JRC JMA-7710-6 User Manual

5 – 20
5
The following alarms are available on the ATA system:
Dangerous target alarm (CPA ／ TCPA)
Guard zone entry alarm (GZ)
Lost target alarm (LOST)
5.6.1 Dangerous Target Alarm : CPA ／ TCPA
CAUTION
Since the alarm may include some errors depending on target tracking situations, the
operator should make the final decision for maneuvering the ship by himself.
For the system, targets are divided into two types: safety target and dangerous target . The degree of danger
can be easily recognized at a glance of the screen. So, the operator can easily judge which ship he should
pay special attention to.
Types of target and alarm are as follows:
Dangerous Target Alarm
Status Symbol on CRT Alarm character Buzzer Conditions
○ • CPA > MIN CPA
Safety target Symbol color : (Not displayed) (OFF) • 0 > TCPA
White • TCPA > MIN TCPA
▲
Beep • CPA ≦MIN CPA,
Dangerous target Symbol color : Red CPA/TCPA
Blinks *
Resettable * 0 ≦

TCPA ≦

MIN TCPA
MIM CPA, MIN TCPA : The setting value
* Pressing the
ALARM
ACK
switch stops an alarm sound and blinking.
5.6 Alarm Display

JRC JMA-7710-6 Specifications

General

Brand	JRC
Model	JMA-7710-6
Category	Marine Radar
Language	English