See and Be Seen with Integrated AIS
The RS40-B includes a Class B AIS transceiver, which not only receives AIS targets but also transmits your boat's position to nearby AIS-equipped vessels. This helps other mariners to spot your boat through any conditions, day or night. A built-in AIS receiver monitors the position of other AIS-equipped vessels, helping you to proactively avoid collisions in crowded harbours and waterways. AIS information can be viewed on the radio’s built-in screen, or overlaid on your chart or radar screen through a compatible multifunction display.

Removable Fist Mic
The RS40-B's removable fist mic can be connected to the front or rear of the radio, and optional extension cables allow the mic and radio to be mounted separately. This offers a simple and cost-effective solution for any mounting location, with no cable clutter. For example, the RS40-B can be mounted overhead, with no hanging cables, while the mic is connected to an extension socket on the dash below.

Expandable with Wireless Handsets
Add an optional HS40 wireless handset to take your radio anywhere on board. Each handset duplicates your radio's display and controls, enabling remote access to all key functions. Up to two handsets can be connected to a single RS40-B, and with multiple handsets connected your radio doubles as an on-board intercom.