23
6
DSC OPERATION
6
■
Distress call
A distress call should be transmitted, if in the opinion of the
Master, the ship or a person is in distress and requires imme-
diate assistance.
NEVER
USE THE DISTRESS CALL WHEN YOUR
SHIP OR A PERSON IS NOT IN AN EMERGENCY.
A DISTRESS CALL CAN BE USED ONLY WHEN
IMMEDIATE HELP IS NEEDED.
D
D
Simple call
q
Confirm no distress call is being received.
w
While lifting up the key cover, push
[DISTRESS]
for
5 sec. to transmit the distress call.
• Emergency channel (Channel 70) is automatically selected and
the distress call is transmitted.
• When no GPS is connected, input your position and UTC time, if
possible.
• While pushing
[DISTRESS]
, the key backlighting blinks.
e
After transmitting the distress call, the transceiver waits for
an acknowledgment call on Channel 70.
• The distress call is automatically transmitted every 3.5 to 4.5
minutes.
• After 2 sec., the transceiver is set to Channel 16 automatically.
r
After receiving the acknowledgment, reply using the mi-
crophone.
25W
INT
TAG
Received
DistressACK
<Osaka Bay
<CLR˘
Beep Off>
CALLING
Distress Call
TX Complete
Now Waiting for ACK
<CLR
<CLR˘Cancel
Cancel ACK>
ACK>
After 2 sec.
25W
INT
TAG
Wait ACK
<CLR˘
Cancel ACK>
CALLING
Distress Call
Push for 5 sec.
Summary of Contents for iM504
Page 1: ...INSTRUCTION MANUAL iM504 VHF MARINE TRANSCEIVER...
Page 71: ...65 9 CONNECTIONS AND MAINTENANCE 9 Gasket Mounting base Cap Nut D D HM 162...
Page 77: ...TEMPLATE HM 157 HM 162 Unit mm inch R12 Max MB 75 Cut here...
Page 78: ......
Page 79: ...MEMO...
Page 80: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan A 6483H 1US q Printed in Japan 2006 Icom Inc...