Us Frequency Allocations Chart
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1Fixed
MARITIME MOBILE
FIXED
MARITIME
MARITIME
MARITIME MOBILE
MARITIME MOBILE
Aeronautical
UNITED
FIXED
MOBILE
MOBILE
Mobile
RADIONAVIGATION
RADIONAVIGATION
Radiolocation
NOT ALLOCATED
Radiolocation
FIXED
MARITIME
AERONAUTICAL
FIXED
FIXED
FIXED
FIXED
MARITIME
MOBILE
RADIONAVIGATION
FIXED
MARITIME MOBILE
MOBILE
3
kHz
300 kHz
STATES
MARITIME
MARITIME
Aeronautical
AERONAUTICAL
FIXED
MOBILE
MOBILE
Aeronautical
Radionavigation
RADIONAVIGATION
Radionavigation
(Radio Beacons)
(RADIO BEACONS)
LAND MOBILE
LAND MOBILE
BROADCASTING
MOBILE
(AM RADIO)
MOBILE
MOBILE
MARITIME
Aeronautical
MARITIME
RADIONAVIGATION
Mobile
MOBILE
(RADIO BEACONS)
RADIO-
LOCATION
FIXED
FIXED
FREQUENCY
TRAVELERS INFORMATION SERVICE AT 1610 kHz
300
3 MHz
kHz
FIXED
FIXED
FIXED
FIXED
ALLOCATIONS
MARITIME
MARITIME
MARITIME
MARITIME
FIXED
FIXED
MOBILE**
AMATEUR
MOBILE
MOBILE
MOBILE
MOBILE
MOBILE**
Mobile
Mobile*
Radio-
location
THE RADIO SPECTRUM
ISM – 6.78 ± .015 MHz
ISM – 13.560 ± .007 MHz
ISM – 27.12 ± .163 MHz
3 MHz
30 MHz
RADIO SERVICES COLOR LEGEND
MOBILE
MOBILE
MOBILE
MOBILE
MOBILE
AERONAUTICAL
INTER-SATELLITE
RADIO ASTRONOMY
LAND
LAND
LAND
LAND
LAND
BROADCASTING
BROADCASTING
BROADCASTING
BROADCASTING
AERONAUTICAL
MOBILE
MOBILE
MOBILE
MOBILE
MOBILE
MOBILE
AMATEUR
(TV CHANNELS 2-4)
(TV CHANNELS 5-6)
(FM RADIO)
RADIONAVIGATION
(TV CHANNELS 7-13)
MOBILE SATELLITE
FIXED
FIXED
FIXED
FIXED
AERONAUTICAL
RADIODETERMINATION
LAND MOBILE
MOBILE SATELLITE
SATELLITE
FIXED
AERONAUTICAL
LAND MOBILE
137-139 SPACE RESEARCH (SPACE TO EARTH)
RADIOLOCATION
30 MHz
ISM – 40.68 ± .02 MHz
300 MHz
RADIONAVIGATION
SATELLITE
AMATEUR
MARITIME MOBILE
RADIOLOCATION SATELLITE
Fixed
MOBILE
MOBILE
Radiolocation
Amateur
BROADCASTING
(TV CHANNELS 14-20)
MARITIME MOBILE
AMATEUR SATELLITE
RADIONAVIGATION
MOBILE
MOBILE
BROADCASTING
BROADCASTING
LAND MOBILE
AERONAUTICAL
FIXED #
FIXED
METEOROLOGICAL
FIXED
SATELLITE
(TV CHANNELS 21-36)
(TV CHANNELS 38-69)
RADIONAVIGATION
SATELLITE
SATELLITE
AIDS
RADIOLOCATION
LAND MOBILE
MET. SAT.
AERONAUTICAL
MARITIME
RADIONAVIGATION
FIXED
FIXED
BROADCASTING
(s-E)
RADIONAVIGATION
RADIONAVIGATION
SATELLITE
ISM – 915.0 ± 13 MHz
1850-1910 AND 1930-1990 MHz ARE ALLOCA
TED TO PCS; 1910-1930 MHz
ISM – 2450.0 ± 50 MHz
BROADCASTING
METEOROLOGICAL
300 MHz
IS DESIGNATED FOR UNLICENSED PCS DEVICES
3 GHz
SPACE OPERATION
SATELLITE
AIDS
EARTH EXPLORATION
METEOROLOGICAL
FIXED
SPACE RESEARCH
Amateur
FIXED
FIXED
MOBILE
SATELLITE
SATELLITE
SATELLITE
FIXED
FIXED
(S-E)
Radiolocation
SATELLITE
SATELLITE
SATELLITE
SATELLITE
(E-S)
(S-E)
(S-E)
(S-E)
Radiolocation
STANDARD FREQUENCY
FIXED
FIXED
MOBILE
MOBILE
AND TIME SIGNAL
FIXED
RADIO-
FIXED
Mobile **
FIXED
LOCATION
FIXED
RADIO-
FIXED
SATELLITE
STANDARD FREQUENCY
LOCATION
FIXED SATELLITE
(S-E)
MOBILE SATELLITE
AND TIME SIGNAL SATELLITE
ISM – 5.8 ± .075 GHz
3 GHz
ISM – 24.125 ± 0.125 GHz
30 GHz
ACTIVITY CODE
EARTH
EARTH
EARTH
Radio-
EXPLORATION
Radio-
RADIO-
RADIO-
GOVERNMENT EXCLUSIVE
GOVERNMENT/ NON-GOVERNMENT SHARED
EXPLORATION
FIXED
INTER-
EARTH
EXPLORATION
INTER-
FIXED
RADIO-
Mobile
SATELLITE
MOBILE
EARTH
location
location
NAVIGATION
FIXED
EARTH
NAVIGATION
SATELLITE
SATELLITE
RADIO
SATELLITE
Amateur
SATELLITE (Passive)
SATELLITE
(Passive)
EXPLORATION
EXPLORATION
SATELLITE
SATELLITE
SATELLITE
EXPLORATION
ASTRONOMY
ASTRONOMY
SATELLITE
(Passive)
MOBILE
MOBILE
(E-S)
Satellite
SATELLITE
(S-E)
(E-S)
MOBILE
SATELLITE
SATELLITE
SATELLITE
SATELLITE
(Passive)
(Passive)
RADIO-
(Passive)
INTER-
RADIO-
SPACE
(S-E)
(E-S)
NAVIGATION
SATELLITE
NAVIGATION
RESEARCH (Passive)
FIXED
SPACE
RADIO-
RADIO-
RADIO-
SATELLITE
RADIO-
Fixed
LOCATION
FIXED
SATELLITE
RESEARCH
LOCATION
NAVIGATION
NAVIGATION
(E-S)
(Passive)
SPACE
SPACE
RADIO-
SPACE
NON-GOVERNMENT EXCLUSIVE
Amateur
SPACE
INTER-
RADIO-
SPACE
MOBILE
RESEARCH
NAVIGATION
MOBILE
MOBILE
RESEARCH
RESEARCH
RESEARCH
SATELLITE
NAVIGATION
RESEARCH
(Passive)
(Passive)
SATELLITE
MOBILE
(Passive)
(Passive)
(Passive)
/BROAD-
MOBILE
MOBILE
MOBILE
MOBILE
MOBILE
MOBILE
CASTING/
SATELLITE
SATELLITE
SATELLITE
(E-S)
MOBILE
MOBILE
FIXED
FIXED
MOBILE
MOBILE
SATELLITE
SATELLITE
SATELLITE
SATELLITE
FIXED
(S-E)
(E-S)
EARTH
RADIO
RADIO
ALLOCATION USAGE DESIGNATION
BROAD-
FIXED
FIXED
RADIO-
RADIO
FIXED
EXPLORATION
FIXED
CASTING
ASTRONOMY
ASTRONOMY
FIXED
MOBILE
ASTRONOMY
FIXED
FIXED
SATELLITE
FIXED
SATELLITE
LOCATION
MOBILE
FIXED
MOBILE
FIXED
MOBILE
SATELLITE
(Passive)
(E-S)
SERVICE
EXAMPLE
DESCRIPTION
ISM – 61.25 ± .250 GHz
ISM – 122.5 ± .500 GHz
ISM – 245.0 ± 1GHz
300 GHz
30 GHz
Primary
FIXED
Capital Letters
59-64 GHz IS DESIGNATED FOR
UNLICENSED DEVICES
Secondary
Mobile
1st Capital with lower case letters
Permitted
/BROADCASTING/
Capital Letters between oblique strokes
* EXCEPT AERO MOBILE (R)
WAVELENGTH
3 x 10
7
m
3 x 10
6
m
3 x 10
5
m
30,000 m
3,000 m
300 m
30 m
3 m
30 cm
3 cm
0.3 cm
0.03 cm
3 x 10
5
Å
3 x 10
4
Å
3 x 10
3
Å
3 x 10
2
Å
0
1
3 x 10Å
0
x
1
3Å
0
1
3 x 10
x
-1
Å3
0
x
1
0
-2
Å3
1
x
-3
Å3
x
-4
Å3
-5
Å3
-6
Å
3 x 10
-7
Å
** EXCEPT AERO MOBILE
‡‡ BAND TO BE DESIGNATED FOR MIXED USE
BAND
VERY LOW FREQUENCY (VLF)
LF
MF
HF
VHF
UHF
SHF
EHF
INFRARED
VISIBLE
ULTRAVIOLET
X-RAY
GAMMA-RAY
COSMIC-RAY
PLEASE NOTE: THE SPACING ALLOTED THE SERVICES IN THE
DESIGNATIONS
SPECTRUM SEGMENTS SHOWN IS NOT PROPORTIONAL TO THE
# BAND ALLOCATED TO PERSONAL COMMUNICATIONS SERVICES (PCS)
Radar
PLS
X
C
Audible Range
AM Broadcast
FM Broadcast
Radar
Sub-Millimeter
Visible
Ultraviolet
Gamma-ray
Cosmic-ray
ACTUAL AMOUNT OF SPECTRUM OCCUPIED.
ACTIVITIES
Bands
Infra-sonics
Sonics
Ultra-sonics
Microwaves
Infrared
X-ray
U.S. DEPARTMENT OF COMMERCE
FREQUENCY
0
10 Hz
100 Hz
1 kHz
10 kHz
100 kHz
1 MHz
10 MHz
100 MHz
1 GHz
10 GHz
100 GHz
1 THz
10
13
Hz
10
14
Hz
10
15
Hz
10
16
Hz
10
17
Hz
10
18
Hz
10
19
Hz
10
20
Hz
10
21
Hz
10
22
Hz
10
23
Hz
10
24
Hz
10
25
Hz
National Telecommunications and Information Administration
THE RADIO SPECTRUM
Office of Spectrum Management
3 kHz
MAGNIFIED ABOVE
300 GHz
March 1996
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Parent category: Education