July 1997 |
F.A.F. - Frequently Asked Frequencies
-----------------------------------------
For an overview of the FCC allocations for the 30 - 1400 MHz
range, see the file {FTP} fcc.allocations {CIS} FCCTBL.TXT
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Cellular Telephone [22.902]
Chs Freqs (base) System Use
991-1023 869.040 - 870.000 A - RCC voice
1-312 870.030 - 879.360 A - RCC voice
313-333 879.390 - 879.990 A - RCC data
334-354 880.020 - 880.620 B - Telco data
355-666 880.650 - 889.980 B - Telco voice
667-716 890.010 - 891.480 A - RCC voice
717-799 891.510 - 893.970 B - Telco voice
Transmissions are FM (some systems are adding digital). |
Channels are 30 kHz apart. Mobiles transmit 45 MHz below the
base (824.040-848.970) and are usually repeated by the base.
Channels 991-1023 are also identified as Chs 800-832.
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Cordless Telephone [15.233]
Chan Base Handset Chan Base Handset
1 43.72 48.76 16 46.61 49.67
2 43.74 48.84 17 B 46.63 49.845
3 43.82 48.86 18 C 46.67 49.86
4 43.84 48.92 19 46.71 49.77
5 43.92 49.02 20 D 46.73 49.875
6 43.96 49.08 21 A 46.77 49.83
7 44.12 49.10 22 E 46.83 49.89
8 44.16 49.16 23 46.87 49.93
9 44.18 49.20 24 46.93 49.99
10 44.20 49.24 25 46.97 49.97
11 44.32 49.28
12 44.36 49.36 Chs A - E handset frequencies
13 44.40 49.40 are also used for baby room
14 44.46 49.46 monitors and low power
15 44.48 49.50 handie-talkies.
The original 10 channels were renumbered 16-25 in June 95 |
when the new channels 1-15 were added. |
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Mobile Telephone [22.501]
VHF - 30 kHz spacing UHF - 25 kHz spacing
Base: 152.030 - 152.210 RCC 454.025 - 454.350 RCC
152.510 - 152.810 telco 454.375 - 454.650 telco
Mobile: 157.770 - 158.070 telco 459.025 - 459.350 RCC
158.490 - 158.670 RCC 459.375 - 459.650 telco
Transmissions are FM. Many of these channels may now be used
for paging, specifically 152.78, which is a nationwide page.
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Air to Ground Telephone [22.521]
Ch Ground Airborne
Signaling 454.675 (459.675)
6 454.700 459.700
7 454.725 459.725
5 454.750 459.750
8 454.775 459.775
4 454.800 459.800
9 454.825 459.825
3 454.850 459.850
10 454.875 459.875
2 454.900 459.900
11 454.925 459.925
1 454.950 459.950
12 454.975 459.975
Transmissions are FM. Ground stations repeat the airborne
half of the conversation, and transmit a continuous tone when
idle. From one to four channels are assigned in a particular
area.
Service is used on private aircraft.
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800 MHz Air to Ground Telephone [22.1107]
- - Airborne - -
Blk Ch 1 - Ch 29
10 894.0055 - 894.1735
9 894.2055 - 894.3735
8 894.4055 - 894.5735 Guard Band -
7 894.6055 - 894.7735 .x765-.x797
6 894.8055 - 894.9735
5 895.0055 - 895.1735 Control Channels -
4 895.2055 - 895.3735 .x813-.x973
3 895.4055 - 895.5735
2 895.6055 - 895.7735
1 895.8055 - 895.9735
Transmissions are AM (or AM/SSB), and converting to digital.
Channels are spaced 6 kHz apart. A specific block of 29 channels
is assigned to each geographical area. Ground frequencies 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 [73.603]
Ch Range Video Audio
2 54 - 60 55.250 59.750
3 60 - 66 61.250 65.750
4 66 - 72 67.250 71.750
5 76 - 82 77.250 81.750
6 82 - 88 83.250 87.750
7 174 - 180 175.250 179.750
8 180 - 186 181.250 185.750
9 186 - 192 187.250 191.750
10 192 - 198 193.250 197.750
11 198 - 204 199.250 203.750
12 204 - 210 205.250 209.750
13 210 - 216 211.250 215.750
14 470 - 476 471.250 475.750 } |
15 476 - 482 477.250 481.750 } Range for Ch. N |
.. ... - ... ....... ....... } Low = 386 + 6*N |
68 794 - 800 795.250 799.750 } High = 392 + 6*N |
69 800 - 806 801.250 805.750 } |
Note the gaps between chs 4/5, 6/7, and 13/14.
Freqs in the 470-512 MHz range (Ch 14-20) may be assigned to
Public Service mobile use in major metro areas. No transmitters
are allowed on 608-614 MHz (Ch 37).
Each TV channel is 6 MHz wide. The video carrier is 1.25 MHz
above the start of the range. The audio carrier is 0.25 MHz below
the end of the range. Television audio is wideband FM.
Some TV stations may be offset +/- 10 kHz.
Cable TV (IRC) [76.605]
[EIA IS-132]
Ch MHz
2 - 13 54 - 216 (same as broadcast VHF)
14 - 22 120 - 174 Mid band Ch. A-I
23 - 36 216 - 300 Super band J-W
37 - 53 300 - 402 Hyper band AA-QQ
54 - 64 402 - 468 " "
65 - 94 468 - 648 (Ultra band)
95 - 99 90 - 120 Low band A5-A1
100 -125 648 - 804 (Ultra band)
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Citizens Band [95.625]
Ch Freq Ch Freq Ch Freq Ch Freq
1 26.965 11 27.085 21 27.215 31 27.315
2 26.975 12 27.105 * 22 27.225 32 27.325
3 26.985 13 27.115 23 27.255 - 33 27.335
4 27.005 * 14 27.125 24 27.235 - 34 27.345
5 27.015 15 27.135 25 27.245 - 35 27.355
6 27.025 16 27.155 * 26 27.265 36 27.365
7 27.035 17 27.165 27 27.275 37 27.375
8 27.055 * 18 27.175 28 27.285 38 27.385
9 27.065 19 27.185 29 27.295 39 27.395
10 27.075 20 27.205 * 30 27.305 40 27.405
* 26.995, 27.045, 27.095, 27.145, 27.195 => Remote Control
- note break in sequence (27.255 shared with R/C)
Modulation is primarily AM, with some SSB in use.
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FRS - Family Radio Service [95.627]
Ch Freq Ch Freq
1 462.5625 8 467.5625
2 462.5875 9 467.5875
3 462.6125 10 467.6125
4 462.6375 11 467.6375
5 462.6625 12 467.6625
6 462.6875 13 467.6875
7 462.7125 14 467.7125
The FRS was authorized on 06 June 96. It uses FM with a peak |
deviation of +/- 2.5 kHz. Maximum power is 0.5w ERP. |
Channels 1 - 7 are shared with GMRS.
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GMRS - General Mobile Radio Service [95.29 ]
[95.621]
Base/mobile repeater I/P
462.5500 467.5500
462.5625
462.5750 467.5750
462.5875
462.6000 467.6000
462.6125
462.6250 467.6250
462.6375
462.6500 467.6500
462.6625
462.6750 467.6750
462.6875
462.7000 467.7000
462.7125
462.7250 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. They are
shared with the Family Radio Service.
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Railroads [90.91 ]
Ch Freq
2 159.810
3 159.930 The channel designation is that
4 160.050 assigned by the Association of
5 160.185 American Railroads. Chs 2 thru 6
6 160.200 are used only in Canada.
7 160.215 Above channel 6, spacing is 15 kz.
8 160.230
.. .......
96 161.550
97 161.565
452.325 452.775 Shared with trucking. |
452.375 452.825 Mobiles 5 MHz higher. |
452.425 452.875 |
452.475 452.900 |
452.925 Slave & remote-controlled |
452.950 locomotives |
457.9375 ETM - End of Train Monitors |
161.115 Norfolk-Southern ETMs |
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Marine VHF [80.871]
[80.373]
Ch Ship Ch Ship
60 156.025
1 156.050 61 156.075
2 156.100 62 156.125
3 156.150 63 156.175
4 156.200 64 156.225
.. ....... .. .......
25 157.250 85 157.275
26 157.300 86 157.325
27 157.350 87 157.375
28 157.400 88 157.425
Shore stations are 4.600 MHz above the ship frequency. In
U.S. waters the shore frequency may be used on Chs 20, 24-28 &
84-87. Chs 1-5 & 60-64 are shared with other services. Chs 75
& 76 are reserved as guard bands for ch 16.
Specific assignments include:
06 156.300 Intership Safety
09 156.450 General use by recreational vessels
13 156.650 Bridge-to-Bridge
15 156.750 Weather, notices, etc
16 156.800 General Calling / Distress
22 157.100 Coast Guard Liaison
AMTS - Automated Maritime Telecommunications System [80.385]
Transmit frequencies (@ 25 kHz intervals)
Group Chs Coast Ship
D 101-120 216.0125 - 216.4875 - - - - - -
C 121-140 216.5125 - 216.9875 - - - - - -
B 141-160 217.0125 - 217.4875 219.0125 - 219.4875
A 161-180 217.5125 - 217.9875 219.5125 - 219.9875
Ship transmit frequencies in groups C & D are not authorized.
Coastal stations in groups C & D are not currently assignable.
On-board Communications: [80.373]
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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Aeronautical Frequencies [87.173]
108.000 - 117.950 NavAids - VOR & localizer, 50 kHz step
118.000 - 121.400 ATC - towers & ARTCC
121.600 - 121.925 ATC - airport ground control
122.000 - 122.650 Flight Service Stations, 50 kHz step
122.700 - 123.500 * (see below)
123.600 - 128.800 ATC - towers & ARTCC
128.825 - 132.000 Enroute - airline company freqs
132.025 - 135.975 ATC - towers & ARTCC
136.000 - 136.475 Enroute - international
136.500 - 136.975 Enroute - domestic & international
25 kHz default spacing, AM for voice
UNICOM - Aeronautical advisory station at airport [87.217]
122.700 122.725
122.800 123.000
122.950 at airport w/ full-time tower
122.975 above 10,000'
123.050 123.075 at heliports
Multicom - common freq. at uncontrolled facilities [87.241]
122.850
122.900 primary CTAF
122.925 Fed/State natural resources
FSS - FAA Flight Service Stations [87.187]
122.000 122.050 EFAS "Flight Watch"
122.100 receive only (w/VOR)
122.200 standard FSS
123.600 123.650 AAS Airport Advisory Svc
Aviation Support - training, gliders, ballons, etc [87.323]
121.950
123.300 123.500
122.775 122.850 aviation services
Misc.
121.500 standard emergency freq., ELTs
123.100 Search And Rescue - actual
122.900 Search And Rescue - training
123.100 control tower at special events
122.825 122.875 Enroute airline ops - local area
122.750 air-to-air - private arcft
123.025 air-to-air - helicopter
131.550 ACARS - digital (airlines)
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Ambulances [90.27 ]
Hospital Ambulance
Med-9 462.950 467.950 Med-9 and Med-10 may be
Med-10 462.975 467.975 used for dispatch.
Med-1 463.000 468.000
Med-2 463.025 468.025
Med-3 463.050 468.050 Med-1 thru Med-8 are
Med-4 463.075 468.075 assigned as a block and
Med-5 463.100 468.100 any channel may be used.
Med-6 463.125 468.125
Med-7 463.150 468.150
Med-8 463.175 468.175
HEAR 155.340 Intersystem (Hosp. Emerg. Ambul. Radio)
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Public Safety Intersystem
Police [90.19]
39.46 intersystem operations only
45.86 intersystem operations only
155.370 (widely used, but not a Federal allocation)
155.475 statewide emergency nets
173.075 stolen vehicle recovery (LoJack)
154.665 .680 .695 } State Police
154.905 .920 .935 } coordinated
155.445 .460 .490 } operations
Fire [90.21]
45.88 intersystem, primarily base-mobile
154.265 .280 .295 mutual aid
Emergency Medical [90.27]
155.340 HEAR - Hospital Emerg. Ambul. Radio
460.525 .550 inter/intrasystem w/ Police & Fire
(also see FAF-Ambulances for MED channels)
Public Safety - all
220.8025-220.8475 Mutual Aid (5 kHz intervals) [90.720]
866.0125 .5125 }
867.0125 .5125 } Mutual Aid [90.617]
868.0125 }
(mobile freqs: 220 +1 MHz; 460 +5 MHz; 860 -45 MHz)
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Weather - NOAA broadcasts
Ch Freq.
1 162.550 161.650 } Environment Canada
2 162.400 161.775 } (marine weather)
3 162.475
4 162.425
5 162.450 The weather alert signal is |
6 162.500 a 1050 kHz tone for ~5 secs. |
7 162.525
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Broadcast Remote Pickup [74.401]
25.87 - 26.45 @ 20/40 kHz intervals
152.87 - 153.35 @ 60 kHz intervals
161.64 - 161.76 @ 30 kHz intervals
450.050 - 450.850 } @ 50/100 kHz
455.050 - 455.850 } intervals
Film and Video Production [90.69 ]
152.87 152.90 152.93 152.96 152.99 153.02
173.225 173.275 173.325 173.375
Wireless mikes [90.265]
169.445 169.505 170.245 170.305
171.045 171.105 171.845 171.905
plus unused FM/TV broadcast channels [74.802]
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Dot Frequencies
Dot color Other
Red 151.625 itinerant "J" Dot 467.7625
Purple 151.955 "K" Dot 467.8125
Blue 154.570 Silver Star 467.850
Green 154.600 Gold Star 467.875
White 462.575 GMRS Red Star 467.900
Black 462.625 GMRS Blue Star 467.925
Orange 462.675 GMRS
Brown 464.500 itinerant
Yellow 464.550 itinerant
"Dot" stickers are used by the manufacturer or distributer to
indicate the frequency of otherwise identical transceivers. They
are often found in rental inventories and on construction sites.
Additional itinerant frequencies include 27.49, 35.04, 43.04,
151.505, 158.400, 469.500 and 469.550 MHz.
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Paired Frequencies |
|
Base/Rptr mobile i/p offset |
|
152-152 MHz 157-158 MHz +5.26 MHz (Taxi) |
+5.26/+6.46 (Mobile Phone) |
160-162 156-157 -4.6 (Marine VHF) |
217-218 219-220 +2 (Marine AMTS) |
220-221 221-222 +1 |
422-425 427-430 +5 (Great Lakes border) |
450-465 455-470 +5 (10 MHz segments) |
470-509 473-512 +3 (6 MHz segments) |
851-896 806-851 -45 |
935-940 896-901 -39 |
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CTCSS (PL) Frequencies
Freq Designator Freq Designator Freq Designator
(Hz) EIA Ham (Hz) EIA Ham (Hz) EIA Ham
67.0 L1 01 110.9 2Z 15 179.9 6B 29
71.9 L2 02 114.8 2A 16 186.2 7Z 30
74.4 WA 03 118.8 2B 17 192.8 7A 31
77.0 L3 04 123.0 3Z 18 203.5 M1 32
79.7 SP 05 127.3 3A 19 206.5 8Z
82.5 L4 06 131.8 3B 20 210.7 M2 33
85.4 YA 07 136.5 4Z 21 218.1 M3 34
88.5 L4A 08 141.3 4A 22 225.7 M4 35
91.5 ZZ 09 146.2 4B 23 229.1 9Z
94.8 L5 10 151.4 5Z 24 233.6 M5 36
97.4 ZB 11 156.7 5A 25 241.8 M6 37
100.0 1Z 12 162.2 5B 26 250.3 M7 38
103.5 1A 13 167.9 6Z 27 254.1 OZ
107.2 1B 14 173.8 6A 28
Motorola differs from EIA with: XZ (L1), XA (L2), XB (L3),
YZ (L4), YB (L4A), ZA (L5). ICOMM does not use 97.4 and uses one
less than the amateur numbers above that (i.e. ICOM #25 = 162.2).
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