My first CB was a 6 channel Johnson .
Late 70's I had a Courier 23 channel with another 46 channels added on using a 500 watt kicker.
I had 6' heavy duty antennas that I had to swap out because of low bridges coming into Milwaukee..
I used to talk to guys fishing in the Gulf of Mexico and a few guys in Cuba on occasion.
I still have a 23 channel Cobra sideband radio I bought new in 1974.