loorimar

Hi all,

looking to purchase my first radio. I am lookin at the Futaba 7C series. I'll initially be using it
on my boat and at this time do not plan on flying with it anytime soon.
My questions are:

-FM or PCM?
-72 or 75 Mhz? Is there a reason I shouldn't get a 72 Mhz if I plan on ever flying with this radio?
Would anyone care if I use 72 at a lake to drive my boat rather than 75?

Thanks
-Sebastian