Where can aviation signals be found?

Aviation Radio Bands and Frequencies

A large number of aviation frequencies can be received by the Kenwood R-5000 receiver at this website.

Types of Aviation Radio Signals Some aviation signals can be classified as being purely for navigation (NAV) or communication (COM), but others are used for both. For example, some aircraft navigation beacons and VHF Omnirange (VOR) navigation stations also transmit voice communications.

The Low Frequency (LF) Aviation Band
Low frequencies were very important to air navigation years ago, but became increasingly less important as more reliable systems operating at higher frequencies were developed and became widely available. Many Low Frequency navigation beacons were decommissioned long ago because of that. The few that remain primarily provide backup navigation in the event of primary navigation system failures, although some are used routinely even today in the execution of instrument landings.

Long ago, before VHF Omnirange (VOR) and other superior navigation systems were developed, that band contained AN Radio Ranges and Non-Directional Beacons (NDB's). 344 AN Radio Ranges still existed in the United States in 1959, but none exist today. Some NDB's are all that remain.

The Low Frequency (LF) aviation band extends from 200 kHz to 415 kHz with some internal gaps assigned to other services. The entire Low Frequency (LF) aviation band can be received by the receiver at this website.

Medium Frequency Aviation Band Usage
The only portion of the Medium Frequency spectrum allocated for aviation use is the 2850 to 3000 kHz portion of the 2850 to 3155 kHz Aviation Band. However, most aircraft are equipped with radio direction finders than can receive Medium Frequency AM Broadcast Band.

High Frequency (HF) Aviation Bands
High Frequencies were widely used for domestic aircraft voice communications years ago. Nearly all that traffic moved to Very High Frequencies long ago and domestic aircraft use of Medium Frequencies is now very rare. However, international flights still use the High Frequencies bands routinely for voice communications, because of the much longer distances over which they can be used. All these frequencies can be received by the receiver at this website.

High Frequency Aviation Bands

Frequency Band	Allocation	SLC Receiver Receivable
2850- 3155 kHz	Aviation (2850 to 3000 portion is MF)	Yes
3400- 3500 kHz	Aviation SSB (3 KHz Channel spacing)	Yes
4650- 4750 kHz	Aviation	Yes
5450- 5730 kHz	Aviation SSB (3 KHz Channel spacing)	Yes
6525- 6765 kHz	Aviation	Yes
8815- 9040 kHz	Aviation USB (3 KHz Channel spacing)	Yes
10005- 10100 kHz	Aviation	Yes
11175- 11400 kHz	Aviation USB (3 KHz Channel spacing)	Yes
13200- 13360 kHz	Aviation SSB (3 KHz Channel spacing)	Yes
15010- 15100 kHz	Aviation	Yes
17900- 18030 kHz	Aviation	Yes
20005- 21000 kHz	Aviation & International	Yes
21850- 22000 kHz	Aviation	Yes
21964 kHz	Aviation SSB Aviation Pacific	Yes
22720- 23200 kHz	Fixed Aviation & International	Yes
23200- 23350 kHz	Aviation	Yes
23350- 24890 kHz	Fixed Aviation & International	Yes

Very High Frequency (VHF) Civil Aviation Band
The VHF Civil Aviation Band extends from 108 to 136 MHz with the allocations shown below.

The VHF 108 to 136 MHz Civil Aviation Band

Frequencies	llocation	SLC Receiver Receivable
108.000- 112.000 MHz	Aviation Terminal VOR and ILS Navigation (80 Channels)	Yes
112.000- 117.950 MHz	Aviation VOR Navigation (120 Channels)	Yes
118.000- 136.000 MHz	Aviation Communication (720 Channels)	Yes
121.500 MHz	Aviation Distress	Yes
121.600 MHz	Civil Air Patrol (Authorized use only)	Yes
121.700 MHz	Aviation Ground Control	Yes
118.000- 121.400 MHz	Air Traffic Control (Towers and ARTCC's)	Yes
121.600 MHz	Civil Air Patrol Training Beacons	Yes
121.650 MHz	Aviation Ground Control	Yes
121.700 MHz	Aviation Ground Control	Yes
121.750 MHz	Aviation Ground Control	Yes
121.775 MHz	Civil Air Patrol Training Beacons	Yes
121.800 MHz	Aviation Ground Control	Yes
121.850 MHz	Aviation Ground Control	Yes
121.900 MHz	Aviation Ground Control	Yes
121.900 MHz	Flight Schools	Yes
121.957 MHz	Flight Service Stations	Yes
122.000 MHz	Flight Advisory Service	Yes
122.025- 122.675 MHz	Flight Service Stations	Yes
122.250 MHz	Balloons	Yes
122.400 MHz	Flight Service Stations	Yes
122.600 MHz	Flight Service Stations	Yes
122.700 MHz	Aviation UNICOM Uncontrolled Airports	Yes
122.725 MHz	Aviation UNICOM Private Airports	Yes
122.750 MHz	Aviation Air to Air Communications	Yes
122.775 MHz	Air Shows & Air-to-air Communications	Yes
122.800 MHz	Aviation UNICOM Uncontrolled Airports	Yes
122.825 MHz	ARINC	Yes
122.850 MHz	Aviation Multicom	Yes
122.875 MHz	ARINC	Yes
122.900 MHz	Aviation UNICOM Uncontrolled Airports and Search and Rescue Training	Yes
122.925 MHz	Aviation UNICOM/Multicom/Air Shows	Yes
122.950 MHz	Aviation UNICOM Controlled Airports	Yes
122.975 MHz	Aviation UNICOM	Yes
122.975 MHz	Airplane to Airplane (high altitude airliners)	Yes
123.000 MHz	Aviation UNICOM	Yes
123.050 MHz	Aviation UNICOM	Yes
123.050 MHz	Aviation Heliports	Yes
123.075 MHz	Aviation UNICOM	Yes
123.075 MHz	Aviation Heliports	Yes
123.000 MHz	Aviation UNICOM Uncontrolled airports	Yes
123.025 MHz	Helicopters Air-to-air Communications	Yes
123.050 MHz	Aviation UNICO Heliports	Yes
123.075 MHz	Aviation UNICOM Heliports	Yes
123.100 MHz	Search and Rescue/Civil Air Patrol	Yes
123.125- 123.476 MHz	Flight Test	Yes
123.200 MHz	Flight Schools	Yes
123.300 MHz	Flight Schools & Balloons	Yes
123.325 MHz	Air Shows	Yes
123.350 MHz	NASA	Yes
123.400 MHz	Flight Schools	Yes
123.425 MHz	Air Shows	Yes
123.450 MHz	Air to Air (trans-ocean unofficial)	Yes, but out of range
123.475 MHz	U.S. Army Golden Knights	Yes
123.500 MHz	Flight Schools & Balloons	Yes
123.525- 123.575 MHz	Flight testing	Yes
123.600- 128.800 MHz	Air Traffic Control (Towers/ARTCC's)	Yes
126.200 MHz	Military Airport Towers	Yes
128.625 MHz	NASA/NOAA Research	Yes
128.825- 132.000 MHz	ARINC	Yes
130.650 MHz	Military Airlift Command	Yes
134.100 MHz	Military Airports - Ground Control Approach (GCA) Radar	Yes
135.850 MHz	Federal Aviation Administration (FAA)	Yes
135,950 MHz	Federal Aviation Administration (FAA)	Yes

Other Aviation-Related VHF Frequencies

Frequency	Allocation	SLC Receiver Receivable
136.000- 136.975 MHz	Air Control/Unicom/Future Use	Yes
148.125 MHz	Civil Air Patrol Repeaters - Secondary	Yes
148.150 MHz	Civil Air Patrol Repeaters - Primary	Yes
156.300 MHz	Aircraft-to-Ship - Safety	Yes, but out of range
156.400 MHz	Aircraft-to-Ship - Commercial	Yes, but out of range
156.425 MHz	Aircraft-to-Ship - Non-Commercial	Yes, but out of range
156.450 MHz	Aircraft-to-Ship - Commercial	Yes, but out of range
156.625 MHz	Aircraft-to-Ship - Non-Commercial	Yes, but out of range
156.690 MHz	Aircraft-to-Ship - Commercial	Yes, but out of range