Radar Introduction - Furuno TZT9 Operator's Manual

1. SYSTEM INTRODUCTION
1.8

Radar Introduction

A radar system operates in the microwave part of the radio frequency (RF) range. The
radar detects the position and movement of objects. Objects are shown on the radar
display at their measured distances and bearings in intensities according to echo
strength.
The radar display is available in head-up and north-up modes and orientation in true
and relative motion. The relative motion display shows other ships movement relative
to your ship. The true motion display shows your ship and other objects in motion ac-
cording to their true courses and speeds.
A guard zone tells you when the radar targets are in the area you indicate. The trail of
targets can be shown in afterglow to monitor their movements.
The dual range display scans and displays two different radar ranges at the same
time. This display lets you watch on both short and long ranges at the same time.
10:30 AM
DRS_RADOME
Gain
Sea
Rain
Data
area
Range
1-12
230
North mark North mark
220
210
200
190
180
Heading line Heading line
170
160
150
140
130
120
110
Range ring interval
260
270
250
240
280
290
N
Your ship's position Your ship's position
50
60
100
90
70
80
Range rings
300
310
320
330
340
Guard zone Guard zone
350
0
10
20
30
40