CB Radio President P channels
The mapping between CB radio channel to President P channel and coded squelch is:
| President P channel | CB channel | Center Frequency (MHz) | coded squelch |
|---|---|---|---|
| 1 | 1 | 26.965 | 94.8 Hz |
| 2 | 3 | 26.985 | D073N |
| 3 | 11 | 27.085 | 131.8 Hz |
| 4 | 18 | 27.175 | D624N |
| 5 | 24 | 27.235 | 203.5 Hz |
Some newer President CB radios have preprogrammed FM mode with CTCSS squelch on “President P channels”:
| Name | Model | FCC ID |
|---|---|---|
| Bill III FCC | TXUS201 | 2AEOCPC210 |
| Johnson III | TXPR767 | |
| Barry II+ | TXPR122 | |
| Taylor IV CL | TXPR423 |
Similar to some OEM FRS / GMRS radios that have preprogrammed channels with CTCSS or DCS codes, the P channels are a convenience that immediately allow users with CB radios having FM and CTCSS to interoperate with each other. We welcome preprogrammed P channel-like features with FM and CTCSS as they are likely to increase usage of FM mode and CTCSS on CB radios. This gives the benefits of maximum range with minimum interference. Before these preprogrammed channels, setting CB radio CTCSS coded squelch involved diving through menus.
Using FM mode with coded squelch experiences much less disturbance from adjacent channel splatter versus the AM mode with signal squelch.