Frequently Asked Frequencies
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GENERAL
800MHz Air-to-Ground Telephone
Airline Ground Support
Air-to-Ground Telephone
Aviation, General
Cellular Telephone
Citizen's Band
Cordless Telephone
Frequency Spectrum
GMRS - General Mobile Radio Service
Itinerant Business Frequencies Mobile Telephone
Marine
Medcom Channels
NOAA Weather Broadcasts
Microphones, Wireless
Railroad
Television
Taxicabs



Cellular Telephone

Channels
800-832
001-312
313-333
334-354
355-666
667-716
717-799
Freqs (base)
869.040 - 870.000
870.030 - 879.360
879.390 - 879.990
880.020 - 880.620
880.650 - 889.980
890.010 - 891.480
891.510 - 893.970
System
RCC - voice
RCC - voice
RCC - data
Telco - data
Telco - voice
RCC - voice
Telco - voice

Mobiles transmit 45 MHz below the base (824.040-848.970) and are usually repeated.
Channels are .030 MHz spacing

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Cordless Telephones

900 MHz
Ch.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 (B)
18 (C)
19
20 (D)
21 (A)
22 (E)
23
24
25
Base
43.720
43.740
43.820
43.840
43.920
43.960
44.120
44.160
44.180
44.200
44.320
44.360
44.400
44.460
44.480
46.610
46.630
46.670
46.710
46.730
46.770
46.830
46.870
46.930
46.970
Hand
48.760
48.840
48.860
48.920
49.000
49.080
49.100
49.160
49.200
49.240
49.280
49.360
49.400
49.480
49.500
49.670
49.845
49.860
49.770
49.875
49.830
49.890
49.930
49.990
49.970
Panasonic
KX-T9000

VTech
Tropez
900DX

AT&T
#9120

OTRON CORP.
#CP-1000

SAMSUNG
#SP-R912

L-Band

base 902.100-903.870
hand 926.100-927.870

base 905.600-907.500
hand 925.500-927.400
 

902.0-905.0
925.0-928.0

902.1-903.9
926.1-927.9

903.0
927.0

2.4 Ghz

60 chs
30 kHz sp

20 chs dig.
100 kHz sp
 

unconfirmed
 
 

 

Chs A - E hand freqs are also used for baby monitors and low pwr handie-talkies.
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Mobile Telephone

Base 152.030 - 152.210
152.510 - 152.810
RCC
telco
Mobile 157.770 - 158.070
158.490 - 158.670
telco
RCC
Ch sp is 30 kHz. These chs may now be for paging, specifically 152.78, is nationwide.

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Air-to-Ground Telephone

Channel
1
2
3
4
5
6
7
8
9
10
11
12
Signaling
Ground
454.950
454.900
454.850
454.800
454.750
454.700
454.725
454.775
454.825
454.875
454.925
454.975
454.675
Airborne
459.950
459.900
459.850
459.800
459.750
459.700
459.725
459.775
459.825
459.875
459.925
459.975
459.675

Transmissions are FM. Ground stas. repeat the airborne half of the call, and transmit a continuous tone when idle. From one to three chs are assigned in an area. (For city allocations, click here.) Service is used on private aircraft.

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800 MHz Air-to-Ground Telephone

Airborne Channels
Block
10
9
8
7
6
5
4
3
2
1
Channel 1
894.0055
894.2055
894.4055
894.6055
894.8055
895.0055
895.2055
895.4055
895.6055
895.8055
Channel 29
894.1735
894.3735
894.5735
894.7735
894.9735
895.1735
895.3735
895.5735
895.7735
895.9735
Guard Band - .x765-.x797
Control Channels - .x813-.x973
Transmissions are AM. Chs are sp 6 kHz apart. A specific block of 29 chs is assigned to each geographical area. (For city allocations, click here.) Ground freqs are 45 MHz lower and do not echo the airborne half of the conversation. Service is used on passenger airlines.

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Television
Channel
2
3
4
5
6
7
8
9
10
11
12
13
14
15
~~
68
69
Range
54 - 60
60 - 66
66 - 72
76 - 82
82 - 88
174 - 180
180 - 186
186 - 192
192 - 198
198 - 204
204 - 210
210 - 216
470 - 476
476 - 482
~~~
794 - 800
800 - 806
Video
55.250
61.250
67.250
77.250
83.250
175.250
181.250
187.250
193.250
199.250
205.250
211.250
471.250
477.250
~~~
795.250
801.250
Audio
59.750
65.750
71.750
81.750
87.750
179.750
185.750
191.750
197.750
203.750
209.750
215.750
475.750
481.750
~~~
799.750
805.750
Note the gaps between chs 4/5, 6/7, and 13/14. Each TV channel is 6 MHz wide. The video carrier is 1.25 MHz above the start of the range. The audio carrier is 0.250 MHz below the end of the range. Television audio is wideband FM.
Some TV stations may be offset +/- 10 kHz.         Back to top


Citizen's Band

Ch. - Freq.
1 - 26.965
2 - 26.975
3 - 26.985
4 - 27.005*
5 - 27.015
6 - 27.025
7 - 27.035
8 - 27.055*
9 - 27.065
10 - 27.075
Ch. - Freq.
11 - 27.085
12 - 27.105*
13 - 27.115
14 - 27.125
15 - 27.135
16 - 27.155*
17 - 27.165
18 - 27.175
19 - 27.185
20 - 27.205*
Ch. - Freq.
21 - 27.215
22 - 27.225
23 - 27.255**
24 - 27.235**
25 - 27.245**
26 - 27.265
27 - 27.275
28 - 27.285
29 - 27.295
30 - 27.305
Ch. - Freq.
31 - 27.315
32 - 27.325
33 - 27.335
34 - 27.345
35 - 27.355
36 - 27.365
37 - 27.375
38 - 27.385
39 - 27.395
40 - 27.405
* 26.995, 27.045, 27.095, 27.145, 27.195 are Remote Control freqs.
** note break in sequence

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GMRS - General Mobile Radio Service

Base/mobile
462.5500
462.5625
462.5750
462.5875
462.6000
462.6125
462.6250
462.6375
462.6500
462.6625
462.6750
462.6875
462.7000
462.7125
462.7250
Repeater Input
467.5500

 467.5750

 467.6000

 467.6250

 467.6500

 467.6750

 467.7000

 467.7250

In addition to the station's licensed channel, 462.675 may be used for emergency and traveler's aid by all stations. Interstitial channels (462.xxx5) may be used only in simplex mode with voice transmissions of no more than 5 watts.

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Railroads

Ch. - Freq.
2 - 159.810
3 - 159.930
4 - 160.050
5 - 160.185
6 - 160.200
7 - 160.215
8 - 160.230
~~ - ~~~~~~
96 - 161.550
97 - 161.565
UHF Freqs.
452.325
452.375
452.425
452.475
452.775
452.825
452.875
452.900
452.925
452.950

The ch is assigned by the Assoc. of American Railroads. Chs 2 through 6 are in Canada. Above ch 6, sp is 0.015 MHz.

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Marine Frequencies (Ship Disp.)

_CH ____ TX ___ RX __ Description
01A --156.050 156.050 Port Operations and Commercial, VTS.
05A --156.250 156.250 Port Operations or VTS.
06 -- 156.300 156.300 Intership Safety
07A --156.350 156.350 Commercial
08 -- 156.400 156.400 Commercial (Intership only)
09 -- 156.450 156.450 Boater Calling. Commercial and Non-Commercial.
10 -- 156.500 156.500 Commercial
11 -- 156.550 156.550 Commercial. VTS in selected areas.
12 -- 156.600 156.600 Port Operations. VTS in selected areas.
13 -- 156.650 156.650 Intership Navigation Safety (Bridge-to-bridge) Ships >20m.
14 -- 156.700 156.700 Port Operations. VTS in selected areas.
15 ---------- 156.750 Environmental (Receive only). Used by Class C EPIRBs.
16 ---156.800 156.800 International Distress, Safety and Calling.
17 -- 156.850 156.850 State Control
18A --156.900 156.900 Commercial
19A --156.950 156.950 Commercial
20 -- 157.000 161.600 Port Operations (duplex)
20A --157.000 157.000 Port Operations
21A --157.050 157.050 U.S. Coast Guard only
22A --157.100 157.100 Coast Guard Liaison and Maritime Safety Info. Broadcasts.
23A --157.150 157.150 U.S. Coast Guard only
24 -- 157.200 161.800 Public Correspondence (Marine Operator)
25 -- 157.250 161.850 Public Correspondence (Marine Operator)
26 -- 157.300 161.900 Public Correspondence (Marine Operator)
27 -- 157.350 161.950 Public Correspondence (Marine Operator)
28 -- 157.400 162.000 Public Correspondence (Marine Operator)
63A --156.175 156.175 Port Operations and Commercial, VTS.
65A --156.275 156.275 Port Operations
66A --156.325 156.325 Port Operations
67 -- 156.375 156.375 Commercial. Used for Bridge-to-bridge
68 -- 156.425 156.425 Non-Commercial
69 -- 156.475 156.475 Non-Commercial
70 -- 156.525 156.525 Digital Selective Calling
71 -- 156.575 156.575 Non-Commercial
72 -- 156.625 156.625 Non-Commercial (Intership only)
73 -- 156.675 156.675 Port Operations
74 -- 156.725 156.725 Port Operations
77 -- 156.875 156.875 Port Operations (Intership only)
78A --156.925 156.925 Non-Commercial
79A --156.975 156.975 Commercial. Non-Commercial in Great Lakes only
80A --157.025 157.025 Commercial. Non-Commercial in Great Lakes only
81A --157.075 157.075 U.S. Government only - EPA.
82A --157.125 157.125 U.S. Government only
83A --157.175 157.175 U.S. Coast Guard only
84 -- 157.225 161.825 Public Correspondence (Marine Operator)
85 -- 157.275 161.875 Public Correspondence (Marine Operator)
86 -- 157.325 161.925 Public Correspondence (Marine Operator)
AIS 1 161.975 161.975 Automatic Identification System (AIS)
AIS 2 162.025 162.025 Automatic Identification System (AIS)
88A --157.425 157.425 Commercial, Intership only.
Shore stations are 4.600 MHz above the ship frequency.
In U.S. waters the shore frequency may be used on Ch. 20, 24-28 & 84-87.
Ch. 1-5 & 60-64 are shared with other services.

On-board Communications:
Ch - mobile/repeater
1 - 467.750/457.525
2 - 467.775/457.550
3 - 467.800/457.575
4 - 467.825/457.600

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General Aviation Frequencies

121.500 - Emergencies
122.000 - Flight Advisory Service
122.200 - Flight Service Stations
122.700 - Unicom - Uncontrolled airports
122.725 - Unicom - Private airports
122.750 - Unicom - Air-to-air communications
122.800 - Unicom - Uncontrolled airports
122.900 - Search & resuce training, & uncontrolled airports
122.950 - Unicom - Controlled airports
123.000 - Unicom - Uncontrolled airports
123.025 - Helicopters - Air-to-air communications
123.050 - Unicom - Heliports
123.075 - Unicom - Heliports
123.100 - Search & Rescue
123.300 - Flight Schools
123.450 - Air-to-air communications (unofficial)
123.500 - Flight Schools
123.600 - Flight Service Stations - Uncontrolled airports
148.125 - Civil Air Patrol Repeaters - Secondary
148.150 - Civil Air Patrol Repeaters - Primary
156.300 - Aircraft-to-ship - safety
156.400 - Aircraft-to-ship - commercial
156.425 - Aircraft-to-ship - non-commercial
156.450 - Aircraft-to-ship - commercial
156.625 - Aircraft-to-ship - non-commercial
156.900 - Aircraft-to-ship - commercial
243.000 - Military Emergency "Guard"
255.400 - Flight Advisory Service
257.800 - Civilian Towers
311.000 - SAC Primary
321.000 - SAC Secondary
381.800 - USCG - Primary
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Airline Ground Support Frequencies

460.650
460.675
460.700
460.725
460.750
460.775
460.800
460.825
460.850
460.875

The .0125 interstitial frequencies are low power (2 watts maximum).

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Taxicab Frequencies

Base/Mobile
152.270/157.530
152.285/157.545
152.300/157.560
152.315/157.575
152.330/157.590
152.345/157.605
152.360/157.620
152.375/157.635
152.390/157.650
152.405/157.665
152.420/157.680
152.435/157.695
152.450/157.710
152.465/157.725
UHF Frequencies

 Base/Mobile
452.050/457.050
452.100/457.100
452.150/457.150
452.200/457.200
452.225/457.225
452.250/457.250
452.275/457.275
452.300/457.300
452.350/457.350
452.400/457.400
452.450/457.450
452.500/457.500

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Medcom Channels

Channel
9 (Disp. 1)
10 (Disp. 2)
1
2
3
4
5
6
7
8
Base/Rptr
462.950
462.975
463.000
463.025
463.050
463.075
463.100
463.125
463.150
463.175
Mobile
467.950
467.975
468.000
468.025
468.050
468.075
468.100
468.125
468.150
468.175

The .0125 interstitial frequencies are low power (2 watts maximum).

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NOAA Weather Broadcasts

Frequency
162.400
162.425
162.450
162.475
162.500
162.525
162.550
Channel
     2
     4
     5
     3
     6
     7
     1
161.650
161.775
Environment Canada
(marine weather)

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Wireless Microphones

169.445
169.505
170.245
170.305
171.045
171.105
171.845
171.905
Pwr limit 1/20 watt. These freqs are also used for drive-in windows at some restaurants.

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Itinerant Business Frequencies

27.49
35.04
151.505
151.625
158.400
451.800
464.500
464.550

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Low Power Business Frequencies

30.84
33.14
35.02
42.98
43.04
154.570
154.600
467.750
467.775
467.800
467.825
467.850
467.875
467.900
467.925
These low pwr (2 w max.) frequencies are used for many purposes by numerous businesses and organizations. Many fast-food restaurants use these freqs at their drive-in windows. In the 450-470 MHz band, the interstitial (.0125 offset) freqs are also low pwr.

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Comments, corrections and additions are welcomed.
© 2007

Ch. -Freq
60- 156.025
61- 156.075
62- 156.125
63- 156.175
64- 156.225
~~ - ~~~~~~ Ch. -Freq
85- 157.275
86- 157.325
87- 157.375
88- 157.425 Shore stations are 4.600 MHz above the ship frequency. In U.S. waters the shore frequency may be used on Ch. 20, 24-28 & 84-87. Ch. 1-5 & 60-64 are shared with other services. Ch. 75 & 76 are reserved as guard bands for ch 16.

Specific assignments include:                  On-board Communications:
                                               Ch - mobile/repeater
06 (156.300) - Intership Safety                1 - 467.750/457.525
13 (156.650) -  Weather, notes, etc.           2 - 467.775/457.550
16 (156.800) - General Calling                 3 - 467.800/457.575
22 (157.100) - Coast Guard Liaison             4 - 467.825/457.600