Since basic 25 watt VHF radios are inexpensive, wouldn't it be a better idea to have two modestly priced radios....one at nav station and one near/at helm? This way, if the radio itself failed, then there is a back up. One or both of these could have DSC, but the two should be less expensive than some of the fancy remote mike optionsNCC320
Thats an option 2 of course, but then some have limited room or dont wnat the added clutter. Most wired Ram Mikes are pretty cheap actually. If you get a second VHF would you also put a second antanaae on your mast?
The advantage of the wireless for me is that you arent teathered. Kind of like the advatage of a mobile phone in the house. I have a couple handhelds also. One for backup and one for the ditchbag.