Go ham and don't look back.
I was actually just
reading this trip report again from several years ago. As of today almost everyone in the club has a ham radio. So much mo' betta:
But if you must stick with a CB (I still have a Uniden 510 in my 40 because there are still folks out there who run CB), make sure it's tuned ok with an SWR meter. I have one you could borrow if you'd like. You should be able to get a couple miles out of it (ham can easily hit 40 miles, even without a repeater).