2.5-millimeter band
References
"FCC Online Table of Frequency Allocations" (PDF). 47 C.F.R.

2.5-millimeter band

Section Title: References
Table Section Text: "FCC Online Table of Frequency Allocations" (PDF). 47 C.F.R.

v t e 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 m2	10.100 MHz – 10.150 MHz

20 m	14.000 MHz – 14.350 MHz

17 m2	18.068 MHz – 18.168 MHz

15 m	21.000 MHz – 21.450 MHz

12 m2	24.890 MHz – 24.990 MHz

10 m	28.000 MHz – 29.700 MHz

VHF	6 m	50.000 MHz – 52.000 MHz1	50.000 MHz – 54.000 MHz

4 m1	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 – 440.000 MHz (420.000 – 450.000 MHz)3

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 GHz3	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 mm3	75.500 GHz1 – 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.

1 This is not mentioned in the ITU's Table of Frequency Allocations, but individual administrations may make allocations under Article 4.4 of the ITU Radio Regulations.

See also: Radio spectrum · Electromagnetic spectrum

Sentence(s)

The amateur radio 2.5-millimeter band is between 122.250 GHz and 123.000 GHz.

final_sentence: The amateur radio 2.5-millimeter band is between 122.250 GHz and 123.000 GHz.