SIMRAD RA771UA Marine Radar Instruction manual

Below you will find brief information for Marine Radar RA771UA. This radar is designed for small and medium-sized vessels. It offers several advanced technologies, including a microcomputer, a high-resolution display, and automatic sea clutter suppression. This device supports several functions, including plotting the track of targets, off-centering, setting a guard zone around your ship, and rejecting interference from other radars.

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SIMRAD Marine Radar RA771UA Instruction Manual | Manualzz

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Key features

  • High resolution display
  • Automatic sea clutter suppression
  • Automatic gain control
  • Automatic tuning
  • Off-centering feature
  • Electronic cursors (EBLs and VRMs)
  • Guard zone function
  • Echo track plotting
  • Radar interference rejection
  • Navigation data display

Frequently asked questions

The RA771UA features a high-resolution display, automatic sea clutter suppression and gain control, automatic tuning, off-centering, electronic cursors, guard zone function, echo tracking, interference rejection, and navigation data display.

To set the guard zone, press the VRM key to set the range, press the EBL key to set the direction, and then press the GZ key. You can then customize the size of the guard zone by pressing the GZ key multiple times, moving it to different positions using the control knob. An alarm will sound if a target enters the guard zone.

Yes, you can adjust the display brightness by pressing the BRILLIANCE key. Each press will change the brightness by one level.

You can adjust the range using the RANGE UP and RANGE DOWN keys.

The ST key activates a stretching function that makes it easier to observe echoes from medium or long-range targets.

To erase the heading marker, you can use the selectable key functions in the SETUP menu, set that function to the corresponding key, and then press that key.

The display modes can be changed to Head Up, Head Set, and North Up using the selectable key functions in the SETUP menu, assuming a gyro compass is connected to the radar.
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