I believe they are all similar. Beware of AIS as there are some that receive only & other that receive/transmit.I still need to buy a VHF radio and antenna
Hmm I never thought of that, I might just get it so I can see the vessel name and be able to direct my call if need be.If your going to get a new radio and electronics anyway its nice to have. For receive only you just need a model up on the radio like a Standard Horizon GX2200.
I have receive only and can see commercial and some recreational vessels. It is very nice to have in low visibility and allows you to call a vessel as you know the name of it on the AIS screen.
Plus if its a slow fishing day you can read all the info about a freighter or tug passing by.
If you have radar then the AIS symbol overlays on the radar blob and basically confirms the target. it also shows the direction it is moving. This is the radio I have.Hmm I never thought of that, I might just get it so I can see the vessel name and be able to direct my call if need be.