Furuno FM4850 Black Box Marine VHF Radio

The ultimate 5-In-1 Tool of VHF Radios

The Furuno FM4850 Black Box Marine VHF Radio 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.

Built-In DSC and AIS
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.

Loud Hailer, Intercom, and Listen Back Features
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.

Furuno FM4850 Black Box Marine VHF Radio
Features:

• 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
• 15 W PA/Loud Hailer having 8 automatic fog/warning signals and
  a listen-back capability allowing for two-way
  communication
• With Class D DSC (Digital Selective Calling), the FM-4800
  allows you to transmit both routine calls and distress calls in
  case of an emergency
• Plug and play NMEA2000 interface allows you to easily connect
  the FM-4800 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 al the
  functionality of the FM-4800 and works as a second station.
  Intercom function is also supported
• 25 W/1 W 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

Furuno FM4850 Black Box Marine VHF Radio
Specifications:

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-4800, HS-4800)

Transmitter

• Frequency Range: 156.025 MHz to 162.000 MHz
• Output Power: 25 W max., 1 W 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 e.m.f. 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 e.m.f. or less (BER < 1%)
• Channel Selectivity: 70 dB or more
• Spurious Response: 70 dB or more