Telephone Frequencies
Cellular Telephone
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.
Cordless Telephone
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.
900Mhz Cordless Phones
| Panasonic KX-T9000 | base 902.100-903.870 handset 926.100-927.870 |
60 channels 30 kHz spacing |
| VTech Tropez 900DX | base 905.600-907.500 handset 925.500-927.400 |
20 channels (digital) 100 kHz spacing |
| AT&T #9120 | 902.0-905.0 925.0-928.0 |
|
| OTRON CORP. #CP-1000 | 902.1-903.9 926.1-927.9 |
unconfirmed |
| SAMSUNG #SP-R912 | 903.0 927.0 |
Mobile Telephone
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.
Air to Ground Telephone
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.
800Mhz Air to Ground Telephone
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.