Though some older radios still function without digital selective calling (DSC), this functionality is required by federal law on new fixed-mount radios ... Shop for more VHF Radios here How do these ...

How can I make use of the hail function on my VHF ... radio. Run the cable to a marine loudhailer speaker/horn such as the Standard Horizon 240 SW ($45, westmarine.com), which can be mounted in a ...