55
3) For sending a Distress Cancel to all bands will be used button
. At this
time, you can turn the knob (front channel change knob) to select a frequency and
press
to send a Distress Cancel call again to the corresponding DSC
frequency band.
4) Push the button
and the Distress Cancel procedure will end.
7-5
AN EXAMPLE OF PROCESSING MULTIPLE
DISASTER MESSAGES.
7-5-1
DISASTER MESSAGE SCENARIO
No
Time
Type
DSC FREQ
Note
1
00:00
DISTRESS
4207.5Khz
Dist id 273000001
2
01:20
DISTRESS ACK
4207.5Khz
From 273000005
3
02:40
DISTRESS
12577Khz
Dist id 273000001
4
04:00
DISTRESS ACK
12577Khz
From 273000006
7-5-2
RECEIVING THE FIRST MESSAGE
Message: DISTRESS ALERT
Received DSC frequency: 4207.5Khz