Marine Two-Way Radios

Choose based on range needs (VHF for open-water communication and DSC for distress signaling), waterproof rating (IPX7 or higher for immersion), power output (1–25W; higher for longer range), battery life, and whether you need features like DSC, GPS, or AIS integration

Essential safety features include VHF channel 16 monitoring, DSC (Digital Selective Calling) for distress alerts, an MMSI-programmable radio or connection to a DSC-capable station, and sufficient waterproofing and buoyancy for maritime use

Handheld radios offer portability and backup in a man-overboard situation, while fixed-mount units typically provide higher transmit power, better antenna performance, and integrated power/GPS; many boaters carry both for redundancy

Handheld battery life typically ranges from 8–20+ hours depending on use and battery type; look for models with rechargeable battery packs, USB charging, and the option to run from the vessel’s 12V system or external batteries for fixed units

Requirements vary by country; many regions require an operator license for GMDSS/DSC use and registration of an MMSI number to enable DSC distress calling, so check local marine radio regulations before operation

Very important—marine radios should have marine-grade waterproofing (IPX7 or equivalent) and corrosion-resistant materials to withstand spray, immersion, salt, and UV exposure common in marine environments

Rinse with fresh water after salt exposure, allow to dry, inspect and clean connectors and antenna mounts, keep batteries charged and replace when capacity drops, and store units out of direct sunlight when not in use