205 Subpart E—Frequencies

Federal Communications Commission § 87.173

Subpart E—Frequencies FAS—Aviation support FAT—Flight test § 87.169 Scope. FAW—Automatic weather observation GCO—Ground Communication Outlet This subpart contains class of station MA—Aircraft (Air carrier and Private) symbols and a frequency table which MA1—Air carrier aircraft only lists assignable frequencies. Fre- MA2—Private aircraft only quencies in the Aviation Services will MOU—Aeronautical utility mobile transmit communications for the safe, MRT—ELT test expeditious, and economic operation of RCO—Remote Communications Outlet RL—Radionavigation land (unspecified) aircraft and the protection of life and RLA—Marker beacon property in the air. Each class of land RLB—Radiobeacon station may communicate in accord- RLD—RADAR/TEST ance with the particular sections of RLG—Glide path this part which govern these classes. RLL—Localizer Land stations in the Aviation Services RLO—VHF omni-range in Alaska may transmit messages con- RLS—Surveillance radar cerning sickness, death, weather, ice RLT—Radionavigation land test RLW—Microwave landing system conditions or other matters relating to RNV—Radio Navigation Land/DME safety of life and property if there is no RPC—Ramp Control other established means of communica- TJ—Aircraft earth station in the Aero- tions between the points in question nautical Mobile-Satellite Service and no charge is made for the commu- UAT—Universal Access Transceiver nications service. [53 FR 28940, Aug. 1, 1988, as amended at 57 [69 FR 32882, June 14, 2004] FR 45750, Oct. 5, 1992; 64 FR 27475, May 20, 1999; 69 FR 32882, June 14, 2004; 71 FR 70676, § 87.171 Class of station symbols. Dec. 6, 2006; 76 FR 17351, Mar. 29, 2011] The two or three letter symbols for § 87.173 Frequencies. the classes of station in the aviation (a) The table in paragraph (b) of this services are: section lists assignable carrier fre- Symbol and class of station quencies or frequency bands. (1) The single letter symbol appear- AX—Aeronautical fixed ing in the ‘‘Subpart’’ column indicates AXO—Aeronautical operational fixed the subpart of this part which contains DGP—Differential GPS additional applicable regulations. FA—Aeronautical land (unspecified) (2) The two or three letter symbol ap- FAU—Aeronautical advisory (unicom) FAC—Airport control tower pearing in the ‘‘Class of Station’’ col- FAE—Aeronautical enroute umn indicates the class of station to FAM—Aeronautical multicom which the frequency is assignable. FAR—Aeronautical search and rescue (b) Frequency table:

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VerDate Mar<15>2010 17:40 Dec 15, 2011 Jkt 223206 PO 00000 Frm 00215 Fmt 8010 Sfmt 8010 Q:\47\47V5 ofr150 PsN: PC150 § 87.173 47 CFR Ch. I (10–1–11 Edition) flights. ... Search and rescue communications...... International HF...... International HF...... International HF...... International HF...... International HF; Flight Test...... International HF; Flight Test...... Domestic HF; International HF...... Domestic HF; International HF...... Lighter-than-air craft and aeronautical stations serving lighter-than-air craft...... Domestic HF...... Domestic HF...... Domestic HF...... Domestic HF...... Radiobeacons...... Radiobeacons...... Radiobeacons...... Air traffic control...... Air traffic control...... Flight Test...... Flight Test...... Flight Test...... Flight Test...... Domestic HF; (Alaska)...... Domestic HF...... Domestic HF...... Domestic HF...... Domestic HF...... Domestic HF; International HF...... Domestic HF...... Domestic HF...... Domestic HF...... Domestic HF...... LORAN ‘‘C’’...... International distress and calling...... Distress and safety with ships coast stations...... International direction-finding for use outside of United States...... Working frequency for aircraft on over-water flights...... International calling and distress frequency for ships aircraft on over-water ...... Alaska emergency...... Alaska station...... Gulf of Mexico...... Alaska...... Alaska...... Gulf of Mexico...... Alaska...... Alaska. Frequency or frequency band Subpart Class of station Remarks 90–110 kHz ...... 190–285 kHz Q ...... 200–285 kHz Q ...... RL ...... 325–405 kHz ...... O ...... RLB ...... 325–435 kHz ...... O ...... FAC ...... 410.0 kHz ...... Q ...... FAC ...... 457.0 kHz ...... F ...... RLB500.0 kHz ...... F ...... MA ...... F MA ...... 510–535 kHz ...... MA2182.0 kHz ...... Q ...... 2648.0 kHz F ...... RLB2850.0–3025.0 kHz ...... I ...... MA ...... 2851.0 kHz ...... I ...... AX ...... 2866.0 kHz ...... I, J ...... MA, FAE ...... 2875.0 kHz ...... I ...... MA, FAE, FAT ...... 2878.0 kHz ...... I ...... MA, FAE ...... 2911.0 kHz ...... I ...... MA, FAE ...... 2956.0 kHz ...... I ...... MA1, FAE ...... 3004.0 kHz ...... I ...... MA, FAE ...... 3019.0 kHz ...... I, J ...... MA, FAE ...... 3023.0 kHz ...... I ...... MA, FAE, FAT ...... 3281.0 kHz ...... F, M, O ...... MA1, FAE3400.0–3500.0 kHz ...... K ...... MA1, FAR, FAC ...... 3434.0 kHz ...... I ...... MA, FAS ...... 3443.0 kHz ...... I ...... MA, FAE ...... 3449.0 kHz ...... J ...... MA1, FAE ...... 3470.0 kHz ...... I ...... MA, FAT ...... 4125.0 kHz ...... I ...... MA, FAE ...... 4550.0 kHz ...... F ...... MA, FAE ...... 4645.0 kHz ...... I ...... MA ...... 4650.0–4700.0 kHz ...... I ...... AX ...... 4672.0 kHz ...... I ...... AX ...... 4947.5 kHz ...... I ...... MA, FAE ...... 5036.0 kHz ...... I ...... MA1, FAE ...... 5122.5 kHz ...... I ...... AX ...... 5167.5 kHz ...... I ...... AX ...... 5310.0 kHz ...... I ...... AX ...... 5450.0–5680.0 kHz ...... I ...... FA .....

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VerDate Mar<15>2010 17:40 Dec 15, 2011 Jkt 223206 PO 00000 Frm 00216 Fmt 8010 Sfmt 8010 Q:\47\47V5 ofr150 PsN: PC150 Federal Communications Commission § 87.173 traffic control operations. traffic control operations. traffic control operations. 25 kHz channel spacing Emergency and distress. 25 kHz channel spacing. ... Search and rescue communications. ... Air traffic control operations...... Differential GPS...... Air carrier and private aircraft enroute flight advisory service provided by FAA...... Air traffic control operations...... International HF...... International HF...... International HF...... International HF...... International HF...... ILS Localizer...... VHF omni-range...... International HF...... International HF...... International HF; Flight Test...... Operational fixed...... Operational fixed...... Domestic HF; international HF...... Domestic HF...... Domestic HF...... Flight Test...... Flight Test...... Flight Test...... Flight Test...... Flight Test...... Flight Test...... Flight Test...... Domestic HF...... Domestic HF...... Domestic HF...... Domestic HF; international HF...... Domestic HF...... Marker beacon...... Search and rescue communications...... Alaska...... Alaska. FAC, FAM. RCO, RPC. RCO, RPC ...... 5631.0 kHz ...... 5680.0 kHz I ...... 5887.5 kHz F, M, O ...... MA, FAE6525.0–6685.0 kHz ...... I ...... MA1, FAC, FAR ...... 6550.0 kHz ...... I ...... AX ...... 6580.0 kHz ...... J ...... MA, FAE ...... 6604.0 kHz ...... I ...... MA, FAT ...... 8015.0 kHz ...... I ...... MA, FAE ...... 8364.0 kHz ...... I ...... MA, FAE ...... 8815.0–8965.0 kHz ...... F ...... AX ...... 8822.0 kHz ...... I ...... MA ...... 8855.0 kHz ...... J ...... MA, FAE ...... 8876.0 kHz ...... I ...... MA, FAT ...... 10005.0–10100.0 kHz ...... I ...... MA, FAE ...... 10045.0 kHz ...... I ...... MA, FAE ...... 10066.0 kHz ...... J ...... MA, FAE ...... 11275.0–11400.0 kHz ...... I ...... MA, FAT ...... 11288.0 kHz ...... I ...... MA, FAE ...... 11306.0 kHz ...... J ...... MA, FAE ...... 11357.0 kHz ...... J ...... MA, FAT ...... 11363.0 kHz ...... I ...... MA, FAT ...... 13260.0–13360.0 kHz ...... I ...... MA, FAE ...... 13312.0 kHz ...... I ...... MA, FAE ...... 17900.0–17970.0 kHz ...... I, J ...... MA, FAE ...... 17964.0 kHz ...... I ...... MA, FAE, FAT ...... 21924.0–22000.0 kHz ...... J ...... MA, FAE ...... 21931.0 kHz ...... I ...... MA, FAT ...... 72.02–72.98 MHz ...... J ...... MA, FAE ...... 75.000 MHz ...... P ...... MA, FAT75.42–75.98 MHz ...... Q ...... FA, AXO ...... 108.000 MHz P ...... RLA108.000–117.950 MHz ...... Q ...... FA, AXO ...... 108.000–117.975 MHz Q ...... RLT ...... 108.050 MHz ...... Q ...... RLO ...... 108.100–111.950 MHz ...... Q ...... DGP ...... 108.100 MHz ...... Q ...... RLT ...... 108.150 MHz ...... Q ...... RLL ...... 118.000–121.400 MHz ...... Q ...... RLT ......

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VerDate Mar<15>2010 17:40 Dec 15, 2011 Jkt 223206 PO 00000 Frm 00217 Fmt 8010 Sfmt 8010 Q:\47\47V5 ofr150 PsN: PC150 § 87.173 47 CFR Ch. I (10–1–11 Edition) traffic control operations; 25 kHz spacing. 25 kHz channel spacing. 25 kHz channel spacing. Air traffic control operations; 25 kHz channel spacing. Air traffic control operations. Air traffic control operations...... Unicom at airports with no control tower; Aeronautical utility stations. ... Unicom at airports with no control tower; Aeronautical utility stations. ... Unicom at airports with no control tower; Aeronautical utility stations. ... Unicom at airports with control tower; Aeronautical utility stations. ... Unicom at airports with no control tower; Aeronautical utility stations. ... Unicom at airports with no control tower; Aeronautical utility stations. ... Unicom at airports with no control tower; Aeronautical utility stations. ... Unicom at airports with no control tower; Aeronautical utility stations...... Domestic VHF...... Domestic VHF...... Domestic VHF...... Itinerant...... Itinerant...... Itinerant...... Itinerant...... Private fixed wing aircraft air-to-air communications...... Helicopter air-to-air communications; Air traffic control operations. RPC. RPC. RPC RPC RPC Frequency or frequency band Subpart Class of station Remarks 122.125–122.675 MHz ...... 122.700 MHz F ...... 122.725 MHz G, L ...... MA2, FAC, MOU ...... 122.750 MHz ...... G, L ...... MA, FAU, MOU ...... Air 122.775 MHz ...... F ...... MA, FAU, MOU ...... 122.800 MHz ...... K ...... MA2 ...... 122.825 MHz G, L ...... MA, FAS ...... 122.850 MHz I ...... MA, FAU, MOU ...... 122.875 MHz ...... H, K ...... MA, FAE ...... 122.900 MHz ...... I ...... MA, FAM, FAS ...... 122.925 MHz F, H, L, M ...... MA, FAE122.950 MHz ...... H ...... MA, FAR, FAM, MOU ...... 122.975 MHz G, L ...... MA2, FAM. 123.000 MHz G, L ...... MA, FAU, MOU ...... 123.025 MHz ...... G, L ...... MA, FAU, MOU ...... 123.050 MHz ...... F ...... MA, FAU, MOU ...... 123.075 MHz ...... G, L ...... MA2 ...... 123.100 MHz G, L ...... MA, FAU, MOU ...... 123.125 MHz ...... M, O ...... MA, FAU, MOU ...... 123.150 MHz ...... J ...... MA, FAC, FAR ...... 123.175 MHz ...... J ...... MA, FAT ...... 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 J ...... MA, FAT ...... 123.325 MHz K ...... MA, FAT 123.350 MHz J ...... MA, FAS ...... 123.375 MHz J ...... MA, FAT ...... 123.400 MHz J ...... MA, FAT ...... 123.425 MHz J ...... MA, FAT ...... 123.450 MHz J ...... MA, FAT ...... 123.475 MHz ...... J ...... MA, FAT ...... 123.500 MHz J ...... MA, FAT ...... 123.525 MHz K ...... MA, FAT 123.550 MHz J ...... MA, FAS ...... 123.575 MHz J ...... MA, FAT ...... 123.6–128.8 MHz J ...... MA, FAT ...... O, S ...... MA, FAT 128.825–132.000 ...... MA, FAC, FAW, GCO, RCO, 132.025–135.975 MHz I ...... O, S MA, FAE ...... 136.000–136.400 MHz ......

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VerDate Mar<15>2010 17:40 Dec 15, 2011 Jkt 223206 PO 00000 Frm 00218 Fmt 8010 Sfmt 8010 Q:\47\47V5 ofr150 PsN: PC150 Federal Communications Commission § 87.173 in New Orleans Vessel traffic service area. under specific conditions. cept in Great Lakes and St. Lawrence Seaway Areas. tor transmitters. Air traffic control operations. Emergency and distress. .. Universal Access Transceivers. ... Electronic aids to air navigation. .... Domestic VHF...... Microwave landing systems...... Surveillance radars and transponders...... ILS glide path...... Airport surveillance and weather radar...... Land-based radar...... Aeronautical radionavigation...... Aeronautical telemetry and telecommand operations...... Aeronautical telemetry and telecommand operations...... Aeronautical telemetry and telecommand operations...... Differential GPS...... Aeronautical radionavigation...... Airborne radars and associated airborne beacons...... Airborne doppler radar...... International and Domestic VHF...... International and domestic VHF...... International and domestic VHF...... International and domestic VHF...... Aeronautical Mobile-Satellite (R)...... Radio altimeters...... Airborne radars and associated airborne beacons...... Airborne doppler radar...... For communications with ship stations under specific conditions...... For communications with ship stations under specific conditions; Not authorized ...... For communications with ship stations under specific conditions...... For communications with ship stations under specific conditions...... For communications with ship stations under specific conditions...... For communications with ship stations under specific conditions...... Distress, safety and calling frequency; For communications with ship stations ...... For communications with ship stations under specific conditions...... For communications with commercial fishing vessels under specific conditions ex- ...... Emergency and distress frequency for use of survival craft emergency loca- RPC FAC, FAM. UAT . Q ...... RLT 136.475 MHz ...... O, S ...... 136.500–136.875 MHz ...... MA, FAC, FAW, GCO, RCO, 136.900 MHz I ...... 136.925 MHz I ...... MA, FAE ...... 136.950 MHz ...... I ...... MA, FAE ...... 136.975 MHz ...... I ...... MA, FAE ...... 156.300 MHz ...... I ...... MA, FAE ...... 156.375 MHz ...... F ...... MA, FAE ...... F MA ...... 156.400 MHz ...... MA ...... 156.425 MHz F ...... 156.450 MHz F ...... MA ...... 156.625 MHz F ...... MA ...... 156.800 MHz F ...... MA ...... F MA ...... 156.900 MHz ...... MA ...... 157.425 MHz F ...... F MA ...... 243.000 MHz ...... MA ...... F ...... 328.600–335.400 MHz ...... MA ...... 334.550 MHz Q ...... 334.700 MHz Q ...... RLG ...... 406.0–406.1 MHz ...... Q ...... RLT ...... F, G, H, I, J, K, M, O RLT ...... 960–1215 MHz ...... MA, FAU, FAE, FAT, FAS, 978.000 MHz F, Q ...... F, L, Q MA, RL, RNV ...... MA, MOU, UAT ...... 979.000 MHz ...... 1030.000 MHz Q ...... 1104.000 MHz Q ...... RLT ...... 1300–1350 MHz Q ...... RLT ...... 1435–1525 MHz F, Q ...... RLT ...... 1559–1610 MHz F, J ...... MA, RLS ...... 1559–1626.5 MHz ...... Q ...... MA, FAT ...... 1646.5–1660.5 MHz F, Q ...... DGP ...... 2310–2320 MHz ...... F ...... MA, RL ...... 2345–2395 MHz J ...... TJ ...... 2700–2900 MHz ...... J ...... MA, FAT ...... 4200–4400 MHz ...... Q ...... MA, FAT ...... 5000–5250 MHz ...... F ...... RLS, RLD ...... 5031.000 MHz ...... Q ...... MA ...... 5350–5470 MHz Q ...... MA, RLW ...... 8750–8850 MHz ...... F ...... RLT ...... 9000–9200 MHz F ...... MA ...... 9300–9500

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VerDate Mar<15>2010 17:40 Dec 15, 2011 Jkt 223206 PO 00000 Frm 00219 Fmt 8010 Sfmt 8010 Q:\47\47V5 ofr150 PsN: PC150 § 87.173 47 CFR Ch. I (10–1–11 Edition) ..... Aeronautical radionavigation...... Aeronautical radionavigation. Frequency or frequency band Subpart Class of station Remarks 24750–25050 MHz ...... 32300–33400 MHz F, Q ...... F, Q MA, RL ...... MA, RL ......

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VerDate Mar<15>2010 17:40 Dec 15, 2011 Jkt 223206 PO 00000 Frm 00220 Fmt 8010 Sfmt 8010 Q:\47\47V5 ofr150 PsN: PC150 Federal Communications Commission § 87.187

[53 FR 28940, Aug. 1, 1988]

EDITORIAL NOTE: For FEDERAL REGISTER citations affecting § 87.183, see the List of CFR Sec- tions Affected, which appears in the Finding Aids section of the printed volume and on GPO Access.

Subpart F—Aircraft Stations § 87.187 Frequencies. (a) Frequencies used for air-ground § 87.185 Scope of service. Communications are listed in subpart (a) Aircraft stations must limit their E. Aircraft stations may use fre- communications to the necessities of quencies assigned to Government or safe, efficient, and economic operation non-Government aeronautical stations of aircraft and the protection of life or radionavigation land stations if the and property in the air, except as oth- communications are within the aero- erwise specifically provided in this nautical or radionavigation land sta- part. Contact with an aeronautical tion scope of service. land station must only be attempted (b) 410 kHz is the international direc- when the aircraft is within the serivce tion-finding frequency for use outside area of the land station. however, air- the continental United States. (c) 457 kHz is an authorized working craft stations may transmit advisory frequency for flights over the high information on air traffic control, seas. unicom or aeronautical multicom fre- (d) 500 kHz an international calling quencies for the benefit and use of and distress frequency for aircraft on other stations monitoring these fre- flights over the high seas. Except for quencies in accordance with FAA rec- distress, urgency or safety messages an ommended traffic advisory practices. aircraft station must not transmit on (b) Aircraft public correspondence 500 kHz during the silence periods for service must be made available to all three minutes twice each hour begin- persons without discrimination and on ning at x h. 15 and x h.45 Coordinated reasonable demand, and must commu- Universal Time (u.t.c.). nicate without discrimination with any (e) The frequency 2182 khz is an inter- public coast station or mobile-satellite national distress and calling frequency earth station authorized to provide air- for use by ship, aircraft and survival craft public correspondence service. craft stations. Aircraft stations must (c) Aircraft public correspondence use J3E emission when operating on service on maritime mobile frequencies 2182 kHz and communicating with do- may only be carried by aircraft sta- mestic public and private coast stations licensed to use maritime mobile tions. The emission H3E may be used frequencies and must follow the rules when communicating with foreign for public correspondence in part 80. coast and ship stations. (d) Aircraft public correspondence (f) The frequencies 3023 kHz, 5680 kHz, service on Aeronautical Mobile-Sat- 122.900 MHz and 123.100 MHz are author- ellite (R) Service frequencies may only ized for use by aircraft engaged in be carried on aircraft earth stations li- seach and rescue activities in accord- censed to use Aeronautical Mobile-Sat- ance with subpart M. These frequencies ellite (R) frequencies and are subject to may be used for air-air and air-ground the rules for public correspondence in communications. this part. Aircraft public correspond- (g) The frequency 4125 kHz may be ence service on Maritime Mobile-Sat- used for distress and safety commu- ellite Service frequencies may only be nications between aircraft and ship and coast maritime mobile stations. carried by aircraft earth stations li- (h) The frequency 8364.0 kHz is au- censed to use Maritime Mobile-Sat- thorized for use of survival craft for ellite frequencies and are subject to search and rescue communications the rules for public correspondence in with stations in the maritime mobile part 80. service. [53 FR 28940, Aug. 1, 1988, as amended at 57 (i) The frequencies in the band FR 45750, Oct. 5, 1992] 121.975–122.675 MHz are authorized for

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