Small ship but a big responsibility...
Jeremy, I wish you had told us what waters you sail in & how much, as it would helped to shape the replies. First, your dilemma is that you operate a small ship but have big ship responsibilities re: communication. If e.g. you daysailed out of Ft. Lauderdale, Miami, Norfolk, Long Beach, San Diego or a hundred other coastal ports with a broad mix of commercial traffic plus other recreational craft, you really can't exercise good seamanship re: commos unless you are capable of monitoring and replying on at least one, perhaps 3 VHF channels. It's to your credit that you already appreciate this basic truth and are asking how to improve things.Secondly, because you will want to concurrently monitor 2 or more channels on occasion, your cockpit radio needs to have that feature. Most handhelds do, some cheap ones do not.Now we get to the issue of handhelds and their batteries. I think there are several significant compromises in relying on a handheld but the one that troubles me the most is battery performance. Most sailors I ask who regularly use h/h units in their cockpits rely on the stock NiCad battery and stock base charger. (If they have and have populated the optional alkaline battery case, it's often not readily to hand. And if the h/h unit is reputed to be watertight, you will need a tool and some time to exchange the battery cases...if you recognize that unit has shut off due to battery exhaustion). The nature of a NiCad battery is abrupt exhaustion; it will show decent capacity and only some minutes later fail completely and need to be recharged. H/h units do not announce this and you can believe you are standing a radio watch when of course you aren't. NiCad capacity is fine for an afternoon sail but usually w-a-y inadequate for an extended day's passage. (I notice the hi-end Icom unit promises 8 hrs of endurance). So...h/h units are very popular and offer redundancy over a RAM type extension but suffer from limited battery life and a number of other weaknesses (usually poor amplification in a working cockpit environment, potential for loss or damage, poor emergency comms device when working a shoreside facility and needing to work the boat, and more).It's tough to get all the capability, redundancy and reliability you need without spending more than is justifiable, but I'd encourage you to think about your local waters and the kind of sailing you do, and then make a choice that offers the best compromise for meeting your needs. For me, if I sailed in SD Bay, Norfolk or out of Miami in a small ship, I would probably opt for the RAM mike (and I have and use ALL of the radio options mentioned in this thread). The base unit will be protected and reliable, the RAM mike offers maximum utility & features in the cockpit at a full 25W transmit power, and I can pick between multiple brands to take advantage of sales. Of course, this is a significant purchase if I already have a working VHF. It never seems to be easy...Jack