Hey guys, I have been trying to get the basics in on the rig since I have been back which has proven to be a mission. Mostly because the time not consumed by work is done by the baby. But anyway I finally got my CB radio / speaker installed as well as the PA for fun. I went with the firestik tunable antenna as most have and need to get myself a SWR meter, is there any difference in these things? Can I get away with buying the cheapest one on amazon or do I need something specific ?