10/8/2014 CB band frequency chart

http://www.techlib.com/reference/CB.htm 1/2

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

The "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.

Channel 9 is the "emergency channel" indicated by yellow and channel 19 is the commonly used

highway channel indicated by violet.

R/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

10/8/2014 CB band frequency chart

http://www.techlib.com/reference/CB.htm 2/2

on the CB band. Most R/C on this band is for low-power toys, typically operat ing on 27.145 MHz.

Channels 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.

The 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.

Other devices including near-field transmitters share this band and low power narrow-band FM

walkie-talkies share the R/C channels.