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== Common VHF Frequencies ==
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Aircraft use [https://en.wikipedia.org/wiki/Airband Airband] as their primary means of voice communication. In North America, the spectrum from 118.000 to 136.975 MHz is used with 25 kHz spacing and [[Modulation_Methods#Amplitude_Modulation|AM]]. As of 2010 aeronautical enroute and flight test stations may use 8.33 kHz spaced channels in the 121.4-123.6, 128.825-132.0 and 136.5-136.875 MHz ranges.
−
 
 
−
In the US the civil aircraft communications band (118-137 MHz) generally uses 25 kHz spaced channels.
 
−
 
 
−
As of 2010 aeronautical enroute and flight test stations may use 8.33 kHz spaced channels in the 121.4-123.6, 128.825-132.0 and 136.5-136.875 MHz ranges.
 
  
 +
==VHF Allocation - 118-137 MHz==
 +
{| class="wikitable sortable"
 +
|-
 +
! Lower Frequency !! Upper Frequency !! Allocation
 +
|-
 +
| 118.000 || 121.400 || ATC
 +
|-
 +
| 121.425 || 121.450 || Gov AWOS/ASOS
 +
|-
 +
| 121.475 || || Band Protection for 121.500
 +
|-
 +
| 121.500 || || Emergency Frequency (Guard)
 +
|-
 +
| 121.525 || || Band Protection for 121.500
 +
|-
 +
| 121.550 || 121.575 || Gov AWOS/ASOS
 +
|-
 +
| 121.600 || 121.925 || ATC (Old Ground Control Frequency Band)
 +
|-
 +
| 121.775 || || SAR ELT Location Training
 +
|-
 +
| 121.950 || || Aviation Support
 +
|-
 +
| 121.975 || || FSS Private Aircraft Advisory
 +
|-
 +
| 122.000 || 122.050 || EFAS (Callsign "Flightwatch" terminated 10/1/2015 and merged with FSS)
 +
|-
 +
| 122.075 || 122.675 || FSS Private Aircraft Advisory
 +
|-
 +
| 122.700 || 122.725 || UNICOM - Uncontrolled Airports
 +
|-
 +
| 122.750 || || Fixed Wing Aircraft - Air to Air
 +
|-
 +
| 122.775 || || Aviation Support
 +
|-
 +
| 122.800 || || UNICOM - Uncontrolled Airports
 +
|-
 +
| 122.825 || || Domestic VHF
 +
|-
 +
| 122.850 || || MULTICOM
 +
|-
 +
| 122.875 || || UNICOM - Domestic VHF
 +
|-
 +
| 122.900 || || MULTICOM - SAR Training
 +
|-
 +
| 122.925 || || MULTICOM - Special Use/ National Response Management
 +
|-
 +
| 122.950 || || UNICOM - Full Time ATCT, FSS
 +
|-
 +
| 122.975 || 123.000 || UNICOM - Uncontrolled Airports
 +
|-
 +
| 123.025 || || Helicopter Air-to-Air
 +
|-
 +
| 123.025 || 123.075 || UNICOM - Uncontrolled Airports
 +
|-
 +
| 123.100 || || SAR; Temp. ATCTs and Fly-ins with SAR Coordination
 +
|-
 +
| 123.125 || 123.275 || Flight Test
 +
|-
 +
| 123.300 || || Aviation Support
 +
|-
 +
| 123.325 || 123.475 || Flight Test (123.450 Used for Air-to-Air Communications Over Remote and Oceanic Areas Out of Range of VHF Ground Stations)
 +
|-
 +
| 123.500 || || Aviation Support
 +
|-
 +
| 123.525 || 123.575 || Flight Test
 +
|-
 +
| 123.600 || 123.650 || ATC (Formerly Air Carrier Advisory. FSS Uses Phased Out)
 +
|-
 +
| 123.675 || 126.175 || ATC
 +
|-
 +
| 126.200 || || Military Common (Advisory)
 +
|-
 +
| 126.225 || 128.800 || ATC
 +
|-
 +
| 128.825 || 132.000 || Operational Control. Coordinated by ARINC (See [[#Airline Operations|Airline Operations]] Below)
 +
|-
 +
| 132.025 || 134.075 || ATC
 +
|-
 +
| 134.100 || || Military Common (Advisory)
 +
|-
 +
| 134.125 || 135.825 || ATC
 +
|-
 +
| 135.850 || || FAA Flight Inspection
 +
|-
 +
| 135.875 || 135.925 || ATC
 +
|-
 +
| 135.950 || || FAA Flight Inspection
 +
|-
 +
| 135.975 || 136.400 || ATC
 +
|-
 +
| 136.425 || 136.475 || Old FIS. (Now Unallocated)
 +
|-
 +
| 136.500 || 136.875 || Domestic VHF
 +
|-
 +
| 136.900 || 136.975 || International and Domestic VHF
 +
|}
 +
[https://www.faa.gov/documentLibrary/media/Order/6050_32B_WITH_CHG_1_AND_2_INCORPORATED.pdf FAA Order 6050.32B Change 1 Appendix 2 Figure 1.]
 +
<br>
  
 +
== Common Civilian Frequencies ==
 
<freqsubcat>64549</freqsubcat>
 
<freqsubcat>64549</freqsubcat>
  
−
From Appendix 2 of FAA Spectrum Management Regulations and Procedures Manual and 87.173 Aeronautical Frequency Table (See references below)
+
== Common Military Frequencies ==
−
118.000 - 121.400  Air Traffic Control
 
−
121.425 - 121.450  Govt AWOS/ASOS
 
−
121.475 - 121.525  Band Protection for 121.5
 
−
121.550 - 121.575  Govt AWOS/ASOS
 
−
121.600 - 121.925  Air Traffic Control (Old gnd ctrl freq band)
 
−
121.775            SAR ELT Location training
 
−
121.975            FSS Private Aircraft Advisory
 
−
122.000 - 122.050  En Route Flight Advisory Service (EFAS)
 
−
122.075 - 122.675  FSS Private Aircraft Advisory
 
−
122.700 - 122.725  Unicom - Uncontrolled Airports
 
−
122.800            Unicom - Uncontrolled Airports
 
−
122.825            Domestic VHF
 
−
122.875            Unicom, Domestic VHF
 
−
122.950            Unicom - Airports with full time ATCT or FSS
 
−
122.975 - 123.000  Unicom - Uncontrolled Airports
 
−
123.050 - 123.075  Unicom - Uncontrolled Airports
 
−
123.125 - 123.175  Flight Test itinerant
 
−
123.200 - 123.275  Flight Test
 
−
123.325 - 123.375  Flight Test
 
−
123.425 - 123.475  Flight Test
 
−
123.525 - 123.575  Flight Test
 
−
123.600 - 126.800  Air Traffic Control
 
−
128.825 - 132.000  Operational Control
 
−
132.025 - 136.475  Air Traffic Control
 
−
136.500 - 136.875  Domestic VHF
 
−
136.900 - 136.975  International and Domestic VHF
 
−
<br>
 
−
 
 
−
== Common UHF Frequencies ==
 
 
In recent years many PMSV stations have moved off of the four older nationwide common frequencies.
 
In recent years many PMSV stations have moved off of the four older nationwide common frequencies.
−
  243.0 Aircraft Emergency and Distress (UHF Guard)
+
  243.0000 Aircraft Emergency and Distress (Military Guard)
−
  257.8 Air Traffic Control (Military Common)
+
  257.8000 Air Traffic Control (Military Common)
−
  282.8 Search and Rescue
+
  282.8000 Search and Rescue
−
  255.4 FAA Flight Service Stations
+
  255.4000 FAA Flight Service Stations
−
  296.7 FAA Flight Service Stations
+
  296.7000 FAA Flight Service Stations
−
  239.8 PMSV (Pilot to Metro Service - weather advisory)
+
  239.8000 PMSV (Pilot to Metro Service - weather advisory)
−
  342.5 PMSV
+
  342.5000 PMSV
−
  344.6 PMSV
+
  344.6000 PMSV
−
  375.2 PMSV
+
  375.2000 PMSV
−
  303.0 Air-to-air "Winchester"
+
  303.0000 Air-to-air "Winchester"
−
  311.0 USAF ACC Command Posts Pimary
+
  311.0000 USAF ACC Command Posts Pimary
−
  321.0 USAF ACC Command Posts Secondary
+
  321.0000 USAF ACC Command Posts Secondary
−
  381.3 USAF ACC Command Posts
+
  381.3000 USAF ACC Command Posts
−
  319.4 USAF AMC Command Posts   
+
  319.4000 USAF AMC Command Posts   
−
  349.4 USAF AMC Command Posts
+
  349.4000 USAF AMC Command Posts
−
  252.1 USAF Reserve Command Posts
+
  252.1000 USAF Reserve Command Posts
−
  351.2 USAF Reserve Command Posts
+
  351.2000 USAF Reserve Command Posts
−
  364.2 USAF NORAD AICC Primary
+
  364.2000 USAF NORAD AICC Primary
−
  380.0 FAA Flight Inspection/ SMO Ground Personnel
+
  380.0000 FAA Flight Inspection/ SMO Ground Personnel
−
  380.1 FAA Flight Inspection/ SMO Ground Personnel
+
  380.1000 FAA Flight Inspection/ SMO Ground Personnel
 
<br>
 
<br>
  
 
== ARINC En Route Service ==
 
== ARINC En Route Service ==
−
The ARINC En Route Service is available to aircraft above 20,000 feet and on the ground at select airports. Base is "San Francisco Radio" except on Gulf Net, Maritime Net and Mex Net which are "New York Radio."
+
ARINC operates a wide area radio network, primarily to enable airline customers to create voice patches. It is available above 20,000 feet and on the ground at select airports. Use examples include pilot to dispatch, maintenance control, or medical advisors. This is usually used to supplement ACARS or in lieu of ACARS if it is inoperative on an aircraft. This way airline dispatchers can maintain operational control of their aircraft in flight. Delta Air Lines maintains a similar but separate network called "Atlanta Radio".
−
* [http://www.rockwellcollins.com/Services_and_Support/Information_Management/ARINC_Aviation/globalink-air-ground/Jeppesen_charts.aspx ARINC HF/VHF Coverage Maps]
+
 
−
* [http://www.rockwellcollins.com/Services_and_Support/Information_Management/ARINC_Aviation/globalink-air-ground/air-ground_domestic_voice_service.aspx ARINC Air/Ground Domestic Voice Service]
+
In the contiguous US, the base station callsign is "San Francisco Radio" except on Gulf Net, Maritime Net and Mex Net which are "New York Radio."
 +
* [https://radio.arinc.net/ ARINC Voice Service] (this page has current HF/VHF coverage maps)
 
* [[ARINC Frequencies in the NE US]]
 
* [[ARINC Frequencies in the NE US]]
  
 
VHF en route frequencies changed effective 04 Apr 2012:
 
VHF en route frequencies changed effective 04 Apr 2012:
−
  128.900 Southwest USA
+
  128.9000 Southwest USA
−
  129.400 Northeast USA / Canada West Coast and Anchorage
+
  129.4000 Northeast USA / Great Lakes Area / Canada West Coast and Anchorage
−
  129.450 East Central USA
+
  129.4500 East Central USA
−
  131.800 Northwest USA
+
  131.8000 Northwest USA
−
  129.900 Maritime Net (Northeast Coast USA)
+
  129.9000 Maritime Net (Northeast Coast USA)
−
  130.700 Mexico / Carribean
+
  130.7000 Mexico / Caribbean
−
  131.175 Southeast USA
+
  131.1750 Southeast USA
−
  130.400 West Central USA
+
  130.4000 West Central USA
−
  131.950 Pacific Net (West Coast USA and Hawaii)
+
  131.9500 Pacific Net (West Coast USA and Hawaii)
 
<br>
 
<br>
  
Line 87: Line 155:
  
 
== Balloon Operations ==
 
== Balloon Operations ==
−
  123.3 Common air-to-ground (pilot-to-chase crew), shared with glider ops.
+
  123.3000 Common air-to-ground (pilot-to-chase crew), shared with glider ops.
−
  123.5 Common air-to-ground (pilot-to-chase crew), shared with glider ops.
+
  123.5000 Common air-to-ground (pilot-to-chase crew), shared with glider ops.
−
  122.75 Common air-to-air
+
  122.7500 Common air-to-air
−
  122.0 AFSS Weather requests
+
  122.0000 AFSS Weather requests
  
 
<br>
 
<br>
  
−
== [[Blimps]] ==
+
==Airline Operations==
−
== [[Heavy Lift Helicopters]] ==
+
The frequencies between 128.825-132.000 and 136.500-136.975 MHz are managed and coordinated by Aviation Spectrum Resources, Inc (ASRI). ASRI was spun off from Aeronautical Radio, INC (ARINC) in 2010. ARINC is now owned by Collins Aerospace and ASRI is owned by a consortium of U.S. airlines. Operations such as pilot to FBO, pilot to airline ground operation station, pilot to dispatch via a radio network such as San Francisco Radio, and deice trucks are found almost exclusively between 128.825-132.000. Coordinating and FCC licensing is handled by ASRI. The licensee in FCC licenses is almost always ASRI, thus obfuscating the license's user. <sup>[https://www.asri.aero/about-us/ Source]</sup>
−
== Other Aircraft Frequencies ==
 
−
=== [[Instrument Landing System (ILS) Frequencies|ILS, DME, VOR and TACAN]] ===
 
  
−
=== [http://en.wikipedia.org/wiki/Instrument_landing_system#Marker_beacons Marker Beacon] ===
+
At large airports (DFW, DEN, DTW, ORD, LAX, among many others), the ramps are controlled by the airlines, not the FAA air traffic control. The ramp controllers provide permission for aircraft to enter and park at their gates, push back from the gate and start, and maintain the flow of traffic in their alleyways. Most ramp frequencies are found in the 128.825-132.000 range. These ramp frequencies are seldom published by the FAA.
−
75.000 MHz
 
  
−
=== [http://en.wikipedia.org/wiki/Non_Directional_Beacon Non-Directional Beacon (NDB)] ===
+
Airline deice trucks at small and midsized stations often use the corresponding operations frequency. At hub airports, deice trucks often (not always) have dedicated frequencies; these dedicated frequencies often do not have a corresponding FCC license because its mobile to mobile and coordinated by ASRI.
−
190 - 530 kHz
 
−
1600 - 1800 kHz
 
  
−
== Federal Aviation Administration ==
+
==Conventions for Abbreviating Frequencies==
−
*[[Federal Aviation Administration]]
+
In the VHF band, frequency designations read over the radio are often abbreviated. Sometimes for brevity, sometimes as another way to read back a frequency assignment to make sure it was received correctly, and occasionally out of laziness. The following conventions have varying degrees of acceptance in the US.
−
*[http://nfdc.faa.gov/nasr/airportLookup FAA Airport Lookup]
+
* Ground frequencies: previously ground frequencies were assigned frequencies beginning in 121. So in reading back ground frequencies, the "121" may be assumed. So if the ground frequency is 121.600, it may be shorted to ".6" ("point six").
−
*[http://www.faa.gov/air_traffic/publications/atpubs/aim/ Aeronautical Information Manual]
+
* Omitting the last digit in a frequency ending in 5: because ATC frequencies are spaced at 0.025&nbsp;MHz (example, 132.000, 132.025, 132.050, 132.075) when the third decimal place is a 5 it may be omitted. So if the assigned frequency is 132.225, it may be read back as "132.22" ("one-three-two point two-two). This is perfectly acceptable by all controllers and users, many aircraft radios even omit the third decimal point.
 +
* Omitting the leading one: since VHF ATC frequencies begin with a 1, the 1 may be assumed. Not proper but still common. 123.050 can be shorted to "23.05" ("two-three point zero-five").
 +
* Middle four digits: combining the last two conventions and sometimes omitting the "point". 118.675 may be shorted to "1867" ("one-eight-six-seven" or "eighteen-sixty seven").
  
−
== Air Route Traffic Control Centers (ARTCC) ==
+
==See Also==
−
Each Center is indexed at the [[ARTCC]] article.
+
* [[ARINC Frequencies in the NE US]]
 +
* [[ARTCC|Air Route Traffic Control Center]]
 +
* [[Blimps]]
 +
* [[Federal Aviation Administration]]
 +
* [[Finding Air Traffic Frequencies]]
 +
* [[Heavy Lift Helicopters]]
 +
* [[HF]]
 +
** [[MWARA]] - Major World Air Route Areas support HF Radio communications to aircraft outside of VHF range.
 +
** [[VOLMET]] - Oceanic Weather
 +
* [[Instrument Landing System (ILS) Frequencies |Navigation Aids]] including ILS, DME, VOR, TACAN, Marker Beacons, and NDB
 +
* [[Safety of Flight]]
  
−
== MWARA ==
+
==External Links==
−
[[MWARA]] Major World Air Route Areas support HF Radio communications to aircraft outside of VHF range.  
+
===Federal Aviation Administration===
 +
* [https://www.faa.gov Federal Aviation Administration Home Page]
 +
* [https://www.faa.gov/air_traffic/flight_info/aeronav/Aero_Data/ Aeronautical Data] - Download the 28 Day NASR Subscription Data and other data.
 +
* [https://ais-faa.opendata.arcgis.com Aeronautical Information Services] - View and download maps of Class Airspace, ARTCC Boundary, etc.
 +
* [https://www.faa.gov/air_traffic/publications Air Traffic Plans and Publications] - Download the Aeronautical Information Manual and Pilot/Controller Glossary.
 +
* [https://www.faa.gov/airports/runway_safety/diagrams/ Airport Diagrams] - Search for and download airport diagrams.
 +
* [https://www.faa.gov/air_traffic/flight_info/aeronav/digital_products/ Digital Products] - Download various charts and supplements.
 +
* [https://www.1800wxbrief.com Flight Service]
 +
* [https://www.faa.gov/regulations_policies/handbooks_manuals Handbooks and Manuals]
 +
* [https://registry.faa.gov/aircraftinquiry/NNum_Inquiry.aspx N-Number Inquiry] - Look up aircraft registration numbers.
 +
* [https://pilotweb.nas.faa.gov/PilotWeb PilotWeb] - Search for NOTAMS.
 +
* [https://sua.faa.gov Special Use Airspace (SUA)]
 +
* [https://tfr.faa.gov Temporary Flight Restrictions (TFR)]
  
−
== Finding Air Traffic Frequencies ==
+
===Aeronautical Data and Aircraft Tracking===
−
[[Finding Air Traffic Frequencies]]
+
;USA
 +
* [https://www.airnav.com AirNav.com] - Online airport and navaid info.
 +
* [https://flightaware.com FlightAware] - Real time flight tracking
 +
* [https://flightradar24.com FlightRadar24] - Real time flight tracking
 +
* [https://liveatc.net LiveATC.net] - Live air traffic control radio feeds
 +
* [https://planefinder.net planefinder.net] - Real time flight tracking (ADS-B) + 5 min delay (FAA Data)
 +
* [https://skyvector.com SkyVector.com] - Online aeronautical charts.
 +
* [https://vfrmap.com VFRMAP.com] - Online aeronautical charts.
 +
;Canada
 +
* [https://web.archive.org/web/20190714201918/http://www.canairradio.com:80/ Canadian Aeronautical Communications (Archive)] - Unmaintained since 2019 (<i>Live URL has been taken over by malicious actor</i>).
  
−
== Related Links ==
 
−
=== USA ===
 
−
* [http://www.airnav.com AirNav.com] - Online airport and navaid info.
 
−
* [http://skyvector.com SkyVector.com] - Online aeronautical charts.
 
−
* [http://vfrmap.com VFRMAP.com] - Online aeronautical charts.
 
−
* [[Safety of Flight]]
 
−
* [[ARINC Frequencies in the NE US]]
 
−
*[http://flightaware.com FlightAware] - Real time flight tracking
 
−
*[http://flightradar24.com FlightRadar24] - Real time flight tracking
 
−
*[http://liveatc.net LiveATC.net] - Live air traffic control radio feeds
 
−
*[https://planefinder.net planefinder.net] - Real time flight tracking (ADS-B) + 5 min delay (FAA Data)
 
  
−
=== Canada ===
+
===Other Links===
−
* [http://www.canairradio.com Canadian Aeronautical Communications]
+
* [http://mt-fedfiles.blogspot.com/p/blog-page.html The Fed Files] Nationwide Military Frequencies
 +
 
 +
== Files ==
 +
* [[media:ASRI_VHF_2022.zip|ASRI_VHF_2022.zip]] - Contains a Google Earth .kml map of ASRI VHF (128.825-136.975) ground stations.
 +
* [[media:FAA.zip|FAA.zip]] - Contains a Google Earth .kml map of ARTCCs, ARTCC boundaries, ARTCC RCAG sites, Partial list of ARTCC radar sites, AFSS Hubs, AFSS RCO sites, and Navaids.
  
 
== References ==
 
== References ==
−
* [http://www.ecfr.gov/cgi-bin/text-idx?&node=47:5.0.1.1.2.5.97.3&rgn=div8 47CFR87.173 Aeronautical Frequency Table]
+
* [https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D/part-87/subpart-E 47 CFR 87.173 Frequencies]
−
* [http://wireless.fcc.gov/aviation/ FCC Aviation Radio Service]
+
* [http://wireless.fcc.gov/services/index.htm?job=service_home&id=aviation FCC Aviation Radio Service]
 
* [http://www.faa.gov/documentLibrary/media/Order/6050_12A.pdf Southwest Region Spectrum Management Handbook] SW 6050.12A December 12, 2001
 
* [http://www.faa.gov/documentLibrary/media/Order/6050_12A.pdf Southwest Region Spectrum Management Handbook] SW 6050.12A December 12, 2001
 
* [http://www.faa.gov/documentLibrary/media/Order/6050_32B_WITH_CHG_1_AND_2_INCORPORATED.pdf Spectrum Management Regulations and Procedures Manual] JO 6050.32B November 17, 2005
 
* [http://www.faa.gov/documentLibrary/media/Order/6050_32B_WITH_CHG_1_AND_2_INCORPORATED.pdf Spectrum Management Regulations and Procedures Manual] JO 6050.32B November 17, 2005
 
<br>
 
<br>
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{{Refreshpage
 
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|Pageurl=http://wiki.radioreference.com/index.php/Aircraft}}
 
  
  
 +
{{Refreshpage}}
  
 
Return to Wiki page: [[Common Frequencies]]
 
Return to Wiki page: [[Common Frequencies]]
  
−
[[Category:US and Canadian Common Frequencies]]
+
[[Category:US and Canadian Common Aviation Frequencies]]
−
[[Category:Alabama Civil Aviation]]
+
[[Category:Canada Civil Aviation]]
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[[Category:Alabama Civil Aviation Frequencies]]
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[[Category:United States Civil Aviation]]
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[[Category:Alaska Civil Aviation]]
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[[Category:United States Civil Aviation Frequencies]]
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[[Category:Alaska Civil Aviation Frequencies]]
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[[Category:United States Fire Services Aviation]]
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[[Category:Arizona Civil Aviation]]
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[[Category:United States Fire Services Aviation Frequencies]]
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[[Category:Arizona Civil Aviation Frequencies]]
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[[Category:United States Law Enforcement Aviation]]
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[[Category:Arkansas Civil Aviation]]
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[[Category:United States Law Enforcement Aviation Frequencies]]
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[[Category:Arkansas Civil Aviation Frequencies]]
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[[Category:United States Medical Aviation]]
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[[Category:California Civil Aviation]]
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[[Category:United States Medical Aviation Frequencies]]
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[[Category:California Civil Aviation Frequencies]]
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[[Category:United States Military Aviation]]
−
[[Category:Colorado Civil Aviation]]
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[[Category:United States Military Aviation Frequencies]]
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[[Category:Colorado Civil Aviation Frequencies]]
 
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[[Category:Connecticut Civil Aviation]]
 
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[[Category:Connecticut Civil Aviation Frequencies]]
 
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[[Category:Delaware Civil Aviation]]
 
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[[Category:Delaware Civil Aviation Frequencies]]
 
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[[Category:District of Columbia Civil Aviation]]
 
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[[Category:District of Columbia Civil Aviation Frequencies]]
 
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[[Category:Florida Civil Aviation]]
 
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[[Category:Florida Civil Aviation Frequencies]]
 
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[[Category:Georgia Civil Aviation]]
 
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[[Category:Georgia Civil Aviation Frequencies]]
 
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[[Category:Hawaii Civil Aviation]]
 
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[[Category:Hawaii Civil Aviation Frequencies]]
 
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[[Category:Idaho Civil Aviation]]
 
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[[Category:Idaho Civil Aviation Frequencies]]
 
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[[Category:Illinois Civil Aviation]]
 
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[[Category:Illinois Civil Aviation Frequencies]]
 
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[[Category:Indiana Civil Aviation]]
 
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[[Category:Indiana Civil Aviation Frequencies]]
 
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[[Category:Iowa Civil Aviation]]
 
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[[Category:Iowa Civil Aviation Frequencies]]
 
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[[Category:Kansas Civil Aviation]]
 
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[[Category:Kansas Civil Aviation Frequencies]]
 
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[[Category:Kentucky Civil Aviation]]
 
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[[Category:Kentucky Civil Aviation Frequencies]]
 
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[[Category:Louisiana Civil Aviation]]
 
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[[Category:Louisiana Civil Aviation Frequencies]]
 
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[[Category:Maine Civil Aviation]]
 
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[[Category:Maine Civil Aviation Frequencies]]
 
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[[Category:Maryland Civil Aviation]]
 
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[[Category:Maryland Civil Aviation Frequencies]]
 
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[[Category:Massachusetts Civil Aviation]]
 
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[[Category:Massachusetts Civil Aviation Frequencies]]
 
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[[Category:Michigan Civil Aviation]]
 
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[[Category:Michigan Civil Aviation Frequencies]]
 
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[[Category:Minnesota Civil Aviation]]
 
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[[Category:Minnesota Civil Aviation Frequencies]]
 
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[[Category:Mississippi Civil Aviation]]
 
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[[Category:Mississippi Civil Aviation Frequencies]]
 
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[[Category:Missouri Civil Aviation]]
 
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[[Category:Missouri Civil Aviation Frequencies]]
 
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[[Category:Montana Civil Aviation]]
 
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[[Category:Montana Civil Aviation Frequencies]]
 
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[[Category:Nebraska Civil Aviation]]
 
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[[Category:Nebraska Civil Aviation Frequencies]]
 
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[[Category:Nevada Civil Aviation]]
 
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[[Category:Nevada Civil Aviation Frequencies]]
 
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[[Category:New Hampshire Civil Aviation]]
 
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[[Category:New Hampshire Civil Aviation Frequencies]]
 
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[[Category:New Jersey Civil Aviation]]
 
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[[Category:New Jersey Civil Aviation Frequencies]]
 
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[[Category:New Mexico Civil Aviation]]
 
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[[Category:New Mexico Civil Aviation Frequencies]]
 
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[[Category:New York Civil Aviation]]
 
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[[Category:New York Civil Aviation Frequencies]]
 
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[[Category:North Carolina Civil Aviation]]
 
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[[Category:North Carolina Civil Aviation Frequencies]]
 
−
[[Category:North Dakota Civil Aviation]]
 
−
[[Category:North Dakota Civil Aviation Frequencies]]
 
−
[[Category:Ohio Civil Aviation]]
 
−
[[Category:Ohio Civil Aviation Frequencies]]
 
−
[[Category:Oklahoma Civil Aviation]]
 
−
[[Category:Oklahoma Civil Aviation Frequencies]]
 
−
[[Category:Oregon Civil Aviation]]
 
−
[[Category:Oregon Civil Aviation Frequencies]]
 
−
[[Category:Pennsylvania Civil Aviation]]
 
−
[[Category:Pennsylvania Civil Aviation Frequencies]]
 
−
[[Category:Puerto Rico Civil Aviation]]
 
−
[[Category:Puerto Rico Civil Aviation Frequencies]]
 
−
[[Category:Rhode Island Civil Aviation]]
 
−
[[Category:Rhode Island Civil Aviation Frequencies]]
 
−
[[Category:South Carolina Civil Aviation]]
 
−
[[Category:South Carolina Civil Aviation Frequencies]]
 
−
[[Category:South Dakota Civil Aviation]]
 
−
[[Category:South Dakota Civil Aviation Frequencies]]
 
−
[[Category:Tennessee Civil Aviation]]
 
−
[[Category:Tennessee Civil Aviation Frequencies]]
 
−
[[Category:Texas Civil Aviation]]
 
−
[[Category:Texas Civil Aviation Frequencies]]
 
−
[[Category:Utah Civil Aviation]]
 
−
[[Category:Utah Civil Aviation Frequencies]]
 
−
[[Category:Vermont Civil Aviation]]
 
−
[[Category:Vermont Civil Aviation Frequencies]]
 
−
[[Category:Virginia Civil Aviation]]
 
−
[[Category:Virginia Civil Aviation Frequencies]]
 
−
[[Category:Washington Civil Aviation]]
 
−
[[Category:Washington Civil Aviation Frequencies]]
 
−
[[Category:West Virginia Civil Aviation]]
 
−
[[Category:West Virginia Civil Aviation Frequencies]]
 
−
[[Category:Wisconsin Civil Aviation]]
 
−
[[Category:Wisconsin Civil Aviation Frequencies]]
 
−
[[Category:Wyoming Civil Aviation]]
 
−
[[Category:Wyoming Civil Aviation Frequencies]]
 
−
 
 
−
[[Category:Alberta Civil Aviation]]
 
−
[[Category:Alberta Civil Aviation Frequencies]]
 
−
[[Category:British Columbia Civil Aviation]]
 
−
[[Category:British Columbia Civil Aviation Frequencies]]
 
−
[[Category:Manitoba Civil Aviation]]
 
−
[[Category:Manitoba Civil Aviation Frequencies]]
 
−
[[Category:New Brunswick Civil Aviation]]
 
−
[[Category:New Brunswick Civil Aviation Frequencies]]
 
−
[[Category:Newfoundland/Labrador Civil Aviation]]
 
−
[[Category:Newfoundland/Labrador Civil Aviation Frequencies]]
 
−
[[Category:Northwest Territories Civil Aviation]]
 
−
[[Category:Northwest Territories Civil Aviation Frequencies]]
 
−
[[Category:Nova Scotia Civil Aviation]]
 
−
[[Category:Nova Scotia Civil Aviation Frequencies]]
 
−
[[Category:Nunavut Civil Aviation]]
 
−
[[Category:Nunavut Civil Aviation Frequencies]]
 
−
[[Category:Ontario Civil Aviation]]
 
−
[[Category:Ontario Civil Aviation Frequencies]]
 
−
[[Category:Prince Edward Island Civil Aviation]]
 
−
[[Category:Prince Edward Island Civil Aviation Frequencies]]
 
−
[[Category:Quebec Civil Aviation]]
 
−
[[Category:Quebec Civil Aviation Frequencies]]
 
−
[[Category:Saskatchewan Civil Aviation]]
 
−
[[Category:Saskatchewan Civil Aviation Frequencies]]
 
−
[[Category:Yukon Civil Aviation]]
 
−
[[Category:Yukon Civil Aviation Frequencies]]
 
−
 
 
−
[[Category:Alabama Fire Services Aviation]]
 
−
[[Category:Alabama Fire Services Aviation Frequencies]]
 
−
[[Category:Alaska Fire Services Aviation]]
 
−
[[Category:Alaska Fire Services Aviation Frequencies]]
 
−
[[Category:Arizona Fire Services Aviation]]
 
−
[[Category:Arizona Fire Services Aviation Frequencies]]
 
−
[[Category:Arkansas Fire Services Aviation]]
 
−
[[Category:Arkansas Fire Services Aviation Frequencies]]
 
−
[[Category:California Fire Services Aviation]]
 
−
[[Category:California Fire Services Aviation Frequencies]]
 
−
[[Category:Colorado Fire Services Aviation]]
 
−
[[Category:Colorado Fire Services Aviation Frequencies]]
 
−
[[Category:Connecticut Fire Services Aviation]]
 
−
[[Category:Connecticut Fire Services Aviation Frequencies]]
 
−
[[Category:Delaware Fire Services Aviation]]
 
−
[[Category:Delaware Fire Services Aviation Frequencies]]
 
−
[[Category:District of Columbia Fire Services Aviation]]
 
−
[[Category:District of Columbia Fire Services Aviation Frequencies]]
 
−
[[Category:Florida Fire Services Aviation]]
 
−
[[Category:Florida Fire Services Aviation Frequencies]]
 
−
[[Category:Georgia Fire Services Aviation]]
 
−
[[Category:Georgia Fire Services Aviation Frequencies]]
 
−
[[Category:Hawaii Fire Services Aviation]]
 
−
[[Category:Hawaii Fire Services Aviation Frequencies]]
 
−
[[Category:Idaho Fire Services Aviation]]
 
−
[[Category:Idaho Fire Services Aviation Frequencies]]
 
−
[[Category:Illinois Fire Services Aviation]]
 
−
[[Category:Illinois Fire Services Aviation Frequencies]]
 
−
[[Category:Indiana Fire Services Aviation]]
 
−
[[Category:Indiana Fire Services Aviation Frequencies]]
 
−
[[Category:Iowa Fire Services Aviation]]
 
−
[[Category:Iowa Fire Services Aviation Frequencies]]
 
−
[[Category:Kansas Fire Services Aviation]]
 
−
[[Category:Kansas Fire Services Aviation Frequencies]]
 
−
[[Category:Kentucky Fire Services Aviation]]
 
−
[[Category:Kentucky Fire Services Aviation Frequencies]]
 
−
[[Category:Louisiana Fire Services Aviation]]
 
−
[[Category:Louisiana Fire Services Aviation Frequencies]]
 
−
[[Category:Maine Fire Services Aviation]]
 
−
[[Category:Maine Fire Services Aviation Frequencies]]
 
−
[[Category:Maryland Fire Services Aviation]]
 
−
[[Category:Maryland Fire Services Aviation Frequencies]]
 
−
[[Category:Massachusetts Fire Services Aviation]]
 
−
[[Category:Massachusetts Fire Services Aviation Frequencies]]
 
−
[[Category:Michigan Fire Services Aviation]]
 
−
[[Category:Michigan Fire Services Aviation Frequencies]]
 
−
[[Category:Minnesota Fire Services Aviation]]
 
−
[[Category:Minnesota Fire Services Aviation Frequencies]]
 
−
[[Category:Mississippi Fire Services Aviation]]
 
−
[[Category:Mississippi Fire Services Aviation Frequencies]]
 
−
[[Category:Missouri Fire Services Aviation]]
 
−
[[Category:Missouri Fire Services Aviation Frequencies]]
 
−
[[Category:Montana Fire Services Aviation]]
 
−
[[Category:Montana Fire Services Aviation Frequencies]]
 
−
[[Category:Nebraska Fire Services Aviation]]
 
−
[[Category:Nebraska Fire Services Aviation Frequencies]]
 
−
[[Category:Nevada Fire Services Aviation]]
 
−
[[Category:Nevada Fire Services Aviation Frequencies]]
 
−
[[Category:New Hampshire Fire Services Aviation]]
 
−
[[Category:New Hampshire Fire Services Aviation Frequencies]]
 
−
[[Category:New Jersey Fire Services Aviation]]
 
−
[[Category:New Jersey Fire Services Aviation Frequencies]]
 
−
[[Category:New Mexico Fire Services Aviation]]
 
−
[[Category:New Mexico Fire Services Aviation Frequencies]]
 
−
[[Category:New York Fire Services Aviation]]
 
−
[[Category:New York Fire Services Aviation Frequencies]]
 
−
[[Category:North Carolina Fire Services Aviation]]
 
−
[[Category:North Carolina Fire Services Aviation Frequencies]]
 
−
[[Category:North Dakota Fire Services Aviation]]
 
−
[[Category:North Dakota Fire Services Aviation Frequencies]]
 
−
[[Category:Ohio Fire Services Aviation]]
 
−
[[Category:Ohio Fire Services Aviation Frequencies]]
 
−
[[Category:Oklahoma Fire Services Aviation]]
 
−
[[Category:Oklahoma Fire Services Aviation Frequencies]]
 
−
[[Category:Oregon Fire Services Aviation]]
 
−
[[Category:Oregon Fire Services Aviation Frequencies]]
 
−
[[Category:Pennsylvania Fire Services Aviation]]
 
−
[[Category:Pennsylvania Fire Services Aviation Frequencies]]
 
−
[[Category:Puerto Rico Fire Services Aviation]]
 
−
[[Category:Puerto Rico Fire Services Aviation Frequencies]]
 
−
[[Category:Rhode Island Fire Services Aviation]]
 
−
[[Category:Rhode Island Fire Services Aviation Frequencies]]
 
−
[[Category:South Carolina Fire Services Aviation]]
 
−
[[Category:South Carolina Fire Services Aviation Frequencies]]
 
−
[[Category:South Dakota Fire Services Aviation]]
 
−
[[Category:South Dakota Fire Services Aviation Frequencies]]
 
−
[[Category:Tennessee Fire Services Aviation]]
 
−
[[Category:Tennessee Fire Services Aviation Frequencies]]
 
−
[[Category:Texas Fire Services Aviation]]
 
−
[[Category:Texas Fire Services Aviation Frequencies]]
 
−
[[Category:Utah Fire Services Aviation]]
 
−
[[Category:Utah Fire Services Aviation Frequencies]]
 
−
[[Category:Vermont Fire Services Aviation]]
 
−
[[Category:Vermont Fire Services Aviation Frequencies]]
 
−
[[Category:Virginia Fire Services Aviation]]
 
−
[[Category:Virginia Fire Services Aviation Frequencies]]
 
−
[[Category:Washington Fire Services Aviation]]
 
−
[[Category:Washington Fire Services Aviation Frequencies]]
 
−
[[Category:West Virginia Fire Services Aviation]]
 
−
[[Category:West Virginia Fire Services Aviation Frequencies]]
 
−
[[Category:Wisconsin Fire Services Aviation]]
 
−
[[Category:Wisconsin Fire Services Aviation Frequencies]]
 
−
[[Category:Wyoming Fire Services Aviation]]
 
−
[[Category:Wyoming Fire Services Aviation Frequencies]]
 
−
 
 
−
[[Category:Alberta Fire Services Aviation]]
 
−
[[Category:Alberta Fire Services Aviation Frequencies]]
 
−
[[Category:British Columbia Fire Services Aviation]]
 
−
[[Category:British Columbia Fire Services Aviation Frequencies]]
 
−
[[Category:Manitoba Fire Services Aviation]]
 
−
[[Category:Manitoba Fire Services Aviation Frequencies]]
 
−
[[Category:New Brunswick Fire Services Aviation]]
 
−
[[Category:New Brunswick Fire Services Aviation Frequencies]]
 
−
[[Category:Newfoundland/Labrador Fire Services Aviation]]
 
−
[[Category:Newfoundland/Labrador Fire Services Aviation Frequencies]]
 
−
[[Category:Northwest Territories Fire Services Aviation]]
 
−
[[Category:Northwest Territories Fire Services Aviation Frequencies]]
 
−
[[Category:Nova Scotia Fire Services Aviation]]
 
−
[[Category:Nova Scotia Fire Services Aviation Frequencies]]
 
−
[[Category:Nunavut Fire Services Aviation]]
 
−
[[Category:Nunavut Fire Services Aviation Frequencies]]
 
−
[[Category:Ontario Fire Services Aviation]]
 
−
[[Category:Ontario Fire Services Aviation Frequencies]]
 
−
[[Category:Prince Edward Island Fire Services Aviation]]
 
−
[[Category:Prince Edward Island Fire Services Aviation Frequencies]]
 
−
[[Category:Quebec Fire Services Aviation]]
 
−
[[Category:Quebec Fire Services Aviation Frequencies]]
 
−
[[Category:Saskatchewan Fire Services Aviation]]
 
−
[[Category:Saskatchewan Fire Services Aviation Frequencies]]
 
−
[[Category:Yukon Fire Services Aviation]]
 
−
[[Category:Yukon Fire Services Aviation Frequencies]]
 
−
 
 
−
[[Category:Alabama Law Enforcement Aviation]]
 
−
[[Category:Alabama Law Enforcement Aviation Frequencies]]
 
−
[[Category:Alaska Law Enforcement Aviation]]
 
−
[[Category:Alaska Law Enforcement Aviation Frequencies]]
 
−
[[Category:Arizona Law Enforcement Aviation]]
 
−
[[Category:Arizona Law Enforcement Aviation Frequencies]]
 
−
[[Category:Arkansas Law Enforcement Aviation]]
 
−
[[Category:Arkansas Law Enforcement Aviation Frequencies]]
 
−
[[Category:California Law Enforcement Aviation]]
 
−
[[Category:California Law Enforcement Aviation Frequencies]]
 
−
[[Category:Colorado Law Enforcement Aviation]]
 
−
[[Category:Colorado Law Enforcement Aviation Frequencies]]
 
−
[[Category:Connecticut Law Enforcement Aviation]]
 
−
[[Category:Connecticut Law Enforcement Aviation Frequencies]]
 
−
[[Category:Delaware Law Enforcement Aviation]]
 
−
[[Category:Delaware Law Enforcement Aviation Frequencies]]
 
−
[[Category:District of Columbia Law Enforcement Aviation]]
 
−
[[Category:District of Columbia Law Enforcement Aviation Frequencies]]
 
−
[[Category:Florida Law Enforcement Aviation]]
 
−
[[Category:Florida Law Enforcement Aviation Frequencies]]
 
−
[[Category:Georgia Law Enforcement Aviation]]
 
−
[[Category:Georgia Law Enforcement Aviation Frequencies]]
 
−
[[Category:Hawaii Law Enforcement Aviation]]
 
−
[[Category:Hawaii Law Enforcement Aviation Frequencies]]
 
−
[[Category:Idaho Law Enforcement Aviation]]
 
−
[[Category:Idaho Law Enforcement Aviation Frequencies]]
 
−
[[Category:Illinois Law Enforcement Aviation]]
 
−
[[Category:Illinois Law Enforcement Aviation Frequencies]]
 
−
[[Category:Indiana Law Enforcement Aviation]]
 
−
[[Category:Indiana Law Enforcement Aviation Frequencies]]
 
−
[[Category:Iowa Law Enforcement Aviation]]
 
−
[[Category:Iowa Law Enforcement Aviation Frequencies]]
 
−
[[Category:Kansas Law Enforcement Aviation]]
 
−
[[Category:Kansas Law Enforcement Aviation Frequencies]]
 
−
[[Category:Kentucky Law Enforcement Aviation]]
 
−
[[Category:Kentucky Law Enforcement Aviation Frequencies]]
 
−
[[Category:Louisiana Law Enforcement Aviation]]
 
−
[[Category:Louisiana Law Enforcement Aviation Frequencies]]
 
−
[[Category:Maine Law Enforcement Aviation]]
 
−
[[Category:Maine Law Enforcement Aviation Frequencies]]
 
−
[[Category:Maryland Law Enforcement Aviation]]
 
−
[[Category:Maryland Law Enforcement Aviation Frequencies]]
 
−
[[Category:Massachusetts Law Enforcement Aviation]]
 
−
[[Category:Massachusetts Law Enforcement Aviation Frequencies]]
 
−
[[Category:Michigan Law Enforcement Aviation]]
 
−
[[Category:Michigan Law Enforcement Aviation Frequencies]]
 
−
[[Category:Minnesota Law Enforcement Aviation]]
 
−
[[Category:Minnesota Law Enforcement Aviation Frequencies]]
 
−
[[Category:Mississippi Law Enforcement Aviation]]
 
−
[[Category:Mississippi Law Enforcement Aviation Frequencies]]
 
−
[[Category:Missouri Law Enforcement Aviation]]
 
−
[[Category:Missouri Law Enforcement Aviation Frequencies]]
 
−
[[Category:Montana Law Enforcement Aviation]]
 
−
[[Category:Montana Law Enforcement Aviation Frequencies]]
 
−
[[Category:Nebraska Law Enforcement Aviation]]
 
−
[[Category:Nebraska Law Enforcement Aviation Frequencies]]
 
−
[[Category:Nevada Law Enforcement Aviation]]
 
−
[[Category:Nevada Law Enforcement Aviation Frequencies]]
 
−
[[Category:New Hampshire Law Enforcement Aviation]]
 
−
[[Category:New Hampshire Law Enforcement Aviation Frequencies]]
 
−
[[Category:New Jersey Law Enforcement Aviation]]
 
−
[[Category:New Jersey Law Enforcement Aviation Frequencies]]
 
−
[[Category:New Mexico Law Enforcement Aviation]]
 
−
[[Category:New Mexico Law Enforcement Aviation Frequencies]]
 
−
[[Category:New York Law Enforcement Aviation]]
 
−
[[Category:New York Law Enforcement Aviation Frequencies]]
 
−
[[Category:North Carolina Law Enforcement Aviation]]
 
−
[[Category:North Carolina Law Enforcement Aviation Frequencies]]
 
−
[[Category:North Dakota Law Enforcement Aviation]]
 
−
[[Category:North Dakota Law Enforcement Aviation Frequencies]]
 
−
[[Category:Ohio Law Enforcement Aviation]]
 
−
[[Category:Ohio Law Enforcement Aviation Frequencies]]
 
−
[[Category:Oklahoma Law Enforcement Aviation]]
 
−
[[Category:Oklahoma Law Enforcement Aviation Frequencies]]
 
−
[[Category:Oregon Law Enforcement Aviation]]
 
−
[[Category:Oregon Law Enforcement Aviation Frequencies]]
 
−
[[Category:Pennsylvania Law Enforcement Aviation]]
 
−
[[Category:Pennsylvania Law Enforcement Aviation Frequencies]]
 
−
[[Category:Puerto Rico Law Enforcement Aviation]]
 
−
[[Category:Puerto Rico Law Enforcement Aviation Frequencies]]
 
−
[[Category:Rhode Island Law Enforcement Aviation]]
 
−
[[Category:Rhode Island Law Enforcement Aviation Frequencies]]
 
−
[[Category:South Carolina Law Enforcement Aviation]]
 
−
[[Category:South Carolina Law Enforcement Aviation Frequencies]]
 
−
[[Category:South Dakota Law Enforcement Aviation]]
 
−
[[Category:South Dakota Law Enforcement Aviation Frequencies]]
 
−
[[Category:Tennessee Law Enforcement Aviation]]
 
−
[[Category:Tennessee Law Enforcement Aviation Frequencies]]
 
−
[[Category:Texas Law Enforcement Aviation]]
 
−
[[Category:Texas Law Enforcement Aviation Frequencies]]
 
−
[[Category:Utah Law Enforcement Aviation]]
 
−
[[Category:Utah Law Enforcement Aviation Frequencies]]
 
−
[[Category:Vermont Law Enforcement Aviation]]
 
−
[[Category:Vermont Law Enforcement Aviation Frequencies]]
 
−
[[Category:Virginia Law Enforcement Aviation]]
 
−
[[Category:Virginia Law Enforcement Aviation Frequencies]]
 
−
[[Category:Washington Law Enforcement Aviation]]
 
−
[[Category:Washington Law Enforcement Aviation Frequencies]]
 
−
[[Category:West Virginia Law Enforcement Aviation]]
 
−
[[Category:West Virginia Law Enforcement Aviation Frequencies]]
 
−
[[Category:Wisconsin Law Enforcement Aviation]]
 
−
[[Category:Wisconsin Law Enforcement Aviation Frequencies]]
 
−
[[Category:Wyoming Law Enforcement Aviation]]
 
−
[[Category:Wyoming Law Enforcement Aviation Frequencies]]
 
−
 
 
−
[[Category:Alberta Law Enforcement Aviation]]
 
−
[[Category:Alberta Law Enforcement Aviation Frequencies]]
 
−
[[Category:British Columbia Law Enforcement Aviation]]
 
−
[[Category:British Columbia Law Enforcement Aviation Frequencies]]
 
−
[[Category:Manitoba Law Enforcement Aviation]]
 
−
[[Category:Manitoba Law Enforcement Aviation Frequencies]]
 
−
[[Category:New Brunswick Law Enforcement Aviation]]
 
−
[[Category:New Brunswick Law Enforcement Aviation Frequencies]]
 
−
[[Category:Newfoundland/Labrador Law Enforcement Aviation]]
 
−
[[Category:Newfoundland/Labrador Law Enforcement Aviation Frequencies]]
 
−
[[Category:Northwest Territories Law Enforcement Aviation]]
 
−
[[Category:Northwest Territories Law Enforcement Aviation Frequencies]]
 
−
[[Category:Nova Scotia Law Enforcement Aviation]]
 
−
[[Category:Nova Scotia Law Enforcement Aviation Frequencies]]
 
−
[[Category:Nunavut Law Enforcement Aviation]]
 
−
[[Category:Nunavut Law Enforcement Aviation Frequencies]]
 
−
[[Category:Ontario Law Enforcement Aviation]]
 
−
[[Category:Ontario Law Enforcement Aviation Frequencies]]
 
−
[[Category:Prince Edward Island Law Enforcement Aviation]]
 
−
[[Category:Prince Edward Island Law Enforcement Aviation Frequencies]]
 
−
[[Category:Quebec Law Enforcement Aviation]]
 
−
[[Category:Quebec Law Enforcement Aviation Frequencies]]
 
−
[[Category:Saskatchewan Law Enforcement Aviation]]
 
−
[[Category:Saskatchewan Law Enforcement Aviation Frequencies]]
 
−
[[Category:Yukon Law Enforcement Aviation]]
 
−
[[Category:Yukon Law Enforcement Aviation Frequencies]]
 
−
 
 
−
[[Category:Alabama Medical Aviation]]
 
−
[[Category:Alabama Medical Aviation Frequencies]]
 
−
[[Category:Alaska Medical Aviation]]
 
−
[[Category:Alaska Medical Aviation Frequencies]]
 
−
[[Category:Arizona Medical Aviation]]
 
−
[[Category:Arizona Medical Aviation Frequencies]]
 
−
[[Category:Arkansas Medical Aviation]]
 
−
[[Category:Arkansas Medical Aviation Frequencies]]
 
−
[[Category:California Medical Aviation]]
 
−
[[Category:California Medical Aviation Frequencies]]
 
−
[[Category:Colorado Medical Aviation]]
 
−
[[Category:Colorado Medical Aviation Frequencies]]
 
−
[[Category:Connecticut Medical Aviation]]
 
−
[[Category:Connecticut Medical Aviation Frequencies]]
 
−
[[Category:Delaware Medical Aviation]]
 
−
[[Category:Delaware Medical Aviation Frequencies]]
 
−
[[Category:District of Columbia Medical Aviation]]
 
−
[[Category:District of Columbia Medical Aviation Frequencies]]
 
−
[[Category:Florida Medical Aviation]]
 
−
[[Category:Florida Medical Aviation Frequencies]]
 
−
[[Category:Georgia Medical Aviation]]
 
−
[[Category:Georgia Medical Aviation Frequencies]]
 
−
[[Category:Hawaii Medical Aviation]]
 
−
[[Category:Hawaii Medical Aviation Frequencies]]
 
−
[[Category:Idaho Medical Aviation]]
 
−
[[Category:Idaho Medical Aviation Frequencies]]
 
−
[[Category:Illinois Medical Aviation]]
 
−
[[Category:Illinois Medical Aviation Frequencies]]
 
−
[[Category:Indiana Medical Aviation]]
 
−
[[Category:Indiana Medical Aviation Frequencies]]
 
−
[[Category:Iowa Medical Aviation]]
 
−
[[Category:Iowa Medical Aviation Frequencies]]
 
−
[[Category:Kansas Medical Aviation]]
 
−
[[Category:Kansas Medical Aviation Frequencies]]
 
−
[[Category:Kentucky Medical Aviation]]
 
−
[[Category:Kentucky Medical Aviation Frequencies]]
 
−
[[Category:Louisiana Medical Aviation]]
 
−
[[Category:Louisiana Medical Aviation Frequencies]]
 
−
[[Category:Maine Medical Aviation]]
 
−
[[Category:Maine Medical Aviation Frequencies]]
 
−
[[Category:Maryland Medical Aviation]]
 
−
[[Category:Maryland Medical Aviation Frequencies]]
 
−
[[Category:Massachusetts Medical Aviation]]
 
−
[[Category:Massachusetts Medical Aviation Frequencies]]
 
−
[[Category:Michigan Medical Aviation]]
 
−
[[Category:Michigan Medical Aviation Frequencies]]
 
−
[[Category:Minnesota Medical Aviation]]
 
−
[[Category:Minnesota Medical Aviation Frequencies]]
 
−
[[Category:Mississippi Medical Aviation]]
 
−
[[Category:Mississippi Medical Aviation Frequencies]]
 
−
[[Category:Missouri Medical Aviation]]
 
−
[[Category:Missouri Medical Aviation Frequencies]]
 
−
[[Category:Montana Medical Aviation]]
 
−
[[Category:Montana Medical Aviation Frequencies]]
 
−
[[Category:Nebraska Medical Aviation]]
 
−
[[Category:Nebraska Medical Aviation Frequencies]]
 
−
[[Category:Nevada Medical Aviation]]
 
−
[[Category:Nevada Medical Aviation Frequencies]]
 
−
[[Category:New Hampshire Medical Aviation]]
 
−
[[Category:New Hampshire Medical Aviation Frequencies]]
 
−
[[Category:New Jersey Medical Aviation]]
 
−
[[Category:New Jersey Medical Aviation Frequencies]]
 
−
[[Category:New Mexico Medical Aviation]]
 
−
[[Category:New Mexico Medical Aviation Frequencies]]
 
−
[[Category:New York Medical Aviation]]
 
−
[[Category:New York Medical Aviation Frequencies]]
 
−
[[Category:North Carolina Medical Aviation]]
 
−
[[Category:North Carolina Medical Aviation Frequencies]]
 
−
[[Category:North Dakota Medical Aviation]]
 
−
[[Category:North Dakota Medical Aviation Frequencies]]
 
−
[[Category:Ohio Medical Aviation]]
 
−
[[Category:Ohio Medical Aviation Frequencies]]
 
−
[[Category:Oklahoma Medical Aviation]]
 
−
[[Category:Oklahoma Medical Aviation Frequencies]]
 
−
[[Category:Oregon Medical Aviation]]
 
−
[[Category:Oregon Medical Aviation Frequencies]]
 
−
[[Category:Pennsylvania Medical Aviation]]
 
−
[[Category:Pennsylvania Medical Aviation Frequencies]]
 
−
[[Category:Puerto Rico Medical Aviation]]
 
−
[[Category:Puerto Rico Medical Aviation Frequencies]]
 
−
[[Category:Rhode Island Medical Aviation]]
 
−
[[Category:Rhode Island Medical Aviation Frequencies]]
 
−
[[Category:South Carolina Medical Aviation]]
 
−
[[Category:South Carolina Medical Aviation Frequencies]]
 
−
[[Category:South Dakota Medical Aviation]]
 
−
[[Category:South Dakota Medical Aviation Frequencies]]
 
−
[[Category:Tennessee Medical Aviation]]
 
−
[[Category:Tennessee Medical Aviation Frequencies]]
 
−
[[Category:Texas Medical Aviation]]
 
−
[[Category:Texas Medical Aviation Frequencies]]
 
−
[[Category:Utah Medical Aviation]]
 
−
[[Category:Utah Medical Aviation Frequencies]]
 
−
[[Category:Vermont Medical Aviation]]
 
−
[[Category:Vermont Medical Aviation Frequencies]]
 
−
[[Category:Virginia Medical Aviation]]
 
−
[[Category:Virginia Medical Aviation Frequencies]]
 
−
[[Category:Washington Medical Aviation]]
 
−
[[Category:Washington Medical Aviation Frequencies]]
 
−
[[Category:West Virginia Medical Aviation]]
 
−
[[Category:West Virginia Medical Aviation Frequencies]]
 
−
[[Category:Wisconsin Medical Aviation]]
 
−
[[Category:Wisconsin Medical Aviation Frequencies]]
 
−
[[Category:Wyoming Medical Aviation]]
 
−
[[Category:Wyoming Medical Aviation Frequencies]]
 
−
 
 
−
[[Category:Alberta Medical Aviation]]
 
−
[[Category:Alberta Medical Aviation Frequencies]]
 
−
[[Category:British Columbia Medical Aviation]]
 
−
[[Category:British Columbia Medical Aviation Frequencies]]
 
−
[[Category:Manitoba Medical Aviation]]
 
−
[[Category:Manitoba Medical Aviation Frequencies]]
 
−
[[Category:New Brunswick Medical Aviation]]
 
−
[[Category:New Brunswick Medical Aviation Frequencies]]
 
−
[[Category:Newfoundland/Labrador Medical Aviation]]
 
−
[[Category:Newfoundland/Labrador Medical Aviation Frequencies]]
 
−
[[Category:Northwest Territories Medical Aviation]]
 
−
[[Category:Northwest Territories Medical Aviation Frequencies]]
 
−
[[Category:Nova Scotia Medical Aviation]]
 
−
[[Category:Nova Scotia Medical Aviation Frequencies]]
 
−
[[Category:Nunavut Medical Aviation]]
 
−
[[Category:Nunavut Medical Aviation Frequencies]]
 
−
[[Category:Ontario Medical Aviation]]
 
−
[[Category:Ontario Medical Aviation Frequencies]]
 
−
[[Category:Prince Edward Island Medical Aviation]]
 
−
[[Category:Prince Edward Island Medical Aviation Frequencies]]
 
−
[[Category:Quebec Medical Aviation]]
 
−
[[Category:Quebec Medical Aviation Frequencies]]
 
−
[[Category:Saskatchewan Medical Aviation]]
 
−
[[Category:Saskatchewan Medical Aviation Frequencies]]
 
−
[[Category:Yukon Medical Aviation]]
 
−
[[Category:Yukon Medical Aviation Frequencies]]
 
−
 
 
−
[[Category:Alabama Military Aviation]]
 
−
[[Category:Alabama Military Aviation Frequencies]]
 
−
[[Category:Alaska Military Aviation]]
 
−
[[Category:Alaska Military Aviation Frequencies]]
 
−
[[Category:Arizona Military Aviation]]
 
−
[[Category:Arizona Military Aviation Frequencies]]
 
−
[[Category:Arkansas Military Aviation]]
 
−
[[Category:Arkansas Military Aviation Frequencies]]
 
−
[[Category:California Military Aviation]]
 
−
[[Category:California Military Aviation Frequencies]]
 
−
[[Category:Colorado Military Aviation]]
 
−
[[Category:Colorado Military Aviation Frequencies]]
 
−
[[Category:Connecticut Military Aviation]]
 
−
[[Category:Connecticut Military Aviation Frequencies]]
 
−
[[Category:Delaware Military Aviation]]
 
−
[[Category:Delaware Military Aviation Frequencies]]
 
−
[[Category:District of Columbia Military Aviation]]
 
−
[[Category:District of Columbia Military Aviation Frequencies]]
 
−
[[Category:Florida Military Aviation]]
 
−
[[Category:Florida Military Aviation Frequencies]]
 
−
[[Category:Georgia Military Aviation]]
 
−
[[Category:Georgia Military Aviation Frequencies]]
 
−
[[Category:Hawaii Military Aviation]]
 
−
[[Category:Hawaii Military Aviation Frequencies]]
 
−
[[Category:Idaho Military Aviation]]
 
−
[[Category:Idaho Military Aviation Frequencies]]
 
−
[[Category:Illinois Military Aviation]]
 
−
[[Category:Illinois Military Aviation Frequencies]]
 
−
[[Category:Indiana Military Aviation]]
 
−
[[Category:Indiana Military Aviation Frequencies]]
 
−
[[Category:Iowa Military Aviation]]
 
−
[[Category:Iowa Military Aviation Frequencies]]
 
−
[[Category:Kansas Military Aviation]]
 
−
[[Category:Kansas Military Aviation Frequencies]]
 
−
[[Category:Kentucky Military Aviation]]
 
−
[[Category:Kentucky Military Aviation Frequencies]]
 
−
[[Category:Louisiana Military Aviation]]
 
−
[[Category:Louisiana Military Aviation Frequencies]]
 
−
[[Category:Maine Military Aviation]]
 
−
[[Category:Maine Military Aviation Frequencies]]
 
−
[[Category:Maryland Military Aviation]]
 
−
[[Category:Maryland Military Aviation Frequencies]]
 
−
[[Category:Massachusetts Military Aviation]]
 
−
[[Category:Massachusetts Military Aviation Frequencies]]
 
−
[[Category:Michigan Military Aviation]]
 
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Latest revision as of 14:58, 5 January 2023

Aircraft use Airband as their primary means of voice communication. In North America, the spectrum from 118.000 to 136.975 MHz is used with 25 kHz spacing and AM. As of 2010 aeronautical enroute and flight test stations may use 8.33 kHz spaced channels in the 121.4-123.6, 128.825-132.0 and 136.5-136.875 MHz ranges.

VHF Allocation - 118-137 MHz

Lower Frequency Upper Frequency Allocation
118.000 121.400 ATC
121.425 121.450 Gov AWOS/ASOS
121.475 Band Protection for 121.500
121.500 Emergency Frequency (Guard)
121.525 Band Protection for 121.500
121.550 121.575 Gov AWOS/ASOS
121.600 121.925 ATC (Old Ground Control Frequency Band)
121.775 SAR ELT Location Training
121.950 Aviation Support
121.975 FSS Private Aircraft Advisory
122.000 122.050 EFAS (Callsign "Flightwatch" terminated 10/1/2015 and merged with FSS)
122.075 122.675 FSS Private Aircraft Advisory
122.700 122.725 UNICOM - Uncontrolled Airports
122.750 Fixed Wing Aircraft - Air to Air
122.775 Aviation Support
122.800 UNICOM - Uncontrolled Airports
122.825 Domestic VHF
122.850 MULTICOM
122.875 UNICOM - Domestic VHF
122.900 MULTICOM - SAR Training
122.925 MULTICOM - Special Use/ National Response Management
122.950 UNICOM - Full Time ATCT, FSS
122.975 123.000 UNICOM - Uncontrolled Airports
123.025 Helicopter Air-to-Air
123.025 123.075 UNICOM - Uncontrolled Airports
123.100 SAR; Temp. ATCTs and Fly-ins with SAR Coordination
123.125 123.275 Flight Test
123.300 Aviation Support
123.325 123.475 Flight Test (123.450 Used for Air-to-Air Communications Over Remote and Oceanic Areas Out of Range of VHF Ground Stations)
123.500 Aviation Support
123.525 123.575 Flight Test
123.600 123.650 ATC (Formerly Air Carrier Advisory. FSS Uses Phased Out)
123.675 126.175 ATC
126.200 Military Common (Advisory)
126.225 128.800 ATC
128.825 132.000 Operational Control. Coordinated by ARINC (See Airline Operations Below)
132.025 134.075 ATC
134.100 Military Common (Advisory)
134.125 135.825 ATC
135.850 FAA Flight Inspection
135.875 135.925 ATC
135.950 FAA Flight Inspection
135.975 136.400 ATC
136.425 136.475 Old FIS. (Now Unallocated)
136.500 136.875 Domestic VHF
136.900 136.975 International and Domestic VHF

FAA Order 6050.32B Change 1 Appendix 2 Figure 1.

Common Civilian Frequencies

Frequency  Type  Tone  Alpha Tag  Description  Mode  Tag 
121.50000  M  CSQ  VHF Guard Aircraft Emergency and Distress (VHF Guard)  AM  Aircraft 
121.95000  M  CSQ  AvSup 121.95 Aviation Support  AM  Business 
122.75000  M  CSQ  Air-Air 122.750 Aircraft air-to-air  AM  Aircraft 
122.77500  M  CSQ  AvSup 122.775 Aviation Support  AM  Business 
122.85000  M  CSQ  Multi 122.85 Multicom, Aviation Support  AM  Aircraft 
122.90000  M  CSQ  Multi 122.9 Multicom, Search and Rescue Training  AM  Aircraft 
122.92500  M  CSQ  Multi 122.925 Multicom - Special Use, Natural resource management  AM  Aircraft 
123.02500  M  CSQ  Helo Air-Air Helicopter Air-to-Air  AM  Aircraft 
123.10000  M  CSQ  SAR Primary Search and Rescue primary, ATC for special events secondary  AM  Aircraft 
123.12500  M  CSQ  FlightTest123.12 Flight Test itinerant  AM  Business 
123.15000  M  CSQ  FlightTest123.15 Flight Test itinerant  AM  Business 
123.17500  M  CSQ  FlightTest123.17 Flight Test itinerant  AM  Business 
123.20000  M  CSQ  FlightTest123.2 Flight Test  AM  Business 
123.22500  M  CSQ  FlightTest123.22 Flight Test  AM  Business 
123.25000  M  CSQ  FlightTest123.25 Flight Test  AM  Business 
123.27500  M  CSQ  FlightTest123.27 Flight Test  AM  Business 
123.30000  M  CSQ  AvSup 123.3 Aviation Support  AM  Business 
123.32500  M  CSQ  FlightTest123.32 Flight Test  AM  Business 
123.35000  M  CSQ  FlightTest123.35 Flight Test  AM  Business 
123.37500  M  CSQ  FlightTest123.37 Flight Test  AM  Business 
123.40000  M  CSQ  FlightTest123.4 Flight Test itinerant  AM  Business 
123.42500  M  CSQ  FlightTest123.42 Flight Test itinerant  AM  Business 
123.45000  M  CSQ  FlightTest123.45 Flight Test/Unofficial Air-to-Air  AM  Business 
123.47500  M  CSQ  FlightTest123.47 Flight Test  AM  Business 
123.50000  M  CSQ  AvSup 123.5 Aviation Support  AM  Business 
123.52500  M  CSQ  FlightTest123.52 Flight Test  AM  Business 
123.55000  M  CSQ  FlightTest123.55 Flight Test  AM  Business 
123.57500  M  CSQ  FlightTest123.57 Flight Test  AM  Business 
126.20000  M  CSQ  MilCom 126.2 Military Common (advisory)  AM  Aircraft 
134.10000  M  CSQ  MilCom 134.1 Military Common (advisory)  AM  Aircraft 
135.85000  M  CSQ  FltIns135.85 FAA Flight Inspection  AM  Federal 
135.95000  M  CSQ  FltIns135.95 FAA Flight Inspection  AM  Federal 
122.20000  M  CSQ  Flt Watch Wx Flight Watch Weather  AM  Aircraft 
129.52500  M  CSQ  Deicing Comm Deicing Common  AM  Business 
121.77500  M  CSQ  ELT Training Emergency Locator Transmitter (ELT) Training Beacons  AM  Aircraft 
122.70000  M  CSQ  FAA 122.700 Unicom  AM  Aircraft 
122.72500  M  CSQ  FAA 122.725 Unicom  AM  Aircraft 
122.80000  M  CSQ  FAA 122.8 Unicom  AM  Aircraft 
122.97500  M  CSQ  FAA 122.975 Unicom  AM  Aircraft 
123.00000  M  CSQ  FAA 123.000 Unicom  AM  Aircraft 
123.05000  M  CSQ  FAA 123.05 Unicom  AM  Aircraft 
123.07500  M  CSQ  FAA 123.075 Unicom  AM  Aircraft 
122.95000  BM  CSQ  Unicom 122.95 Unicom - Controlled Airports  AM  Aircraft 


Common Military Frequencies

In recent years many PMSV stations have moved off of the four older nationwide common frequencies. 

243.0000  Aircraft Emergency and Distress (Military Guard)
257.8000  Air Traffic Control (Military Common)
282.8000  Search and Rescue
255.4000  FAA Flight Service Stations
296.7000  FAA Flight Service Stations
239.8000  PMSV (Pilot to Metro Service - weather advisory)
342.5000  PMSV
344.6000  PMSV
375.2000  PMSV
303.0000  Air-to-air "Winchester"
311.0000  USAF ACC Command Posts Pimary
321.0000  USAF ACC Command Posts Secondary
381.3000  USAF ACC Command Posts
319.4000  USAF AMC Command Posts  
349.4000  USAF AMC Command Posts
252.1000  USAF Reserve Command Posts
351.2000  USAF Reserve Command Posts
364.2000  USAF NORAD AICC Primary
380.0000  FAA Flight Inspection/ SMO Ground Personnel
380.1000  FAA Flight Inspection/ SMO Ground Personnel


ARINC En Route Service

ARINC operates a wide area radio network, primarily to enable airline customers to create voice patches. It is available above 20,000 feet and on the ground at select airports. Use examples include pilot to dispatch, maintenance control, or medical advisors. This is usually used to supplement ACARS or in lieu of ACARS if it is inoperative on an aircraft. This way airline dispatchers can maintain operational control of their aircraft in flight. Delta Air Lines maintains a similar but separate network called "Atlanta Radio".

In the contiguous US, the base station callsign is "San Francisco Radio" except on Gulf Net, Maritime Net and Mex Net which are "New York Radio."

VHF en route frequencies changed effective 04 Apr 2012: 

128.9000  Southwest USA
129.4000  Northeast USA / Great Lakes Area / Canada West Coast and Anchorage
129.4500  East Central USA
131.8000  Northwest USA
129.9000  Maritime Net (Northeast Coast USA)
130.7000  Mexico / Caribbean
131.1750  Southeast USA
130.4000  West Central USA
131.9500  Pacific Net (West Coast USA and Hawaii)


Aircraft Communications Addressing and Reporting System (ACARS)

ACARS data is used to send messages to and from commercial airlines' aircraft.

Frequency  Type  Alpha Tag  Description  Mode  Tag 
131.72500  BM  ACARS SITA Base Base Frequency  Telm  Data 
129.35000  BM  SITA 129.35 En Route  Telm  Data 
130.87500  BM  SITA 130.875 Terminal  Telm  Data 
131.65000  BM  SITA 131.650 Terminal  Telm  Data 
128.97500  BM  SITA 128.975 Terminal - Spare  Telm  Data 
131.00000  BM  SITA 131.000 Terminal - Spare  Telm  Data 
131.47500  BM  SITA 131.475 DataPlus (Air Canada) En Route  Telm  Data 



Balloon Operations

123.3000 Common air-to-ground (pilot-to-chase crew), shared with glider ops.
123.5000 Common air-to-ground (pilot-to-chase crew), shared with glider ops.
122.7500 Common air-to-air
122.0000 AFSS Weather requests


Airline Operations

The frequencies between 128.825-132.000 and 136.500-136.975 MHz are managed and coordinated by Aviation Spectrum Resources, Inc (ASRI). ASRI was spun off from Aeronautical Radio, INC (ARINC) in 2010. ARINC is now owned by Collins Aerospace and ASRI is owned by a consortium of U.S. airlines. Operations such as pilot to FBO, pilot to airline ground operation station, pilot to dispatch via a radio network such as San Francisco Radio, and deice trucks are found almost exclusively between 128.825-132.000. Coordinating and FCC licensing is handled by ASRI. The licensee in FCC licenses is almost always ASRI, thus obfuscating the license's user. Source

At large airports (DFW, DEN, DTW, ORD, LAX, among many others), the ramps are controlled by the airlines, not the FAA air traffic control. The ramp controllers provide permission for aircraft to enter and park at their gates, push back from the gate and start, and maintain the flow of traffic in their alleyways. Most ramp frequencies are found in the 128.825-132.000 range. These ramp frequencies are seldom published by the FAA.

Airline deice trucks at small and midsized stations often use the corresponding operations frequency. At hub airports, deice trucks often (not always) have dedicated frequencies; these dedicated frequencies often do not have a corresponding FCC license because its mobile to mobile and coordinated by ASRI.

Conventions for Abbreviating Frequencies

In the VHF band, frequency designations read over the radio are often abbreviated. Sometimes for brevity, sometimes as another way to read back a frequency assignment to make sure it was received correctly, and occasionally out of laziness. The following conventions have varying degrees of acceptance in the US.

  • Ground frequencies: previously ground frequencies were assigned frequencies beginning in 121. So in reading back ground frequencies, the "121" may be assumed. So if the ground frequency is 121.600, it may be shorted to ".6" ("point six").
  • Omitting the last digit in a frequency ending in 5: because ATC frequencies are spaced at 0.025 MHz (example, 132.000, 132.025, 132.050, 132.075) when the third decimal place is a 5 it may be omitted. So if the assigned frequency is 132.225, it may be read back as "132.22" ("one-three-two point two-two). This is perfectly acceptable by all controllers and users, many aircraft radios even omit the third decimal point.
  • Omitting the leading one: since VHF ATC frequencies begin with a 1, the 1 may be assumed. Not proper but still common. 123.050 can be shorted to "23.05" ("two-three point zero-five").
  • Middle four digits: combining the last two conventions and sometimes omitting the "point". 118.675 may be shorted to "1867" ("one-eight-six-seven" or "eighteen-sixty seven").

See Also

External Links

Federal Aviation Administration

Aeronautical Data and Aircraft Tracking

USA
Canada


Other Links

Files

  • ASRI_VHF_2022.zip - Contains a Google Earth .kml map of ASRI VHF (128.825-136.975) ground stations.
  • FAA.zip - Contains a Google Earth .kml map of ARTCCs, ARTCC boundaries, ARTCC RCAG sites, Partial list of ARTCC radar sites, AFSS Hubs, AFSS RCO sites, and Navaids.

References



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