Agree with Genesee.
Marine band VHF is the way to go, problem is it's not a common vehicular purchase.
With DSC enabled Marine Band VHF by the way, you can attach it to a DSC enabled GPS chartplotter and then be able to track your position as well as all your buddies positions on your chartplotter. Garmin's chartplotter GPS's all are DSC enabled.
Also has an emergency rescue feature that broadcasts your GPS coordinates to all other DSC enabled VHF units and emergency responders.
Then all you need to do is hit the GOTO button on your chartplotter and it plots a course to your position.
If you want really great distance though, Single Side Band...
BSEEAugs
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