CB Radio Frequency Chart

Channel

Frequency

Typical IF

Channel

Frequency

Typical IF

1

26.965

26.51

R/C

27.195

26.74

2

26.975

26.52

20

27.205

26.75

3

26.985

26.53

21

27.215

26.76

R/C

26.995

26.54

22

27.225

26.77

4

27.005

26.55

23 & R/C

27.255

26.80

5

27.015

26.56

24

27.235

26.78

6

27.025

26.57

25

27.245

26.79

7

27.035

26.58

26

27.265

26.81

R/C

27.045

26.59

27

27.275

26.82

8

27.055

26.60

28

27.285

26.83

9

27.065

26.61

29

27.295

26.84

10

27.075

26.62

30

27.305

26.85

11

27.085

26.63

31

27.315

26.86

R/C

27.095

26.64

32

27.325

26.87

12

27.105

26.65

33

27.335

26.88

13

27.115

26.66

34

27.345

26.89

14

27.125

26.67

35

27.355

26.90

15

27.135

26.68

36

27.365

26.91

R/C

27.145

26.69

37

27.375

26.92

16

27.155

26.70

38

27.385

26.93

17

27.165

26.71

39

27.395

26.94

18

27.175

26.72

40

27.405

26.95

19

27.185

26.73

R/C: radio control

bulletThe "Typical IF" frequency is the frequency that is commonly used with 455 kHz If amplifiers; this frequency is often called the "receive frequency" when referring to crystals.
bulletChannel 9 is the "emergency channel" indicated by yellow and channel 19 is the commonly used highway channel indicated by violet.
bulletR/C indicated frequencies used for radio control and industrial purposes. Channel 23 is shared with R/C but the allowed power for R/C is 25 watts on this one channel (4 watts on the others, like CB).  Most serious R/C is done on other bands due to the significant potential for interference on the CB band. Most R/C on this band is for low-power toys, typically operating on 27.145 MHz.
bulletChannels 13 and 14 are very near 27.12 MHz, a commonly used frequency for high-power industrial devices, as indicated by the dark green. However, these industrial uses have a wide tolerance that includes all the CB channels below channel 28.
bulletThe CB band once consisted of 23 channels with a couple of channels left unused below channel 23. When the band was expanded to 40 channels, the two skipped channels were included as channel 24 and 25 which is why they are lower in frequency than channel 23.
bulletOther devices including near-field transmitters share this band and low power narrow-band FM walkie-talkies share the R/C channels.