Interactive 40-Channel CB Frequency Guide

BOZO’S CB RADIO PAGE 11-METER REFERENCE

40-Channel CB Frequency Guide

Spin through all 40 U.S. CB channels, check the exact center frequency, and learn what operators commonly use each channel for.

40 FCC channels26.965–27.405 MHzAM / FM / SSBReference, not live traffic

BOZO CB RADIO11 METER • 40 CH

SELECTED CHANNEL

27.025MHz

S+30 dB

RX DEMO · SIMULATED

CH INFO 06

FCC CENTER FREQUENCY • ANIMATED S-METER IS NOT LIVE

CHANNEL SELECTOR

BOZO’S HOME CHANNEL CH 06 • 27.025 MHz

CHANNEL BRIEFCH 06

AM DX / “Super Bowl”

Read complete channel notes

Famous informal AM skip channel, often with intense long-distance chatter. Channel 6 is Bozo’s 27.025 MHz signature. Not exclusive or reserved.

CHANNEL DETAILSBOZO / AM DX

AM DX / “Super Bowl”

Famous informal AM skip channel, often with intense long-distance chatter. Channel 6 is Bozo’s 27.025 MHz signature. Not exclusive or reserved.

Channel6 of 40

Center frequency27.025 MHz

From prior channel number10 kHz higher

TUNE THE BAND

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40 channels

Keyboard tip: focus a channel and use the arrow keys to move. ● Common spot

QUICK TUNE

KNOW YOUR MODES

AM, FM and SSB explained

AMAmplitude Modulation

The traditional CB voice mode. Signal strength varies with the voice waveform; most classic CB conversations use AM.

FCC maximum: 4 W carrier

FMFrequency Modulation

A newer authorized option for U.S. CB. Can sound clearer for stronger local signals; both operators need FM-capable equipment.

FCC maximum: 4 W carrier

SSBSingle Sideband

Efficient voice communication often used for skip. Select matching USB or LSB. Channel 38 LSB is a popular informal calling choice.

FCC maximum: 12 W PEP

10 kHz nominal channel spacing

Channel spacing is usually 10 kHz by channel number, with some 20 kHz jumps. The unusual Channels 22–25 sequence includes a 30 kHz step and a backward step in frequency. The selector reports the difference from the previous channel number.

Rules versus radio tradition

Channel 9 is legally limited to emergencies and traveler assistance. Channels 6, 19 and 38 LSB reflect customary use, not exclusive assignments. Other operators may legally use these shared channels in permitted ways.

View the full 40-channel frequency table

All 40 U.S. CB channel center frequencies and common uses
Channel	MHz	Common use	Notes
1	26.965	Local contacts	Often used for casual local conversations. No exclusive assignment.
2	26.975	General CB contacts	Available for regular conversation and local groups.
3	26.985	General CB contacts	A typical shared voice channel; check local activity.
4	27.005	Off-road / club groups	Some 4×4 groups use Channel 4 by informal agreement. Not reserved for them.
5	27.015	General CB contacts	Shared local voice traffic.
6	27.025	AM DX / “Super Bowl”	Famous informal AM skip channel, often with intense long-distance chatter. Channel 6 is Bozo’s 27.025 MHz signature. Not exclusive or reserved.
7	27.035	General CB contacts	Shared local voice traffic.
8	27.055	General / road groups	Some road groups use this channel informally; use differs by location.
9	27.065	Emergency / traveler assistance ONLY	FCC-restricted: use only for emergencies or traveler assistance. Give emergencies priority on every channel.
10	27.075	Regional road traffic	Sometimes used by truckers or local drivers. Not a nationally reserved calling channel.
11	27.085	Local / traditional calling	Historically treated as a calling channel in some communities, but there is no nationwide reservation.
12	27.105	General CB contacts	Shared local voice traffic.
13	27.115	RV / recreation groups	Sometimes used by RV or recreational groups. Not a marine distress or dedicated safety channel.
14	27.125	Handheld / local chatter	Historically popular for short-range handheld CB activity. Not reserved.
15	27.135	General CB contacts	Shared local voice traffic.
16	27.155	Traditional SSB activity	Some operators use Channel 16 for sideband conversations by convention. Match USB or LSB with the other station.
17	27.165	Regional truck / road traffic	Informally used for highway traffic in some areas; practice varies.
18	27.175	General CB contacts	Shared local voice traffic.
19	27.185	Highway / trucker calling	Widely recognized U.S. road-information channel. Busy locally, but not legally exclusive to truckers.
20	27.205	Local contacts	Used for casual conversations and local groups.
21	27.215	Regional road / convoy groups	Some drivers and groups use Channel 21 by convention, depending on location.
22	27.225	General CB contacts	Shared channel immediately below the unusual 23–25 frequency numbering sequence.
23	27.255	General CB contacts	27.255 MHz: note this is HIGHER than Channels 24 and 25 in frequency. The channel numbering is historical.
24	27.235	General CB contacts	27.235 MHz: LOWER in frequency than Channel 23. Do not assume numeric channel order is strictly frequency order.
25	27.245	General CB contacts	27.245 MHz: between Channel 24 (27.235) and Channel 23 (27.255) in frequency.
26	27.265	General CB contacts	Available for AM, FM or SSB using a suitable FCC-compliant radio.
27	27.275	General CB contacts	Shared local voice traffic.
28	27.285	AM DX / local contacts	Known among some operators for informal AM long-distance contacts. Not reserved for DX.
29	27.295	General CB contacts	Shared local voice traffic.
30	27.305	General CB contacts	Shared local voice traffic.
31	27.315	General CB contacts	Shared local voice traffic.
32	27.325	General CB contacts	Shared local voice traffic.
33	27.335	General CB contacts	Shared local voice traffic.
34	27.345	General CB contacts	Shared local voice traffic.
35	27.355	General / occasional SSB	SSB operators may be heard here; no mode is assigned exclusively to the channel.
36	27.365	Common SSB activity	Often used for sideband contacts by convention, although AM and FM are also permitted.
37	27.375	Common SSB activity	Often used for sideband conversations; agree on USB or LSB.
38	27.385	LSB calling / SSB DX	Channel 38 LSB is a well-known informal U.S. SSB calling spot. Make contact, then consider moving to another channel for a longer QSO.
39	27.395	SSB conversations / DX	Common informal follow-up channel for sideband contacts after calling on 38 LSB.
40	27.405	SSB conversations / DX	Uppermost standard U.S. CB channel. Often used for sideband conversations by convention.