CB

From HFUnderground

High-HF (26-28 MHz) short-range radio service designed for personal or business use by the general public. Generally license free worldwide, although frequency allocations, modes and power limits vary from country to country. However, these limits are often ignored and enforcement is extremely lax.

Many countries follow the US 40-channel plan, with most of Europe allowing for use of FM on these frequencies in addition to AM. SSB is legal in some parts of the world, in others only AM/FM or even just FM are allowed. The US CB frequency plan has been standardized Europe-wise as the "CEPT" band (or "mid band") in FM mode. Some countries (Germany, Czech Republic, Russia, the UK, New Zealand etc) have additional channels authorized in addition to the standard 26.965-27.405 MHz US FCC/CEPT "mid band" allocation. Other countries have entirely different allocations or use only a portion of the US FCC/CEPT mid band channel plan. See charts below for CB channel plans.

See also freebanding.

Contents [hide] 1 US "FCC" "CEPT" or "mid band" CB Frequencies 2 UK CB "27/81" Frequencies 3 German/Czech "Auxiliary" channels 41-80 (in addition to US channels 1-40) 4 New Zealand "CBL" and "CBH" channels 5 Russian CB Channel Frequencies 6 Japan

US "FCC" "CEPT" or "mid band" CB Frequencies

AM and SSB Modulation

CB Channel	Frequency
Channel 1	26.965 MHz
Channel 2	26.975 MHz
Channel 3	26.985 MHz
Channel 4	27.005 MHz
Channel 5	27.015 MHz
Channel 6	27.025 MHz
Channel 7	27.035 MHz
Channel 8	27.055 MHz
Channel 9	27.065 MHz
Channel 10	27.075 MHz
Channel 11	27.085 MHz
Channel 12	27.105 MHz
Channel 13	27.115 MHz
Channel 14	27.125 MHz
Channel 15	27.135 MHz
Channel 16	27.155 MHz
Channel 17	27.165 MHz
Channel 18	27.175 MHz
Channel 19	27.185 MHz
Channel 20	27.205 MHz
Channel 21	27.215 MHz
Channel 22	27.225 MHz
Channel 23	27.255 MHz
Channel 24	27.235 MHz
Channel 25	27.245 MHz
Channel 26	27.265 MHz
Channel 27	27.275 MHz
Channel 28	27.285 MHz
Channel 29	27.295 MHz
Channel 30	27.305 MHz
Channel 31	27.315 MHz
Channel 32	27.325 MHz
Channel 33	27.335 MHz
Channel 34	27.345 MHz
Channel 35	27.355 MHz
Channel 36	27.365 MHz
Channel 37	27.375 MHz
Channel 38	27.385 MHz
Channel 39	27.395 MHz
Channel 40	27.405 MHz

UK CB "27/81" Frequencies

FM (Frequency Modulation)

The UK allows use of the CEPT "mid band" allocation (same as US frequencies) in addition to the frequencies listed below. AM, FM and SSB are allowed on 26.965-27.405 MHz. FM is the only mode allowed on 27.60125-27.99125 MHz. In the UK, these frequencies are shared with the Community Audio Distribution Service (CADS) and the Republic of Ireland's Wireless Public Address System (WPAS).

CB Channel	Frequency
Channel 1	27.60125 MHz
Channel 2	27.61125 MHz
Channel 3	27.62125 MHz
Channel 4	27.63125 MHz
Channel 5	27.64125 MHz
Channel 6	27.65125 MHz
Channel 7	27.66125 MHz
Channel 8	27.67125 MHz
Channel 9	27.68125 MHz
Channel 10	27.69125 MHz
Channel 11	27.70125 MHz
Channel 12	27.71125 MHz
Channel 13	27.72125 MHz
Channel 14	27.73125 MHz
Channel 15	27.74125 MHz
Channel 16	27.75125 MHz
Channel 17	27.76125 MHz
Channel 18	27.77125 MHz
Channel 19	27.78125 MHz
Channel 20	27.79125 MHz
Channel 21	27.80125 MHz
Channel 22	27.81125 MHz
Channel 23	27.82125 MHz
Channel 24	27.83125 MHz
Channel 25	27.84125 MHz
Channel 26	27.85125 MHz
Channel 27	27.86125 MHz
Channel 28	27.87125 MHz
Channel 29	27.88125 MHz
Channel 30	27.89125 MHz
Channel 31	27.90125 MHz
Channel 32	27.91125 MHz
Channel 33	27.92125 MHz
Channel 34	27.93125 MHz
Channel 35	27.94125 MHz
Channel 36	27.95125 MHz
Channel 37	27.96125 MHz
Channel 38	27.97125 MHz
Channel 39	27.98125 MHz
Channel 40	27.99125 MHz

German/Czech "Auxiliary" channels 41-80 (in addition to US channels 1-40)

FM modulation only. Digital modes allowed on specified channels.

CB Channel	Frequency
Channel 41	26.565 MHz
Channel 42	26.575 MHz
Channel 43	26.585 MHz
Channel 44	26.595 MHz
Channel 45	26.605 MHz
Channel 46	26.615 MHz
Channel 47	26.625 MHz
Channel 48	26.635 MHz
Channel 49	26.645 MHz
Channel 50	26.655 MHz
Channel 51	26.665 MHz
Channel 52	26.675 MHz
Channel 53	26.685 MHz
Channel 54	26.695 MHz
Channel 55	26.705 MHz
Channel 56	26.715 MHz
Channel 57	26.725 MHz
Channel 58	26.735 MHz
Channel 59	26.745 MHz
Channel 60	26.755 MHz
Channel 61	26.765 MHz
Channel 62	26.775 MHz
Channel 63	26.785 MHz
Channel 64	26.795 MHz
Channel 65	26.805 MHz
Channel 66	26.815 MHz
Channel 67	26.825 MHz
Channel 68	26.835 MHz
Channel 69	26.845 MHz
Channel 70	26.855 MHz
Channel 71	26.865 MHz
Channel 72	26.875 MHz
Channel 73	26.885 MHz
Channel 74	26.895 MHz
Channel 75	26.905 MHz
Channel 76	26.915 MHz
Channel 77	26.925 MHz
Channel 78	26.935 MHz
Channel 79	26.945 MHz
Channel 80	26.955 MHz

New Zealand "CBL" and "CBH" channels

AM and SSB modulation. The CBH channels are the same as the US channels

CB Channel	Frequency
Channel 1	26.330 MHz
Channel 2	26.340 MHz
Channel 3	26.350 MHz
Channel 4	26.370 MHz
Channel 5	26.380 MHz
Channel 6	26.390 MHz
Channel 7	26.400 MHz
Channel 8	26.420 MHz
Channel 9	26.430 MHz
Channel 10	26.440 MHz
Channel 11	26.450 MHz
Channel 12	26.470 MHz
Channel 13	26.480 MHz
Channel 14	26.490 MHz
Channel 15	26.500 MHz
Channel 16	26.520 MHz
Channel 17	26.530 MHz
Channel 18	26.540 MHz
Channel 19	26.550 MHz
Channel 20	26.570 MHz
Channel 21	26.580 MHz
Channel 22	26.590 MHz
Channel 23	26.620 MHz
Channel 24	26.600 MHz
Channel 25	26.610 MHz
Channel 26	26.630 MHz
Channel 27	26.640 MHz
Channel 28	26.650 MHz
Channel 29	26.660 MHz
Channel 30	26.670 MHz
Channel 31	26.680 MHz
Channel 32	26.690 MHz
Channel 33	26.700 MHz
Channel 34	26.710 MHz
Channel 35	26.720 MHz
Channel 36	26.730 MHz
Channel 37	26.740 MHz
Channel 38	26.750 MHz
Channel 39	26.760 MHz
Channel 40	26.770 MHz

Russian CB Channel Frequencies

Russia as two sets of 120 channels for a total of 240 channels. Unlike most countries, Russia has 5 kHz channel steps. Frequency coverage is 26.510 MHz to 27.855 MHz.

AM and FM modulation. Channels are referred using an alphanumeric designation that provides the band, channel number, and "raster" (last digit of frequency, 5 or 0) plus the mode. Most radios used in Russia use the band letter + channel number format to display channels, and/or include a frequency display due to the complexity of the system. The "E" channels are more commonly used in Russia compared to the older-generation "R" channels (original Russian/Polish/Eastern European CB channel plan).

Bands are as follows:

C band: 26.515-26.955 MHz (E raster) 26.510-26.950 MHz (R raster) D band: 26.965-27.405 MHz (E raster) 26.960-27.400 MHz (R raster) E band: 27.415-27.855 MHz (E raster) 27.410-27.850 MHz (R raster) + channel number + mode (AM or FM, often written as "A" or "F")

For example, 27.185 MHz FM is designated

D19EF (band D, channel 19, E raster/channeling, FM mode)

Table of channels omitted due to sheer number of channels available. Modern CB radios sold in Europe and Asia often include "RU" mode as a country setting. More often than not, this opens up the radio to 25.615 MHz to 30.105 MHz in 5/10 kHz steps AM/FM mode. Russia suffers from heavy interference on the 10 meter amateur radio band due to the high number of radios operating above and below the legal CB frequencies and nil enforcement on the behalf of Russian authorities.

Japan

AM modulation only. 0.5 watt (500mw) power limit.

CB Channel	Frequency
Channel 1	26.968 MHz
Channel 2	26.976 MHz
Channel 3	27.040 MHz
Channel 4	27.080 MHz
Channel 5	27.088 MHz
Channel 6	27.112 MHz
Channel 7	27.120 MHz
Channel 8	27.144 MHz