CB band frequency chart

	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 on the CB band. Most R/C on this band is for low-power toys, typically operating 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.

CB Radio Frequency Chart