Furuno RC-1500-1T manual DSC Regulations

DSC Regulations

Item	Action initiated	Regulations
	by:
Initiation of	Coast	With delay of 1 min to 2 3/4 min (2 min 45
acknowledgement of distress		sec) after receipt of distress call.
call transmitted on MF or HF
band.
Initiation of	Ship	Wait 3 min for distress acknowledge (DIST
acknowledgement of distress		ACK) signal from coast station.
call transmitted on MF or
VHF band.		3 minutes later
(When believing that no
coast station is likely to be		• First: by radiotelephone
able to acknowledge it.)		• Second: by DSC
		(If acknowledgement by
		radiotelephone is unsuccessful,
		use DSC.)
Retransmission (Repetition)	Ship	At a random delay between 3 1/2 and 4 1/2
of distress alert (until		min from the first distress call.
acknowledged).
Distress relay call on HF	Ship	Wait 3 min for distress acknowledge (DIST
band		ACK) signal from coast station.
		If no acknowledgement is received within 3
		min, no disteress relay call from other ship
		is received and no voice distress
		communications from other station is
		received, transmit a distress relay call to the
		appopriate coast station.
Retransmission of Individual	Ship	Wait 5 min for acknowledgement (ACK
Call.		BQ) signal after transmission of individual
		call (ACK RQ).
		If no ACK BQ signal is received within 5
		min, you may retransmit the message.
		Then, wait 15 min for ACK BQ signal.
Reply to Individual Call.	Coast	With delay of 5 seconds to 4 1/2 min after
(ACK BQ transmission)		receipt of Individual Call.

Part 3