The Simrad RS40-B AIS Transceiver VHF Radio is not just a radio—it's the safety and navigation hub every serious boater needs. As the first VHF radio to combine an integrated Class B AIS transceiver with a built-in GPS receiver in a single unit, the RS40-B keeps you connected, seen, and aware in dynamic environments from busy harbors to open-water passages.

Integrated AIS for visibility and proactive safety

With an integrated Class B AIS transceiver, your vessel’s position is broadcast to nearby AIS-equipped ships, while you receive alerts on nearby targets. This two-way AIS capability enhances collision avoidance—especially in crowded waterways or poor visibility—so you can navigate with confidence. AIS data can be viewed directly on the radio’s display or overlaid on your chart or radar through a compatible multifunction display, giving you a clear, at-a-glance situational picture.

Key capabilities

• Integrated Class B AIS transceiver: see nearby AIS-equipped vessels and transmit your own position for enhanced visibility at sea.
• Built-in GPS receiver: reliable positioning fed directly to the radio and compatible displays (GPS500 antenna included when needed for optimal reception).
• VHF radio with DSC (Class D) capability: trusted marine communications with precise MMSI-based calling and distress features when properly configured.
• Removable fist microphone: mountable from the front or rear, with extension options to reduce cockpit clutter and enable flexible installations.
• Wireless handsets (HS40) compatible: add up to two handheld units to access the radio from anywhere on board and even use them as an onboard intercom.
• Expandable audio options: pair with a loudhailer or external speaker for broad-deck communication.
• NMEA 0183 and NMEA 2000 connectivity: seamless data integration with plotters, radar, and other on-board devices.
• Display and interoperability: AIS targets can be viewed on the RS40-B screen or synced to compatible MFDS for a unified navigation workflow.

The RS40-B is designed for real-world maritime use—robust, compact, and ready to integrate into your existing navigation ecosystem. It’s ideal for coastal cruisers, commercial skippers, fishing boats, and charter operators who need reliable radio comms plus the safety net of AIS right at the source.

What this means in practice

• Safer passages in busy ports: quickly assess nearby traffic and plan safer routes with AIS overlays on your chartplotter.
• Efficient onboard comms: keep the bridge quiet while still communicating everywhere on the vessel via HS40 handsets—great for deckhands, piloting, or dockside coordination.
• Flexible installation: removable microphone and optional extension cables enable overhead mounting or flush installations without cable clutter.
• Future-ready connectivity: NMEA 0183/2000 makes it easy to integrate with current and future navigation gear, enhancing data sharing across your onboard network.

Minimum requirements and considerations

• RF connection requires a VHF antenna (sold separately).
• AIS functionality needs a second VHF antenna or an AIS antenna splitter to operate concurrently with the VHF radio.
• DSC functions require an MMSI number issued by local authorities (charges may apply).

With the RS40-B, Simrad delivers a purpose-built maritime radio that elevates safety, simplifies operation, and strengthens your onboard communication network. It’s a cohesive, intelligent solution that keeps you connected to the moment, and to the people on your vessel, wherever your voyage takes you.