SSRF-Lite GitHub ↗

SSRF-Lite reference data

US CB (Citizens Band)

Channel plans · US · Cb · Updated 2026-10-01 · plans/US/cb/cb_channels.yml

CbChannel plan
Browse in the channel tableView YAML on GitHubDownload YAML

Channels

40 assignments, sorted by frequency. Frequency is what your radio receives; input is what it transmits on for repeaters.

Freq (MHz)Input (MHz)ModeTone / CCNameUsageCallsignLocationServiceNotes
26.9650AMAM / USB / LSB / FMCB 01simplexCb
26.9750AMAM / USB / LSB / FMCB 02simplexCb
26.9850AMAM / USB / LSB / FMCB 03simplexCb
27.0050AMAM / USB / LSB / FMCB 04simplexCb
27.0150AMAM / USB / LSB / FMCB 05simplexCb
27.0250AMAM / USB / LSB / FMCB 06simplexCb
27.0350AMAM / USB / LSB / FMCB 07simplexCb
27.0550AMAM / USB / LSB / FMCB 08simplexCb
27.0650AMAM / USB / LSB / FMCB 09 (Emergency)simplexCbEmergency and traveler-assistance use only (47 CFR 95.931(a)(2)).
27.0750AMAM / USB / LSB / FMCB 10simplexCb
27.0850AMAM / USB / LSB / FMCB 11simplexCb
27.1050AMAM / USB / LSB / FMCB 12simplexCb
27.1150AMAM / USB / LSB / FMCB 13simplexCb
27.1250AMAM / USB / LSB / FMCB 14simplexCb
27.1350AMAM / USB / LSB / FMCB 15simplexCb
27.1550AMAM / USB / LSB / FMCB 16simplexCb
27.1650AMAM / USB / LSB / FMCB 17simplexCb
27.1750AMAM / USB / LSB / FMCB 18simplexCb
27.1850AMAM / USB / LSB / FMCB 19 (Highway)simplexCbDe facto highway/trucker calling channel. Convention, not an FCC rule.
27.2050AMAM / USB / LSB / FMCB 20simplexCb
27.2150AMAM / USB / LSB / FMCB 21simplexCb
27.2250AMAM / USB / LSB / FMCB 22simplexCb
27.2350AMAM / USB / LSB / FMCB 24simplexCb
27.2450AMAM / USB / LSB / FMCB 25simplexCb
27.2550AMAM / USB / LSB / FMCB 23simplexCb
27.2650AMAM / USB / LSB / FMCB 26simplexCb
27.2750AMAM / USB / LSB / FMCB 27simplexCb
27.2850AMAM / USB / LSB / FMCB 28simplexCb
27.2950AMAM / USB / LSB / FMCB 29simplexCb
27.3050AMAM / USB / LSB / FMCB 30simplexCb
27.3150AMAM / USB / LSB / FMCB 31simplexCb
27.3250AMAM / USB / LSB / FMCB 32simplexCb
27.3350AMAM / USB / LSB / FMCB 33simplexCb
27.3450AMAM / USB / LSB / FMCB 34simplexCb
27.3550AMAM / USB / LSB / FMCB 35simplexCb
27.3650AMAM / USB / LSB / FMCB 36simplexCbCommonly used for SSB (J3E) operation by convention; not an FCC allocation.
27.3750AMAM / USB / LSB / FMCB 37simplexCbCommonly used for SSB (J3E) operation by convention; not an FCC allocation.
27.3850AMAM / USB / LSB / FMCB 38simplexCbCommonly used for SSB (J3E) operation by convention; not an FCC allocation.
27.3950AMAM / USB / LSB / FMCB 39simplexCbCommonly used for SSB (J3E) operation by convention; not an FCC allocation.
27.4050AMAM / USB / LSB / FMCB 40simplexCbCommonly used for SSB (J3E) operation by convention; not an FCC allocation.

Organizations

Federal Communications Commission (FCC)

org_fcc

Authorization

What it takes to transmit on these channels.

Cb

FCC · Class: Licensed by rule

No individual license required under 47 CFR Part 95, Subpart D (95.305). Power (95.967): AM (A3E) and FM (F3E) mean carrier power <= 4 W; SSB (J3E/R3E/H3E) peak envelope power <= 12 W. Emissions (95.971): A3E or SSB required; F3E permitted since the 2021 amendment (86 FR 53565). SSB sets must offer USB and may add LSB. Bandwidth (95.973): 8 kHz for A3E/F3E, 4 kHz for J3E/R3E/H3E. All four permitted emissions are carried on the channel plan's `emissions` block and apply to every channel. Channel 9 is restricted to emergency and traveler assistance (95.931(a)(2)). External RF power amplifiers are prohibited outright (95.939). Antenna height (95.941): <= 18.3 m (60 ft) AGL, or 6.1 m (20 ft) above the building or tree it is mounted on, whichever is higher. No repeaters. No international contacts except Canadian General Radio Service stations (95.933(d)).

Sources

Where this data came from. Verify on the air before relying on it.