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Navigation & Electronics

Whistler runs a full B&G navigation suite on NMEA 2000, with an EM-Trak AIS transponder added post-delivery.

Chartplotter — B&G Zeus3S

Two Zeus3S plotters — one at each helm station. Both display the same network data (charts, AIS, instruments, autopilot).

Feature Detail
Charts C-MAP or Navionics (check what's loaded)
AIS overlay All AIS targets shown with CPA/TCPA
Depth overlay Live depth from AirMar transducer
Autopilot control Can engage/steer autopilot from Zeus3S
Instrument data Speed, wind, depth, log all displayed

Key Zeus3S tips:

  • Press the NAV button to go to the chart page
  • Tap any AIS target to see vessel name, speed, bearing, CPA
  • The MOB (man overboard) button is on the main toolbar — press it the moment someone goes over the side, it logs the position
  • Connect via WiFi to the B&G GoFree app for phone/tablet chart viewing

Instruments — B&G Triton2

Triton2 displays are mounted at each helm and show:

  • Boat speed (log)
  • Depth (with shallow alarm — set to 4 m minimum)
  • Wind speed and angle (true and apparent)
  • SOG / COG (GPS)

Set the depth alarm every time you anchor — use charted depth + 0.5 m buffer.

Autopilot — B&G NAC-2/3

Always keep a watch

The autopilot steers the boat but does not keep a lookout. Always have a crew member on watch when it is engaged.

Engaging:

  1. Steer onto desired heading
  2. Press AUTO on the Triton2 Pilot Controller (the dedicated keypad at the helm), or engage from the Zeus3S
  3. Confirm the heading displayed matches your intended course

Adjusting heading: Use the +1/+10 and -1/-10 buttons on the pilot controller to nudge course.

Disengaging: Press STANDBY on the pilot controller, or simply take the wheel — the autopilot will disengage when it detects helm input.

Wind mode: The autopilot can follow a constant wind angle rather than a fixed heading — useful when the wind direction shifts. Select from the pilot controller menu.

AIS Transponder — EM-Trak B951

Class B transmitting AIS — other vessels see Whistler on their plotters.

Parameter Value
MMSI (check the unit — set during installation)
Call sign Whistler
Transmit power 2W (Class B)
Update interval Every 30 sec at >14 kn, 3 min at rest

AIS targets appear on the Zeus3S chart overlay. Tap any target for CPA (closest point of approach) and TCPA (time to CPA). If TCPA < 20 min and CPA < 0.5 nm, treat as a potential collision situation and act.

VHF Radio — B&G V60
Channel 16 Always monitoring at sea — distress, safety, initial contact
Trogir port Ch 17
DSC Built-in — MMSI programmed. Press red DSC distress button for automated Mayday
GPS position Automatically included in DSC distress calls

The V60 has a handheld remote mic (wired) at each helm — you do not need to go below to use the radio.

Range: ~25–30 nm to another vessel, further to a coastal station on high ground.

B&G IP Cameras

Cameras mounted at the masthead (and/or below deck) feed live video to the Zeus3S plotter.

Access via Zeus3S menu or the iVMS350 app on a tablet/phone connected to the boat's WiFi network.

IP addresses for the cameras are noted in the Manuals section.

GPS / Antenna — B&G ZG100

Dedicated GPS antenna feeding position to the NMEA 2000 network. All instruments and the chartplotter receive GPS from this unit. No action required — it is always on when the nav system is powered.

Network & WiFi

VONETS WiFi bridge relays the boat's network to marina WiFi or a cellular source. The Teltonika RUTM11 cellular router provides 4G internet access at sea — SIM card required.

Connect devices to the boat's WiFi SSID (ask the skipper for the password).

Orca Navigation App

Orca is installed on a dedicated device. It provides routing, waypoint management, and integrates with the B&G network. Useful for passage planning when the Zeus3S is in use for navigation.

Manuals