Garmin gmr 21 User Manuals

Table of Contents

• GMR 21/41 Marine Radar

  1
• Introduction

  3
  • About This Manual

    3
  • Terminology Used Throughout This Manual

    3
• GMR 21/41 Operation

  5
  • Radar Overview

    5
  • The Radar Page

    5
    • Radar Page Layout

      7
      • Range Rings

        8
      • Heading Line

        8
      • Digital Navigation Data

        8
  • The Radar Configuration Page

    9
  • The Radar Adjustment Menu

    9
    • Gain

      10
    • Sea Clutter

      10
    • Rain Clutter

      11
    • FTC (Fast Time Constant)

      11
    • Zoom

      12
    • Target Expansion

      12
    • Trails

      13
    • Guard Zone

      13
    • VRM/EBL

      14
    • MARPA

      15
    • MARPA Setup

      16
    • Hide/Show Navigation Features

      17
    • Additional Adjustment Menu Items

      17
    • Map Cursor On/Off

      18
    • Setup

      18
      • The General Tab

        18
      • The Display Tab

        19
      • The MARPA Tab

        20
      • The Advanced Tab

        20
    • Enter Standby/Begin Transmitting

      21
  • Map Page Radar Overlay

    21
• Appendix

  23
  • European License Requirements

    23
  • Specifications

    24
  • FCC Compliance

    25
  • Declaration of Conformity

    25
  • Software License Agreement

    26
  • LIMITED WARRANTY

    26
  • Caution

    28