I picked up a portable one years ago. It had a small removable antennae, but it could only pick up signals from a couple hundred yards. I swapped it out for a magnetic roof-top antennae, which has a lot further range. I don't use it often, but occasionally I'll hook it up for a long road trip. I enjoy listening to some of the conversations the big riggers have, but you do
have to be aware that the language can get (shall we say) saucy.
Heard a fellow one time ask for a radio check. When no one answered, he repeated his request. Finally someone came back with "Your radio's workin' fine, but your lips are breaking up"!