Citizens Band

Citizens Band, or CB, is a low-power (maximum 4 W AM or 12 W PEP SSB), unlicensed personal radio service regulated under Part 95 of the FCC rules.

Frequencies

Ch	Frequency	Usage
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	Emergency or traveler's aid only
10	27.075
11	27.085
12	27.105
13	27.115
14	27.125
15	27.135
16	27.155	Has been used as a SSB calling channel in the past 1
17	27.165
18	27.175
19	27.185	Traffic Channel also known as highway/trucker channel
20	27.205
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
31	27.315
32	27.325
33	27.335
34	27.345
35	27.355
36	27.365	SSB communications in the past 1
37	27.375	SSB communications in the past 1
38	27.385	SSB communications in the past 1
39	27.395	SSB communications in the past 1
40	27.405	SSB communications in the past 1

Notes

1 = These channels cannot be received by a scanner. A communications receiver such as a R-75 or R-7000 is required to demodulate these signals

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The CB service is mainly used by professional over the road truck drivers for comunications purposes such as road and travel conditions, along with directions/instructions and road to warehouse communications.

Additionally, CB has become an undisciplined "wasteland" of illegal operation. Most of the general public has moved to FRS or GMRS to avoid the abuse on CB. Many do not consider CB a reliable communications option. CB is rapidly becoming known as "Childrens Band" because of the abuse as well.

See also

• FCC CB Page

• CB frequencies from 47CFR95.625