Copyright © 2015 RCA Communications Systems
3
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
DISTRESS CALL PROCEDURE
USING CHANNEL 16
1. “MAYDAY MAYDAY MAYDAY.”
2. “THIS IS ...............” (name of vessel)
3. Your call sign or other indication of the
vessel (AND 9-digit DSC ID if you have one).
4. “LOCATED AT ...............” (your position)
5. The nature of the distress and assistance
required.
6. Any other information which
might facilitate a rescue.
Or, transmit your distress call using Digital
Selective Calling on Channel 70.
DISTRESS CALL PROCEDURE
USING DIGITAL SELECTIVE
CALLING (DSC ) CHANNEL 70
1. While lifting up the key cover, hold down
[DISTRESS] for 3 seconds until you hear 3 short
beeps change to one long beep.
2. Wait for an acknowledgment on Channel 70
from a coast station.
• After the acknowledgment is received, Channel
16 is automatically selected.
3. Hold down [PTT], then transmit the appropriate
information as listed above.
PRECAUTIONS
■
WARNING! NEVER
connect the transceiver
to an AC outlet. This may pose a fire hazard or
result in an electric shock.
■
WARNING! NEVER
connect the transceiver
to a power source of more than 16 V DC or
use reverse polarity. This will could cause a fire
the transceiver.