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ii GMR 20/40 Owner’s Manual
INTRODUCTION > TABLE OF CONTENTS
Introduction ...........................................................................i
About This Manual ................................................................... i
Terminology used Throughout this Manual ........................... i
GMR 20/40 Operation ..........................................................1
Radar Overview ....................................................................... 1
The Radar Page ....................................................................... 1
Radar Page Layout ..........................................................................3
Range Rings ..............................................................................4
Heading Line .............................................................................4
Digital Navigation Data ............................................................4
The Radar Configuration Page ...............................................5
The Radar Adjustment Menu .................................................. 5
Gain ................................................................................................6
Sea Clutter ...................................................................................... 6
Rain Clutter .....................................................................................7
FTC (Fast Time Constant) ..............................................................7
Zoom ...............................................................................................8
Target Expansion ............................................................................8
Trails ...............................................................................................9
Guard Zone .....................................................................................9
VRM/EBL .....................................................................................10
MARPA ......................................................................................... 11
MARPA Setup .............................................................................12
Hide/Show Navigation Features ...................................................13
Additional Adjustment Menu Items .............................................13
Map Cursor On/Off .......................................................................14
Setup .............................................................................................14
The General Tab ......................................................................14
The Display Tab ......................................................................15
The MARPA Tab .....................................................................16
The Advanced Tab ..................................................................16
Enter Standby/Begin Transmitting ...............................................17
Map Page Radar Overlay ...................................................... 17
Appendix ............................................................................19
European License Requirements ........................................19
Specifications ........................................................................ 20
FCC Compliance .................................................................... 21
Software License Agreement ............................................... 22
LIMITED WARRANTY ............................................................ 22
Warning and Cautions .......................................................... 24