General
BUILT-IN AIS
Stay aware on the water with built-in AIS receive capabilities. This feature shows you range, course, speed and the crossing situation of other AIS-equipped vessels around you to help you navigate.
SLEEK DESIGN
The compact and modern design features edge-to-edge glass and takes up minimal space at the helm.
CLEAR AND SIMPLE COMMUNICATION
Eliminate unnecessary radio noise with automated squelch. If you miss a radio message, you can replay it with VHF audio playback. When you need to maintain watch on multiple channels, advanced watch modes make it easy.
STAY CONNECTED
Quickly transmit a distress signal to nearby vessels with the distress button, which uses Class D DSC to automatically send crucial information that can help emergency responders. You can also use the intuitive DSC features to quickly initiate contact with other AIS-equipped vessels; simply select the vessel on the AIS plotter view, and call them with a tap of a button.
EASY TO UPDATE
Configure the radio, program the MMSI number, and get over-the-air software updates with the ActiveCaptain® smartphone app via built-in Wi-Fi® connectivity.
INSTALLATION IS A BREEZE
Installation is simple since VHF/DSC/AIS features only require a single VHF antenna and the GPS antenna/receiver is built into the unit. Chartplotter integration is seamless via the NMEA 2000® network and Garmin BlueNet™ Network.
ADAPTIVE NOISE CANCELLATION
Advanced noise cancellation uses machine learning algorithms to eliminate wind, wave and engine noise for our cleanest audio experience.
AUTOMATED SQUELCH
Radio activity is constantly monitored to eliminate unnecessary noise and static. You also have the option for manual fine-tuning.
ADVANCED WATCH MODES
All VHF channels are continuously scanned for activity in the background, allowing you to maintain watch over channel 16 and all your favorite preset channels simultaneously.
VHF AUDIO PLAYBACK
Didn’t catch that message? Replay it with VHF audio playback, and listen to audio messages for up to 3 minutes on any channel.
AIS TRANSPONDER
Maintain situational awareness with the built-in Class B AIS SOTDMA transponder.
FIST MIC
The included fist mic features a built-in speaker (5-watt RMS) and can be mounted in a different location to the head unit.
RUGGED DESIGN
The radio is built to withstand harsh marine environments with an IPX-7 rating.
EXTERNAL SPEAKER SUPPORT
Connect a compatible external speaker for more playback options beyond the built-in speaker on the fist mic.
HAILER WITH LISTEN BACK
Connect the radio to a compatible loudhailer for broadcasting announcements. The listen back feature gathers background sounds that can be heard through the fist mic or external speaker.
General
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")
Weight
Head Unit: 655 g (1.45 lbs)
Fist Mic: 245 g (0.54 lbs)
Water rating
IPX7
Operating voltage
9.6 - 32 VDC
Display Type
Color IPS LCD, capacitive touch
Operating temperature
–20° to 55° C (–4° to 131° F)
Display size
3.5" (89 mm)
Display resolution
640 x 480 pixels
Inland waterways (ATIS)
Yes
Backlight
1,000 nits
Multi-language interface
Yes
VHF Features
Adaptive noise cancellation
Yes
Audio record and playback
Yes
Auto squelch
Yes
Dual/Tri watch
Yes
Presets watch
Yes
NOAA weather alert
Yes
NOAA weather watch
Yes
Loud hailer
Yes
Loudhailer listen back
Yes
Intercom support
Yes
AIS target display
Yes
AIS collision and MOB alarms
Yes
Integrated AIS transponder
Yes
VHF Radio
Region
All U.S., Canadian and International marine channels; NOAA weather channels
VHF frequency range TX
156.025–162.025 MHz
VHF frequency range RX
156.025–163.275 MHz
VHF transmit power (max)
25 W, 1 W (high, low)
Transmitter frequency tolerance
+/0.3 kHz
Adjacent channel power
more than 70 dB
Spurious emissions
Less than –80 dBc (at 25 W)
Sensitivity (12 dB SINAD)
-118 dBm (-11 dBu/0.28 uV)
Adjacent channel selectivity
80 dB
Spurious response
More than 75 dB
VHF intermodulation
More than 75 dB
Max antenna gain
6 dBi
DSC
Class
D
Sensitivity (1% BER)
-117 dBm (-10 dBu/0.32 uV)
Adjacent channel selectivity
80 dB
Spurious response
more than 75 dB
Intermodulation
more than 75 dB
AIS
Remote station support
RM 100 (x5)
Class
SOTDMA Class B
Long range position reports (Msg 27)
Yes
Frequency range
156.025 – 162.025 MHz
AIS power output
5 W
AIS Sensitivity (20% PER)
-115 dBm (-8 dBu/0.4 uV)
Adjacent channel selectivity
80 dB
Spurious response
More than 75 dB
Intermodulation
More than 65 dB
GNSS
Integrated GNSS receiver
Yes
Integrated GNSS antenna
Yes
Constellations
GPS, GLONASS, BeiDou, Galilleo
Differential support
SBAS, AIS Msg 17
Navigation rate
10 Hz
Sensors
NMEA 2000 Compatible
Yes
Battery voltage
Yes
Audio
Max speaker output power
Fist Mic: 5 W RMS, < 1% THD
Max external speaker output power
15 W RMS, < 1% THD, 4 Ω
Max hailer loudspeaker output power
25 W RMS, < 1% THD, 4 Ω
Tactical Features
Night vision mode
Yes
Stealth Mode
Yes
Electrical Features
Typical current draw at 12 Vdc
Head Unit: 700 mA, 6 A max
Fist Mic: 90 mA, 0.9 A max
Compass safe distance
Head Unit: 70 cm (27.6")
Fist Mic: 40 cm (15.8")
Networking & Connections
Garmin Marine Network
GMN 1.0/2.0
Wireless Connectivity
Access point for mobile phones, 802.11b/g/n, integrated antenna
Wireless security
WPA2 Personal
External GNSS antenna connector
SMA
Ant connector
SO-239 (50 Ω)
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Garmin Signalâ„¢ VHF 400 head unit
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Fist mic
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Sun cover
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Head unit power and external audio cable with fuse (2 m)
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Fist mic power cable with fuse (2 m)
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Drop cable for NMEA 2000® network (2 m)
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Mounting template and Hardware
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Documentation