AIS Receiver


The transponder unit contains a VHF transmitter, two TDMA receivers on parallel VHF channels, a DSC channel 70 receiver, interface processor and internal GPS receiver. The GPS receiver is a 12-channel all-in-view receiver and has Differential capabilities (DGPS). The GPS receiver provides UTC reference and also provides position, COG and SOG in the event that a connected external GPS receiver fails.

AIS Component connections from ALCOM drawing

Standard Features

  • Class-A Universal AIS
  • Target ship’s CPA/TCPA, COG/SOG, name on the basic scrolled LCD display
  • Interfaces for radar, ECDIS, PC (Future expansion – LAN and Long Range AIS operation)
  • Built-in GPS receiver for UTC synchronization and backup position fixing
  • Heading information by GPS compass (SC50/SC110) or gyrocompass
  • Upgrade existing Furuno radars for AIS target view by retrofitting the RP card (FR-15x5MK3, FR-21×5 and FAR-28×5 series)
  • 4.5″ Silver Bright LCD display
  • Ship reporting capacity – 2,000 reports/minute, 4,500 reports/minute on two channels
  • TDMA Transmitter
    • TX Frequency – 156.025 MHz – 162.025 MHz, manual/automatic setting
    • Transmitter Power – 1W / 2W / 12.5W, manual/automatic selection
  • TDMA Receiver
    • RX Frequency – 156.025 MHz – 162.025 MHz by 2 channels
  • DSC Receiver
    • RX Frequency – CH70 (156.525 MHz)
  • 12-channels internal GPS Receiver w/ Differential (DGPS)

Screen Shot 2016-07-26 at 4.04.21 PM

Screen Shot 2016-07-26 at 4.04.47 PM

Its location on the dashes shown below

AIS in Dash Layout
AIS in the dash layout starboard

and its antennae are arranged on the FRP stack as follows

AIS Antennae on the FRP Stack