11m still hopping with Latin American stations
Earlier I heard some local traffic on channel 1, it sounded like coordinated truckers. I need to check it out more often.
I heard local truckers using channel 6 (!!!) for coordination the other day...this was during a chunk of time where the band was closed though. Usually the locals hang out on channel 4, channel 7, channel 14, channel 22 and channel 33.
Trucking companies and job site coordination on various other channels, including 12, 13, 17, 18, 20, 21, 23, 24, 25, 27, 31, 32, 35 and 36 have all been logged. I heard two truckers talking on channel 17 the other day and they must have been running power because they were very loud for a long time..and one of them was splattering up to channel 19 (27.185 MHz) and down to channel 16 (27.155 MHz) pretty badly. There were points where the guys on 19 had serious interference from splatter due to overmodulation from the super-loud truck driver on channel 17....
CB may be old, but it's still really popular (for obvious reasons)