FURUNO MARK-3 1761 marine radar OPERATOR'S MANUAL

Below you will find brief information for marine radar MARK-3 1761. The MARK-3 1761 marine radar is a compact, lightweight, and low-cost radar that is designed to meet the rigorous demands of the marine environment. It features a durable brushless antenna motor, on-screen alphanumeric readout of all operational information, and a variety of standard features, including EBL, VRM, Guard Alarm, Display Off Center, and Echo Trail. The MARK-3 1761 also includes a Watchman feature that periodically transmits the radar to check for radar targets that may be entering the alarm zone. Additionally the MARK-3 1761 can display ship's position in latitude and longitude, range and bearing to a waypoint, and ship's speed/heading/course.

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FURUNO MARK-3 1761 Operator's Manual | Manualzz

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Key features

  • Compact size
  • Lightweight
  • Durable brushless antenna motor
  • On-screen alphanumeric readout
  • Standard features: EBL, VRM, Guard Alarm, Display Off Center, Echo Trail
  • Watchman feature
  • Navigation Data Display
  • Zoom feature

Frequently asked questions

Use the GAIN control to adjust the sensitivity of the receiver. The proper setting is such that the background noise is just visible on the screen.

Use the A/C SEA control to reduce sea clutter. This control works by reducing the amplification of echoes at short ranges (where clutter is the greatest) and progressively increasing amplification as the range increases.

You can measure the range to a target by the range rings, by the cursor, and by the VRM (Variable Range Marker).

There are two ways to measure the bearing to a target: by the cursor, and by the EBL (Electronic Bearing Range).

Use the Guard alarm function to set a guard zone. You can set the desired range (0 to maximum range) and bearing (0 to 360 degrees) for the guard zone. When ships, islands, landmasses, etc. go into (or go out of) the guard zone, an audible alarm will sound.
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