplinks allowed
13 cm S 2.400 GHz - 2.450 GHz 2.400 GHz - 2.403 GHz NIB3
SHF 9 cm S2 3.400 GHz - 3.410 GHz NIB3 Not available in ITU region 1.
5 cm C 5.650 GHz - 5.670 GHz NIB3 Only uplinks allowed
5.830 GHz - 5.850 GHz Secondary Only downlinks allowed
3 cm X 10.450 GHz - 10.500 GHz Secondary
1.2 cm K 24.000 GHz - 24.050 GHz Primary
EHF4 6 mm R 47.000 GHz - 47.200 GHz Primary Entire amateur radio band
4 mm 76.000 GHz - 77.500 GHz Secondary
77.500 GHz - 78.000 GHz Primary
78.000 GHz - 81.000 GHz Secondary
2 mm 134.000 GHz - 136.000 GHz Primary Entire amateur radio band
136.000 GHz - 141.000 GHz Secondary
1 mm 241.000 GHz - 248.000 GHz Secondary Entire amateur radio band
248.000 GHz - 250.000 GHz Primary

1 AMSAT band letters. Not all bands have been assigned a letter by AMSAT.
2 For some allocations, satellite operations are predominantly concentrated in a sub-band of the allocation.
3 Footnote allocation. Use is only allowed on a non-interference basis to other users, as per ITU footnote 5.282.
4 No amateur satellite operations have yet occurred at EHF; however, AMSAT's P3E is planned to have an R band down-link.