I live in a port town. For my entire life I have driven past a marine electronics store. Not needing "marine" electronics (radar, sonar, gps and its predecessor LORAN, and of course radios). I never had a need to visit. But as it turns out the store carries all sorts of GMTS, FRS and HAM equipment. And not just for boats.
i called yesterday and found out that not only do they have probably everything you find all your needs met in one place. Plus and more importantly, they are more than to share decades of knowledge and experience.
Heading down tomorrow with a list of needfuls and more importantly a list of questions.