Frequency Allocations

Brooke Clark, N6GCE, 2000 - 2022




 Wavelength
 Frequency
ULF 100,000 km to 10,000 km 3 - 30 Hz
ELF 10,000 km to 1,000 km 30  to 300 Hz
VF 1,000 km to 100 km 300 Hz  to 3 kHz
VLF 100 km to 10 km 3-30 kHz
LF 10 km to 1 km 30-300 kHz
MF 1 km to 100 Meters 300 - 3000 kHz
HF 100 to 10 Meters 3 - 30 MHz
VHF 10 to 1 Meter 30 - 300 MHz
UHF 1 Meter to 10 cm 300 MHz - 3 GHz
SHF 10 cm to 1 cm 3 - 30 GHz
EHF 1 cm to 100 mm 30 -300 GHz

Spectrum Plots
Links

ULF 100,000 km to 10,000 km (3 - 30 Hz)

 
User
Hz
Schumann fundamental 7
Schumann second harmonic 13
Mains Power Grid 16 2/3

ELF 10,000 km to 1,000 km (30 - 300 Hz)

 
User
Hz
Sub coms 45
Mains Power Grid (has many harmonics)
 50, 60
SANGUINE  sub coms
Project ELF Wiki
 76

VF Voice Frequency, 1,000 km to 100 km  (300 Hz to 3 kHz)

Less than 10 kHz

VLF 100 km to 10 km (3-30 kHz)

 10 - 15 kHz - 15 - 20 Khz - 20 - 25 kHz - 25 - 30 kHz
User kHz
No official Allocations below 10
<10
Earth Whistlers Wiki
 10 - 15
Coms CW RTTY 11.9 - 21
Omega nonoperational, replaced by GPS Wiki
 10.2, 11.05,11.3, 13.6, 13.66
RSDN-20  Wiki
 11.904761 
12.648809 
14.880952
NSS - another NSS page off the air
 21.4
NRTF Lualualei, Hawaii - call NPM
 21.4
NCTS Cutler, Maine - call  NAA
 24.0
NRS (T) Jim Creek, Washington - call NLK
 24.8
CIA Final VLF Antenna Report
What is this? let me know
 24.0 to 26.0 kHz
NRTF Aguada, Puerto Rico - call NAU
 40.75
NCS H.E. Holt, Australia - call ??
 19.8
Navy sub coms  FAS VLF
14 - 60

LF   10 km to 1 km (30-300 kHz)

 
User
kHz
WWVB Time 60
Time Stations
 HBG-75, DCF77 -77.5
Loran-C U.S. shut down Feb 8, 2010 Wiki
RSDN-10 Wiki
 100
Europe Ham 135.7 - 137.8
FCC Part 15 LWCA 160 - 190
NDB Wiki
 200 - 535
DGPS  Wiki
 283.5 - 325

MF 1 km to 100 Meters (300 - 3000 kHz)

 
User
kHz
NAVTEX  Wiki
 424, 490, 518
Maritime distress & calling (shut down 2012 ham use by permit)
 500
FCC Part 15  Wiki
 510 - 1705
AM BCB 540 - 1705
Ham 160 meter 1800 - 2000
Maritime 2000 - 2107
Maritime distress & calling 2182 USB
distress Selective Calling Wiki: DSC
 2187.5
# 2270 USB
120 meter BCB 2300 -  2495
WWV Time 2500
Aircraft 2851 - 3019

HF 100 to 10 Meters (3 - 30 MHz)

 
User
meter
MHz
#   3.025 - 3.199
Maritime search & rescue   3.023
small single engine airplanes Tx
3.0235
CHU Time    3.330
BCB 90 3.2 -  3.4
Air   3.413 - 3.485
Ham  80 3.5 to 4.0
Ham Mil Pri
 USB 3.996
Time   4.0
BCB  75 3.9 -  4.0
Maritime   4.0 - 4.435



Distress Selective Calling
   4.125 USB 
4.140 CW
4.2105 - 4219 SITOR-A 
4.2075 Wiki: DSC
Japan CW Emergency
 CW
 4.630
Air   4.666 - 4.678
ocean current-sensing radar
Rutgers Univ		   4.758
BCB  60 4.75 -  4.95
EBC Time   4.998
WWV Time   5.0
Alaska Emergency (Wiki)
   5.1675
Ham 60 meter USB
5.3715
Air   5.493 - 5733
Maritime search & rescue   5.680
Canadian AF AN/PRC-502
5.718
BCB  49 5.9 -  6.20
Maritime   6.2 - 6.525


Distress Selective Calling
   6.215 USB 
6.268 RTTY 
6.312 Wiki: DSC
Air   6.532 - 6.673
Industrial Scientific Medical Wiki
6.780
CHU Time   7.335
BCB  41 7.10 -  7.35
Ham  40 7.0 to 7.3
Ham Mil Pri
 USB 7.296
Ham Mil Sec
 USB 7.283
Time   8.0
Maritime   8.195 - 9.376
AN-CRT3       Distress
   8.28 (old) & 8.364 (new)


Distress Selective Calling
   8.364 USB
8.3765 RTTY 
8.4145 Wiki: DSC
VNG Time   8.638
Air   8.825 - 8.951
BCB  31 9.40 -  9.90
WWV Time   10.0
Air   10.018 - 10.096
Ham 30 10.1 to 10.15
Air   11.279 - 11.396
Air   12.057
BCB  25 11.60 - 12.10
Maritime   12.23 - 12.35


Distress Selective Calling
   12290 USB 
12.520 RTTY 
12.577 Wiki: DSC
VNG Time   12.984
ISM 13.0  
Air   13.261 - 13.373
Industrial Scientific Medical Wiki
13.56
BCB  22 13.57 - 13.87
Ham 20 14 to 14.35
Unofficial Distress
14.300
CHU Time   14.670
WWV Time   15.0
EBC Time   15.006
BCB  19 15.10 - 15.80
VNG Time   16.0


Distress Selective Calling
   16.42 USB 
16.695 RTTY 
16.8045 Wiki: DSC
BCB  16 17.48 - 17.90
Air   17.904 -  17.961
Ham  17 18.068 to 18.168
BCB  15 18.90 - 19.02
Maritime   19.681 - 19.797
WWV Time   20.0
Ham 15 21 to 21.45
BCB 13 21.45 - 21.85
Air   21.925
Old US mil Armored band
20.0 - 27.9
Maritime   22.000 - 22.852
Ham 12 24.89 to 24.99
WWV Time   25.0
BCB 11 25.60 - 26.10
ISM   27.0
Old US Artillery band
27.0 - 38.9
CB 10 26.965 - 27.405
Bus   27.43  - 27.53
Govt
27.71 - 27.79
Ham 10 28 to 29.7

VHF 10 to 1 Meter (30 - 300 MHz)

 
User
MHz
Scanner VHF Lo 30 - 54
Mil VHF Lo 30 - 88 (spectrum plot)
Bus/Govt 30.01 - 33.4
Pub Ser 33.4 - 33.98
Fire dispatch 33.7 & 33.9
Bus/Govt 34.01 - 35.18
Page 35 - 36
Bus/Ind/Tel 35.26 - 35.98
Govt 36.01 - 36.99
Pub Ser 37.02 - 37.42
Util 37.46 - 37.98
Old US Infantry band
 38.0 - 54.9
Govt 38.28 - 38.99
Pub Ser 39.02 - 39.98
FCC Part 15 Periodic Wiki
 40.66 - 40.70
Govt 40.01 - 41.99
Pub Ser 42.02 - 42.94
Distress calling
 40.5    (40.5 * 3 = 121.5) ( 40.5 * 6 = 243)
Bus/Tel 42.96 - 43.68
Paging 43 - 44
Cordless Phone 43.72 - 46.97
Govt 46.61 - 46.99
Govt/Ind/Amb/Util - State Hwy Maint 47.02 - 49.99
Baby Monitors 49.30 - 049.89
Ham 6 meter 50 to 54
Mil Pri
 51.0
Mil Sec
 51.6
Mil 3rd
 50.4
Mil 4th
 50.6
Cable TV
 54 to 1002 for 166 channels
TV Chan 2 (obsolete Dec 2011)
 54 to 60 audio= 60 - 0.25 video= 54 + 1.25
TV Chan 3 (obsolete Dec 2011) 60 to 66 audio 65.75
TV Chan 4 (obsolete Dec 2011) 66 to 72 audio 71.75
Pager 72.22
Hard of Hearing 72 - 76
Model Aircraft 50.xx, 53.xx, 72.xx, 75.xx
FCC Part 15 Periodic Wiki 70 - 130
Radio Astro 73.0 - 75.46
Airport Marker beacons Wiki
 75.0 MHz
TV Chan 5 (obsolete Dec 2011) 76 to 82 audio 81.75
TV Chan 6 (obsolete Dec 2011) 82 to 88 audio 87.75
FM BCB 88 to 108
WWII aircraft 100 to 156
Space to Ground DL
105 - 170
Scanner VHF Air 108 - 136
Aircraft ILS  Wiki
 108.1 to 111.9
VOR Wiki (TACAN) Wiki 
108 to 112
AM Air Band 
 118.000 to 135.975 (plot @ Ukiah)
Ominrange and Localizer Wiki
 108-126.9
Sat DL 136 - 138
Aircraft Emergency Chan
 121.5
aero multicom 122.9
ACARS  Wiki RadioWiki 
131.550 to 136.925
On-scene search & rescue aero 123.1
Air-2-Air party line
 123.45
AN/CRC-7 air-sea rescue  140.58
FCC Part 15 Periodic 130 - 174
Scanner VHF Hi  137 - 174
Mil VHF Hi & sonobuoy 136 - 174
Space Telemetry
 136 -138
Mil tactical training, air traffic control
REMBASS-I		 138 - 144
Ham 2 m 144 to 148
Govt (Space telemetry)
 148  - 150.775
Tow Trucks
 150.815 - 150.965
Govt 150.98 - 151.475
Pager 152 - 159 (152.238, 152.4825, 152.8425)
Personal Handheld 151.055 to 158.94
MURS  Wiki   RadioWiki
 151.82, 151.88, 151.94, 154.57 and 154.60
Taxi  152.xx
XJ (old) Mobile phone Rural Phone  151.48 - 158.1
Marine  156.05 - 162.000
Maritime Weather 162.550
Maritime distress & calling
 156.8
Outdoor Intrusion Detectors 160 - 176
Railroad 160 to 161
Maritime Tel 161 - 162
NOAA Weather Broadcasts 162
Govt sonobuoys & intrusion detectors 162.25 - 173.5
SAR Sonobuoy Chan 15
 172.75
Wireless Mics  169 to 172
FCC Part 15 Periodic
 174 - 260
TV Chan 7 (obsolete Dec 2011) 174 to 180
TV Chan 8 (obsolete Dec 2011) 180 to 186
TV Chan 9 (obsolete Dec 2011) 186 to 192
TV Chan 10 (obsolete Dec 2011) 192 to 198
TV Chan 11 (obsolete Dec 2011) 198 to 204
TV Chan 12 (obsolete Dec 2011) 204 to 210
TV Chan 13 (obsolete Dec 2011) 210 to 216
Mil space object detection SPASUR Wiki
216 to 220   (216.98)
Location (primary) 216 to -225
Short Dist Com (formerly IVDS) 218 to 219
Ham 1 1/4 meter (Secondary) 220 to 225
paging 220 to 222
Mil aircraft & satellite  225 - 400
mil Survival Radio beacon Freq
 243 (=2*121.5) (= 3 &
mil Survival Radio Traning
 245.0
mil Survival Radio
 247.3
mil Survival Radio
 248.2
mil Survival Radio Voice
 282.8
Mil Sat Com DL (& space telemery)
 242 - 270
Mil Sat Com UL 290 - 318
FCC Part 15 Peridoic 260 - 470
Space <-> ground
 247 to 298

UHF 1 Meter to 10 cm (300 MHz - 3 GHz)

 
User
MHz
P band Radar 300
Aircraft ILS 329.3 to 335.0
Telemetry (Weather balloons)
 400 - 406
Scanner UHF 406 - 512
EPIRB & ELT
 406.025
Satellite search & rescue
 406.01 - 406.9
Mil coms 406.1 - 420
Mil coms 403 - 470
Ham 70 cm  420 to 450
Ham 70 cm fast scan TV repeater input &
cable TV channel 60
 438 - 444 MHz
V carrier 439.25
Broadcast PU 450.xxx
Pub Ser/Util 451 - 454
Taxi  452.xxx
Pagers  454 - 460
Air <-> Ground Phones & Rural phones 454 & 459
Hospital  458.xxx - 468.xxx
Tel/Pgr 459.xxx
Bus/PubSer 460 - 462.525
FRS  Wiki
 462.5625 - 467.7125
GMRS  Wiki
 462.550 - 462.725 
467.550 - 467.725 
462.5625 - 462.7125
Bus/PubSer 462 - 469.975
Personal Handheld 469.2625 - 469.2625
tactical radio relay 600-1000
TV Chan 37  reserved for radio astronomy Wiki
 608 - 614
TV Chan 14 - 69 (obsolete Dec 2011) 470 to 806
guard band managed 746 to 747
guard band managed 762 to 764
guard band managed 776 to 777
guard band managed 792 to 794
Bus 806 - 810
Trunked radios  806 - 960
Cell Tx & Site Rx 824.04 - 848.97
Cell Rx & Site Tx 869.04 - 893.97
Cell 2 sides 870 - 877
Cell Digital control 877 - 880
Cell 1 side 882 - 894
Air <-> Ground Phones  894 & 895
Police  866.xxx - 868.xxx
Narrow band PCS 901 to 902
Industrial Scientific Medical Wiki
 902 - 928
Ham 33 cm  902 to 928
Cordless Phone 902.1 - 907.5 
926.1 - 927.4 
925.9750 - 927.9375
Narrow band PCS  Wiki
 930 to 931
Pagers  929 to 931 spacing 25 kHz
Narrow band PCS 940 to 941
DME - TACAN 962 - 1213
Aircraft Transponder (IFF)  Wiki
 1030, 1090
GPS L5 Wiki
 1176.45
aircraft DME 1215
GPS L2 Wiki 1227.60
Airport Surveillance Radar
PRC-154 Rifleman Radio
 1250 - 1380
1250 - 1390
Ham  1240 - 1300
Air/Ground Data Link & GPS L3 NDS  Wiki 1350 - 1400
LOS Radio, AN/TRC-190(V)
NATO Band III
 1350 - 1850
NDS (GPS L4)  fas  Wiki 1381.05
Mil air surveillance & defense radars 1215-1400
Radio Astronomy  (Hydrogen: ) 1420.40575177 Wiki
 1400 - 1427
Telemetry (unified L-band) Wiki
 1432 - 1435
L-band telemetry 1435 - 1540
Inmarsat DN  Wiki
 1525 - 1559
GPS L1  Wiki 1575.42
Iridium (77 LEOs) Wiki
1610.0 - 1626.5
Inmarsat UP  Wiki 1626.5 - 1660.5
Telemetry (Weather balloons)
 1675 - 1700
Govt 1710 - 1850
PRC-154 Rifleman Radio 1755-1850
PCS 1900 MHz band  (Wiki)
 1850 - 1885
Broadband PCS  Tx & Site Rx 1850.04 - 1909.92
Broadband PCS Rx & Site Tx 1930.08 - 1986.96
Multipoint Distribution Service & Unified S-Band UL
 2100 - 2200
S-band telemetry DL (unified S-band) Wiki Unified S-Band Wiki
 2200 - 2300
Wireless Communication Service (MDS) 2305 to 2320
Satellite to U.S. (geostationary sats)
XM Satellite Radio - 
Sirius Radio - 		 2320
flight test telemetry 2385–2390
Ham S band
 2300 - 2450
Wireless Communication Service 2345 to 2360
Microwave Ovens 2450
Bluetooth  Wiki
 2402 - 2480
Industrial Scientific Medical Wiki
 2400 - 2483.5
Instructional TV & MDS 2500 - 2700
Radio Astronomy Wiki
 2690 - 2700
Govt 2700  - 2900
Marine Radar
 2900 - 3100
AVIS 2900 - 3260

SHF 10 cm to 1 cm (3 - 30 GHz)

 
User
GHz
Radar
 3.0 - 3.5
C-band TV DL 3.7 - 4.2
Mil Surplus amp Patriot missile?
 4.1885 - 4.1965
Aircraft Altimeter 4.2 - 4.4
Height Finder, Patriot  5.2 - 5.52
Industrial Scientific Medical Wiki
 5.728 - 5.850
radar 5.9 - 6.4
C-band TV UL 6.5-6.9
Mil Sat Com DL FSC-78 7.25 -7.75
Mil Sat Com UL FSC-78
 7.9 - 8.4
Radar 8.5 - 9.6
Marine radar
 9.3 - 9.5
Ham X band
 10.0 - 10.5
X band Traffic radar 10.525
Ku band Sat TV Down link 11.7 - 12.2
Doppler Nav 13.3
Ku band Sat TV Up link 14.0 - 14.5
Milstar (Wiki) was good for data but not video, AEHF does video.
SCAMP AN/PSC-11 DL
Advanced Extremely High Frequency Satellites (Wiki)
20 dn
Ka, downlink
 20.2 -  21.2
K band traffic radar 24.150
Ham 24.0 - 24.25

EHF 1 cm to 1 mm (30 -300 GHz)

 
User
GHz
Ka, uplink
 30 - 31
Ku band traffic radar 33.4 - 36.0
SCAMP AN/PSC-11 UL
 40
Advanced Extremely High Frequency Satellites (Wiki)
 44 Up
ham 48 - 50 
ham 71 - 76
ham 165 - 170
ham  240 - 250
ham no official assignments above 300
 >300

Spectrum Plots

0 to 200 kHz
200 to 400 kHz
118 to 136 MHz
136 to 138 MHz
150 to 154 MHz
153 to 157 MHz 

Links

DL = Down Link, UL = Up Link
Superfreq.com - has the official allocation, but not any program names for example 90 to 110 kHz radionavigation not LORAN-C
Grove Ent - Monitoring Times - Monitoring Military Flight Demonstration Groups - Monitoring NASA Communications - Internet Resource Website List for Radio Monitoring -
U.S. Amateur Radio Band Plan Frequency Assignments -
TRANSMISSION FREQUENCY -
Frequently Asked Frequencies  -
FCC Frequency Band Plan -
Radio waves below 22 kHz -
ULF, ELF and VLF - LF Band Allocations -
Spectrum Reallocation Impacts - Chart.pdf -
Tables of  Frequency Allocations (Below 27.5 MHz) -
NTIA - US Frequency Allocation Chart -
FM 21-2 - Spectrum Management- Appendix E, Special -Purpose Frequencies -
NTIA Red Book - Law Enforcement  Incident Response  Frequency Plans - 162 to 174 and 406.1 to 420 MHz
Strong Signals -
J-3. Definitions

Taboo frequencies are any friendly functions/frequencies of such importance that they must never be deliberately jammed or interfered with by friendly forces. These functions/frequencies include international distress, stop buzzer (stop Electronic Attack), safety, and controller frequencies. These functions/frequencies are generally long-standing; however, they can be time-oriented, in that, as the combat/exercise situation changes, the restriction can be removed by the originating headquarters.

Protected functions/frequencies are those friendly functions/frequencies used for a particular operation, identified and protected to prevent them from being inadvertently jammed by friendly forces while active EW operations are directed against hostile forces. The functions/frequencies are of such critical importance that jamming is restricted unless absolutely necessary or until coordination with the using unit is made. They are time-oriented, can change with the tactical situation, and are updated periodically.

Guarded functions/frequencies are enemy functions/frequencies that are currently being exploited for combat information and intelligence. A guarded function/frequency is time-oriented, in that the list changes as the enemy assumes different combat postures. These functions/frequencies can be jammed after the commander has weighed the potential operational gain against the loss of technical and tactical information.

Amateur Radio Band Plans - what mode at what frequencies
FAA -Air Trafic Services - Facilities - Oakland AIFSS - Preflight Tools -
        Flight Service Station VHF Frequency List  (list for all states)
        Airport Layout Charts  & frequencies -   High Altitude Oakland - Low Altitude Oakland -
        Real-time Airport Status page -
MilAirComms - frequencies related to military air communications
HF ASIA, Monitoring from 10kHz to 30MHz - many digital modes
Hugh's Utility World (Monitoring Times) - many frequency lists
FEMA -Guidance For Radio Amateur Civil Emergency Service - Chapter 3 includes bands of operation
FAA - Air Traffic Publications - Special Military Operations  - Section 7. Electronic Attack (EA) Missions/Exercises -contains some frequencies to avoid during Electronic Attack
Frequencies used by Ham satellites -
UHF Military Air Frequencies -
Electromagnetic Radiation Spectrum -
USAF Global HF System Frequencies -
Radio Reference.com -
Submarine Coms spectrum plot -
Sven's Space Place - focus on Cold War space programs
Electromagnetic Spectrum Chart - using everyday language
Wiki Signal Identification Guide -

Back to Brooke's Electronics, Military Information, Home page
This is the [an error occurred while processing this directive] time this page has been accessed since 11 Oct. 2000.