Item #866358

Furuno Black Box VHF with AIS Receiver System and GPS - FM4850

00 Review
Want an email once available?
Buy with

Image of : Furuno Black Box VHF with AIS Receiver System and GPS - FM4850 Furuno Black Box VHF with AIS Receiver System and GPS - FM4850 Item # 866358


The Furuno FM4850 Black Box VHF with AIS Receiver System and GPS is the ultimate 5-In-1 tool of VHF radios!

The FM4850 is a new marine Black Box VHF radiotelephone with built-in Class D DSC, AIS Receiver, and Simplified Loud Hailer with intercom. Its compact housing enables it to be installed in a variety of craft, even vessels where space is limited, such as center-console boats.The FM4850 handset shares a common appearance with other Furuno equipment, such as NavNet TZtouch2, NavPilot 711C, and the FI70 Instrument series, offering an integrated appearance to any helm. Its built-in AIS Receiver can be used to overlay AIS targets with networked GPS Plotters or MFD's, such as NavNet TZtouch, NavNet TZtouch2, or GP1871F/GP1971F combo units.

An external GPS antenna can be connected to the FM4850, and it can share its own GPS, DSC and AIS information via NMEA0183 or NMEA2000. When connected via NMEA2000 to any NavNet TZtouch2 MFD, DSC calling can be initiated directly from the TZtouch2 MFD by simply tapping on the AIS/DSC target and selecting [DSC Call]. Additionally, when MOB (Man Overboard) is activated on a TZtouch2 MFD, the FM4850 enters a special mode where you can initiate a distress call by simply pushing the rotary knob on the handset.

The unit can operate as a simplified Loud Hailer with intercom, featuring 8 patterns of alert sounds. Loud Hailer, Fog Horn and Warning Signal features are all available, enhancing onboard safety and communications while navigating in the dark or fog. When connected with the second-station handset, intercom communications are available, allowing communications between the two devices. Additionally, the horn speaker can be used to collect external sounds and transmit them through the built-in speaker with a function called Listen Back. In this way, a person on the deck can easily communicate with the bridge, a particularly useful feature for a variety of fishing vessels and workboats. The Listen Back function can also be an effective tool on sport fishing vessels, allowing the horn speaker to collect the sound from fishing rods and lines when you get a strike.

The FM4850 is a black box version of the FM4800 with all of the same features and functions, but without a display. The FM4850 kit comes standard with one HS4800 Handset (001-468-560-00), which features an LCD display, and one SP4800 Speaker (001-468-580-00).


  • Furuno FM4850 Black Box VHF includes GPS, AIS, Loud Hailer, NMEA2000 and DSC Calling
  • Built-in AIS receiver
    • When connected to an MFD or Chart Plotter that can read and display AIS data, the built-in AIS receiver will guarantee your safety at sea by providing all the data you need for situational awareness and collision avoidance
  • Loud Hailer
    • 15W PA / Loud Hailer having 8 automatic fog/warning signals and a listen-back capability allowing for two-way communication
  • Class D DSC
    • With Class D DSC (Digital Selective Calling), the FM-4850 allows you to transmit both routine calls and distress calls in case of an emergency
  • NMEA2000 Interface
    • Plug and play NMEA2000 interface allows you to easily connect the FM-4850 to your navigation devices
    • When connected to the NavNet TZtouch2, DSC calls can be initiated directly from your MFD
  • Dual Station
    • The optional handset HS-4800 supports all the functionality of the FM-4850 and works as a second station
    • Intercom function is also supported
  • 25W / 1W output power
  • Loud Hailer/ Fog Horn
  • Dual Station with optional handset
  • ATIS mode for inland waterways
  • 10 weather channels
  • Fully waterproof (IP67)
  • Up to 3 Handsets HS-4800 and Speakers SP-4800 connectable


  • General
    • Channels International, USA and Canada
    • Frequency Stability Within ± 1.5 kHz
    • Communication System Simplex / Semi-duplex
    • Antenna Impedance 50 ohms
    • Display Monochrome, 192 x 128 dot (FM-4850, HS-4800)
  • Transmitter
    • Frequency Range 156.025 MHz to 162.000 MHz
    • Output Power 25W max., 1W at power reduction
    • Frequency Deviation ± 5 kHz max
    • Spurious Emission
      • Standby : less than 2nW
      • Transmit: less than 0.25 µW
      • 16K0G3E (F3E9) Voice, 16K0G2B (F2B) DSC
  • Receiver
    • Frequency Range 155.500 MHz to 163.275 MHz
    • Sensitivity ± 6 dBµV EMF. or less (SINAD 20 dB)
    • Channel Selectivity 70 dB or more
    • Spurious Response 70 dB or more
  • DSC
    • Protocol Class D DSC
    • Sensitivity 0 dBµV EMF. or less (BER < 1%)
    • Channel Selectivity 70 dB or more
    • Spurious Response 70 dB or more
  • AIS Receiver
    • Receiver Frequency (CH)
      • 161.975 MHz (AIS1)
      • 163.025 MHz (AIS2)
    • Sensitivity -107 dBm or less (PER < 20%)
    • Channel Selectivity 70 dB or more
    • Spurious Response 70 dB or more
  • GPS Receiver
    • Receiving Frequency 1575.42 MHz
    • Number of channel 72 channels
    • Accuracy 10 m
    • Position Fixing Time (cold start) 120 sec typical
    • Position Update Interval 1 sec
  • Loud Hailer/Fog Horn
    • Output Power 30W max. (4 ohm)
  • Interface
    • Number of port
      • NMEA0183 2 port (IN: 1, OUT: 1)
      • NMEA2000 (3LEN) 1 port
    • NMEA0183 Sentence
      • Input: TM, GGA, GGL, GNS, RMA, RMC
      • Output: DSC, DSE, GLL, RMC, VDM
    • NMEA2000 PGN
      • Input: 059392/904,060160/416/928, 065240,126208,127258,129026,029,044
      • Output : 059392,060928,126208/464/993/996/998, 129025/026/029/038/039/040/041/540/793/794, 129795/797/798/801/802/808/809/810
  • Power Supply
    • Power Voltage 12.0V DC (-10%, +30%) 5.0 Amp Max
  • Environment
    • Ambient Temperature -15° C to +55° C
    • Relative Humidity 93 or less a +40° C
    • Degree of Protection IP67 (FM-4850, HS-4800, SP-4800)

Owner's Manual and Installation Guide (4.43 MB)

Product Brochure (1.33 MB)

Part Numbers for Furuno Black Box VHF with AIS Receiver System and GPS - FM4850

Related Categories

Related Categories


  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getReviews, 4.28ms
  • bvseo-msg: HTTP status code of 404 was returned;


  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getContent, 2.83ms
  • bvseo-msg: HTTP status code of 404 was returned;