well now you get what you pay for remember that. the radio should tell you range the majority of the are about 30 mi unless its a hand held wich is about 4 mi me personaly i like the cobra classic series there are several models that you could choose from .antennas well i like the fiberglass antennas like the fire sticks there strong and they average between 1000- 10000 watts a peice ..for your question on marine cb's no they dont work with land cb's dew to the marine cb runs on a ufh frequence and land on a vhf or somthing like that