I'm thinking about getting one. Will it interfere with a CB if I ran them both at the same time?
Absolutely. You can’t use more than one radio service at a time. That’s why no-one has more than one radio in their rig... and uninstalls the factory radio when they install a CB.
I’m joking... CB is a long way from GMRS frequencies... CB transmits around 26MHz and GMRS is in 450 MHz. You will be fine running it with the CB... you might also look into getting your ham license so you can have all three.
