A Marine VHF radio is a must for ships and vessels of all sizes. A VHF radio is a type of communication device which has trans-receiving capabilities and can help in getting rescue services in case of trouble in the sea. As the name suggests, a Marine VHF use radio waves for communication, typically in the range of 156 to 174 MHz.
Most VHF units which are available in the market today can operate in different channels. There are some basic channels and frequencies which are a standard worldwide like the 156.8 MHz channel which is the distress channel. Marine VHF radios feature a display panel and weather alert functionality. Some of them also have wrist bands which will help in gripping when the vessel is tossing about in the sea. They can also be charged in any standard plug-point.
Some VHF radio units also offer some extra functionality like dual power mode and there are some devices that also announce weather and climatic changes in advance. Other standard accessories of a typical marine radio include items like a belt clip, adapter for charging and charging cradles.
When you are looking to buy a VHF radio unit, choose one that has a bright illuminated display and can be used to hear and talk clearly even in rough weather conditions. Other factors that you might want to consider before buying one would be if it comes with a waterproof cover and sealant and can be submersed without damaging the device. The casing of the marine VHF should be rugged and must withstand rough use, because out in the sea, there are more chances of the device getting dropped or falling down. The most important thing that you need to consider will be however if device supports all the standard channels in the country where you live.