47 CFR 87.173 - Frequencies.

Regulations last checked for updates: Nov 25, 2024

Title 47 - Telecommunication last revised: Nov 20, 2024

View all text of Subpart E [§ 87.169 - § 87.173]

§ 87.173 - Frequencies.

(a) The table in paragraph (b) of this section lists assignable carrier frequencies or frequency bands.

(1) The single letter symbol appearing in the “Subpart” column indicates the subpart of this part which contains additional applicable regulations.

(2) The two or three letter symbol appearing in the “Class of Station” column indicates the class of station to which the frequency is assignable.

(b) Frequency table:

Frequency or frequency band	Subpart	Class of station	Remarks
90-110 kHz	Q	RL	LORAN “C”.
190-285 kHz	Q	RLB	Radiobeacons.
200-285 kHz	O	FAC	Air traffic control.
325-405 kHz	O	FAC	Air traffic control.
325-435 kHz	Q	RLB	Radiobeacons.
410.0 kHz	F	MA	International direction-finding for use outside of United States.
457.0 kHz	F	MA	Working frequency for aircraft on over-water flights.
500.0 kHz	F	MA	International calling and distress frequency for ships and aircraft on over-water flights.
510-535 kHz	Q	RLB	Radiobeacons.
2182.0 kHz	F	MA	International distress and calling.
2648.0 kHz	I	AX	Alaska station.
2850.0-3025.0 kHz	I	MA, FAE	International HF.
2851.0 kHz	I, J	MA, FAE, FAT	International HF; Flight Test.
2866.0 kHz	I	MA, FAE	Domestic HF; (Alaska).
2875.0 kHz	I	MA, FAE	Domestic HF.
2878.0 kHz	I	MA1, FAE	Domestic HF; International HF.
2911.0 kHz	I	MA, FAE	Domestic HF.
2956.0 kHz	I	MA, FAE	Domestic HF.
3004.0 kHz	I, J	MA, FAE, FAT	International HF; Flight Test.
3019.0 kHz	I	MA1, FAE	Domestic HF; International HF.
3023.0 kHz	F, M, O	MA1, FAR, FAC	Search and rescue communications.
3281.0 kHz	K	MA, FAS	Lighter-than-air craft and aeronautical stations serving lighter-than-air craft.
3400.0-3500.0 kHz	I	MA, FAE	International HF.
3434.0 kHz	I	MA1, FAE	Domestic HF.
3443.0 kHz	J	MA, FAT	Flight Test.
3449.0 kHz	I	MA, FAE	Domestic HF.
3470.0 kHz	I	MA, FAE	Domestic HF; International HF.
4125.0 kHz	F	MA	Distress and safety with ships and coast stations.
4550.0 kHz	I	AX	Gulf of Mexico.
4645.0 kHz	I	AX	Alaska.
4650.0-4700.0 kHz	I	MA, FAE	International HF.
4672.0 kHz	I	MA1, FAE	Domestic HF.
4947.5 kHz	I	AX	Alaska.
5036.0 kHz	I	AX	Gulf of Mexico.
5122.5 kHz	I	AX	Alaska.
5167.5 kHz	I	FA	Alaska emergency.
5310.0 kHz	I	AX	Alaska.
5450.0-5680.0 kHz	I	MA, FAE	International HF.
5451.0 kHz	J	MA, FAT	Flight Test.
5463.0 kHz	I	MA1, FAE	Domestic HF.
5469.0 kHz	J	MA, FAT	Flight Test.
5472.0 kHz	I	MA, FAE	Domestic HF.
5484.0 kHz	I	MA, FAE	Domestic HF.
5490.0 kHz	I	MA, FAE	Domestic HF.
5496.0 kHz	I	MA, FAE	Domestic HF.
5508.0 kHz	I	MA1, FAE	Domestic HF.
5571.0 kHz	J	MA, FAT	Flight Test.
5631.0 kHz	I	MA, FAE	Domestic HF.
5680.0 kHz	F, M, O	MA1, FAC, FAR	Search and rescue communications.
5887.5 kHz	I	AX	Alaska.
6525.0-6685.0 kHz	I	MA, FAE	International HF.
6550.0 kHz	J	MA, FAT	Flight Test.
6580.0 kHz	I	MA, FAE	Domestic HF.
6604.0 kHz	I	MA, FAE	Domestic HF.
8015.0 kHz	I	AX	Alaska.
8364.0 kHz	F	MA	Search and rescue communications.
8815.0-8965.0 kHz	I	MA, FAE	International HF.
8822.0 kHz	J	MA, FAT	Flight Test.
8855.0 kHz	I	MA, FAE	Domestic HF; international HF.
8876.0 kHz	I	MA, FAE	Domestic HF.
10005.0-10100.0 kHz	I	MA, FAE	International HF.
10045.0 kHz	J	MA, FAT	Flight Test.
10066.0 kHz	I	MA, FAE	Domestic HF; international HF.
11275.0-11400.0 kHz	I	MA, FAE	International HF.
11288.0 kHz	J	MA, FAT	Flight Test.
11306.0 kHz	J	MA, FAT	Flight Test.
11357.0 kHz	I	MA, FAE	Domestic HF.
11363.0 kHz	I	MA, FAE	Domestic HF.
13260.0-13360.0 kHz	I	MA, FAE	International HF.
13312.0 kHz	I, J	MA, FAE, FAT	International HF; Flight Test.
17900.0-17970.0 kHz	I	MA, FAE	International HF.
17964.0 kHz	J	MA, FAT	Flight Test.
21924.0-22000.0 kHz	I	MA, FAE	International HF.
21931.0 kHz	J	MA, FAT	Flight Test.
72.02-72.98 MHz	P	FA, AXO	Operational fixed.
75.000 MHz	Q	RLA	Marker beacon.
75.42-75.98 MHz	P	FA, AXO	Operational fixed.
108.000 MHz	Q	RLT
108.000-117.950 MHz	Q	RLO	VHF omni-range.
108.000-117.975 MHz	Q	DGP	Differential GPS.
108.050 MHz	Q	RLT
108.100-111.950 MHz	Q	RLL	ILS Localizer.
108.100 MHz	Q	RLT
108.150 MHz	Q	RLT
118.000-121.400 MHz	O, S	MA, FAC, FAW, GCO RCO, RPC	25 kHz channel spacing
121.500 MHz	G, H, I, J, K, M, O	MA, FAU, FAE, FAT, FAS, FAC, FAM	Emergency and distress.
121.600-121.925 MHz	O, L, Q	MA, FAC, MOU, RLT, GCO, RCO, RPC	25 kHz channel spacing.
121.950 MHz	K	FAS
121.975 MHz	F, S	MA2, FAW, FAC, MOU	Air traffic control operations.
122.000 MHz	F	MA, FAC, MOU	Air carrier and private aircraft enroute flight advisory service provided by FAA.
122.025 MHz	F, S	MA2, FAW, FAC, MOU	Air traffic control operations.
122.050 MHz	F	MA, FAC, MOU	Air traffic control operations.
122.075 MHz	F, S	MA2, FAW, FAC, MOU	Air traffic control operations.
122.100 MHz	F, O	MA, FAC, MOU	Air traffic control operations.
122.125-122.675 MHz	F	MA2, FAC, MOU	Air traffic control operations; 25 kHz spacing.
122.700 MHz	G, L, Q	MA, FAU, MOU, AVW	Unicom at airports with no control tower; Aeronautical utility stations.
122.725 MHz	G, L, Q	MA, FAU, MOU, AVW	Unicom at airports with no control tower; Aeronautical utility stations.
122.750 MHz	F, Q	MA2, AVW	Private fixed wing aircraft air-to-air communications.
122.775 MHz	K	MA, FAS
122.800 MHz	G, L, Q	MA, FAU, MOU, AVW	Unicom at airports with no control tower; Aeronautical utility stations.
122.825 MHz	I	MA, FAE	Domestic VHF.
122.850 MHz	H, K, Q	MA, FAM, FAS, AVW.
122.875 MHz	I	MA, FAE	Domestic VHF.
122.900 MHz	F, H, L, M, Q	MA, FAR, FAM, MOU, AVW
122.925 MHz	H	MA2, FAM
122.950 MHz	G, L, Q	MA, FAU, MOU, AVW	Unicom at airports with control tower; Aeronautical utility stations.
122.975 MHz	G, L, Q	MA, FAU, MOU, AVW	Unicom at airports with no control tower; Aeronautical utility stations.
123.000 MHz	G, L, Q	MA, FAU, MOU, AVW	Unicom at airports with no control tower; Aeronautical utility stations.
123.025 MHz	F, Q	MA2, AVW	Helicopter air-to-air communications; Air traffic control operations.
123.050 MHz	G, L, Q	MA, FAU, MOU, AVW	Unicom at airports with no control tower; Aeronautical utility stations.
123.075 MHz	G, L, Q	MA, FAU, MOU, AVW	Unicom at airports with no control tower; Aeronautical utility stations.
123.100 MHz	M, O	MA, FAC, FAR
123.125 MHz	J	MA, FAT	Itinerant.
123.150 MHz	J	MA, FAT	Itinerant.
123.175 MHz	J	MA, FAT	Itinerant.
123.200 MHz	J	MA, FAT
123.225 MHz	J	MA, FAT
123.250 MHz	J	MA, FAT
123.275 MHz	J	MA, FAT
123.300 MHz	K, Q	MA, FAS, AVW.
123.325 MHz	J	MA, FAT
123.350 MHz	J	MA, FAT
123.375 MHz	J	MA, FAT
123.400 MHz	J	MA, FAT	Itinerant.
123.425 MHz	J	MA, FAT
123.450 MHz	J	MA, FAT
123.475 MHz	J	MA, FAT
123.500 MHz	K, Q	MA, FAS, AVW.
123.525 MHz	J	MA, FAT
123.550 MHz	J	MA, FAT
123.575 MHz	J	MA, FAT
123.6-128.8 MHz	O, S	MA, FAC, FAW, GCO, RCO, RPC	25 kHz channel spacing.
128.825-132.000 MHz	I	MA, FAE	Domestic VHF.
131.450 MHz	I	DLT.
131.550 MHz	I	DLT.
131.725 MHz	I	DLT.
131.825 MHz	I	DLT.
132.025-135.975 MHz	O, S	MA, FAC, FAW, GCO RCO RPC	25 kHz channel spacing.
136.000-136.400 MHz	O, S	MA, FAC, FAW, GCO, RCO, RPC	Air traffic control operations; 25 kHz channel spacing.
136.425 MHz	O, S	MA, FAC, FAW, GCO, RCO, RPC	Air traffic control operations.
136.450 MHz	O, S	MA, FAC, FAW, GCO, RCO, RPC	Air traffic control operations.
136.475 MHz	O, S	MA, FAC, FAW, GCO, RCO, RPC	Air traffic control operations.
136.500-136.875 MHz	I	MA, FAE	Domestic VHF; 25 kHz channel spacing.
136.850 MHz	I	DLT.
136.900 MHz	I	MA, FAE, DLT	International and Domestic VHF.
136.925 MHz	I	MA, FAE, DLT	International and Domestic VHF.
136.950 MHz	I	MA, FAE, DLT	International and Domestic VHF.
136.975 MHz	I	MA, FAE, DLT	International and Domestic VHF.
156.300 MHz	F	MA	For communications with ship stations under specific conditions.
156.375 MHz	F	MA	For communications with ship stations under specific conditions; Not authorized in New Orleans Vessel traffic service area.
156.400 MHz	F	MA	For communications with ship stations under specific conditions.
156.425 MHz	F	MA	For communications with ship stations under specific conditions.
156.450 MHz	F	MA	For communications with ship stations under specific conditions.
156.625 MHz	F	MA	For communications with ship stations under specific conditions.
156.800 MHz	F	MA	Distress, safety and calling frequency; For communications with ship stations under specific conditions.
156.900 MHz	F	MA	For communications with ship stations under specific conditions.
157.425 MHz	F	MA	For communications with commercial fishing vessels under specific conditions except in Great Lakes and St. Lawrence Seaway Areas.
243.000 MHz	F	MA	Emergency and distress frequency for use of survival craft and emergency locator transmitters.
328.600-335.400 MHz	Q	RLG	ILS glide path.
334.550 MHz	Q	RLT
334.700 MHz	Q	RLT
406.0-406.1 MHz	F, G, H, I, J, K, M, O	MA, FAU, FAE, FAT, FAS, FAC, FAM	Emergency and distress.
960-1215 MHz	F, Q	MA, RL, RNV	Electronic aids to air navigation.
978.000 MHz	F, L, Q	MA, MOU, UAT	Universal Access Transceivers.
	UAT
	Q	RLT
979.000 MHz	Q	RLT
1030.000 MHz	Q	RLT.
1090.000 MHz	L	MOU, RLT	Vehicle Squitter.
1104.000 MHz	Q	RLT
1300-1350 MHz	F, Q	MA, RLS	Surveillance radars and transponders.
1435-1525 MHz	F, J	MA, FAT	Aeronautical telemetry and telecommand operations.
1559-1610 MHz	Q	DGP	Differential GPS.
1559-1626.5 MHz	F, Q	MA, RL	Aeronautical radionavigation.
1646.5-1660.5 MHz	F	TJ	Aeronautical Mobile-Satellite (R).
2345-2395 MHz	J	MA, FAT	Aeronautical telemetry and telecommand operations.
2700-2900 MHz	Q	RLS, RLD	Airport surveillance and weather radar.
4200-4400 MHz	F	MA	Radio altimeters.
5030-5150 MHz	Q	MA, RLW	Microwave landing systems.
5031.000 MHz	Q	RLT
5091-5150 MHz	J	MA, FAT	Aeronautical telemetry.
5350-5470 MHz	F	MA	Airborne radars and associated airborne beacons.
8750-8850 MHz	F	MA	Airborne doppler radar.
9000-9200 MHz	Q	RLS, RLD	Land-based radar.
9300-9500 MHz	F, Q	MA	Airborne radars and associated airborne beacons.
13250-13400 MHz	F	MA	Airborne doppler radar.
15400-15700 MHz	Q	RL	Aeronautical radionavigation.
24450-24650 MHz	F, Q	MA, RL	Aeronautical radionavigation.
32300-33400 MHz	F, Q	MA, RL	Aeronautical radionavigation.

[53 FR 28940, Aug. 1, 1988] Editorial Note:For Federal Register citations affecting § 87.183, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

authority: 47 U.S.C. 154,303,unless

source: 53 FR 28940, Aug. 1, 1988, unless otherwise noted.

cite as: 47 CFR 87.173