Garmin Signal VHF 400 Marine VHF Radio with Built-in AIS Transponder

Signal™ VHF 400 Marine VHF Radio with Built-In AIS Transponder

Important Notice:
As per FCC regulations, all units sold in the U.S. must be programmed by a qualified technician. Please ensure you submit the required programming form at the time of purchase. A copy of the MMSI Registration or FCC Ship Station License, along with the vessel master or owner's signature on the completed form, is necessary for programming.

Key Features

BUILT-IN AIS

Stay aware of your surroundings with AIS transmit and receive capabilities. This feature provides:

• Range, course, and speed of nearby AIS-equipped vessels.
• Information to help you navigate crossing situations with other vessels.

SLEEK DESIGN

• Compact and modern design.
• Edge-to-edge glass that takes up minimal space at the helm.

CLEAR AND SIMPLE COMMUNICATION

• Automated squelch to eliminate unnecessary radio noise.
• VHF audio playback to replay missed radio messages.
• Advanced watch modes for monitoring multiple channels simultaneously.

STAY CONNECTED

• Distress button using Class D DSC to quickly transmit emergency signals.
• Intuitive DSC features to easily contact other AIS-equipped vessels with just a tap.

EASY TO UPDATE

• Configure the radio, program the MMSI number, and receive over-the-air software updates via the ActiveCaptain® smartphone app and built-in Wi-Fi®.

INSTALLATION IS A BREEZE

• Single VHF antenna for VHF/DSC/AIS features.
• Built-in GPS antenna/receiver.
• Seamless chartplotter integration via the NMEA 2000® network and Garmin BlueNet™ Network.

ADAPTIVE NOISE CANCELLATION

• Machine learning algorithms eliminate wind, wave, and engine noise for the clearest audio experience.

ADVANCED WATCH MODES

• Continuous scanning of all VHF channels in the background.
• Simultaneously monitor channel 16 and your favorite preset channels.

VHF AUDIO PLAYBACK

• Replay audio messages for up to 3 minutes on any channel.

General Specifications

• Unit Size:
  • Head Unit: 75 x 160 x 104 mm (3.0" x 6.3" x 4.1").
  • Fist Mic: 100 x 60 x 31 mm (3.9" x 2.4" x 1.2").
• Operating Voltage: 9.6 - 32 VDC.
• Water Rating: IPX7.
• Display Type: IPS LCD, capacitive touch.
• Display Size: 3.5" (89 mm).
• Display Resolution: 640 x 480 pixels.
• Operating Temperature: –20° to 55° C (–4° to 131° F).
• Backlight Brightness: 1,000 nits.

VHF Radio Specifications

• Region: All U.S., Canadian, and International marine channels; NOAA weather channels.
• Frequency Range:
  • Tx: 156.025–162.025 MHz.
  • Rx: 156.025–163.275 MHz.
• Transmit Power: 25 W (high), 1 W (low).
• Sensitivity (12 dB SINAD): -118 dBm (-11 dBu/0.28 uV).
• Adjacent Channel Selectivity: 80 dB.

DSC Specifications

• Class: Class D.
• Sensitivity (1% BER): -117 dBm (-10 dBu/0.32 uV).
• Adjacent Channel Selectivity: 80 dB.

AIS Specifications

• Class: SOTDMA Class B.
• Frequency Range: 156.025 – 162.025 MHz.
• Power Output: 5 W.
• Sensitivity (20% PER): -115 dBm (-8 dBu/0.4 uV).

What's in the Box

• Garmin Signal™ VHF 400 head unit.
• Fist mic.
• Sun cover.
• Head unit power and external audio cable with fuse (2 m).
• Fist mic power cable with fuse (2 m).
• Drop cable for NMEA 2000® network (2 m).
• Mounting hardware.
• Mounting template.
• Documentation.

This powerful, feature-packed marine radio is designed to enhance your navigation and communication experience while ensuring safety and efficiency on the water.