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30 Northtstar Explorer VHF Series: 710US, 710EU Operation and Installation Manual
5-2-9 Request the LL Position of a Buddy (LL REQUEST)
1. Press CALL/MENU to enter DSC mode, then select LL REQUEST.
2. Select the buddy whose LL position you want to request then press ENT to send the request. (See Section
5-3-5 for the acknowledgement.)
3. The working channel name is displayed while the radio waits for an acknowledgement from your buddy.
If there is no reply after 1 minute the radio asks if you want to retry. Continue as explained in Section
5-2-2.
5-3 Receiving DSC Calls
Several types of DSC calls can be received from vessels within range at various priority levels:
DISTRESS See Section 6.
ALL SHIPS Urgency or Safety priority (see Section 5-3-1)
Note: In some countries, ALL SHIP DISTRESS calls are received.
INDIVIDUAL Urgency, Safety, or Routine priority (see Section 5-3-2)
Note: In some countries, INDIVIDUAL DISTRESS RELAY calls are received.
GROUP Routine priority only (see Section 5-3-3)
GEOGRAPHIC Routine priority only (see Section 5-3-4)
POLLED POSITION Routine priority only (see Section 5-3-5)
In addition to the audible alert, the telephone icon will fl ash on the screen.
5-3-1 Receiving an All Ships Call (ALL SHIPS)
1. When you receive notifi cation of an ALL SHIP call, press any key to
cancel the alert. The radio automatically selects CH16.
The priority level and the user MMSID are displayed on the screen. If the
radio recognises the user MMSID as one of your buddies, the buddy’s
name is displayed in place of the user MMSID.
2. No acknowledgement is required. Press PTT to initiate voice contact on CH16 and then switch to a
working channel.
The call data is stored in the Call Log (see Section 5-2-7).
DSC CALL
CALL LOG
DIST LOG
> LL REQUEST
LL REQUEST
> SAM
VHF710
BUDDY #3
SAM
LL REQUEST
CALLING...
SAM
LL REQUEST
> SEND?
channel name
SAM
LL REQUEST
AWAITING ACK
RCV: ALL SHIP
priority
VHF710
ESC –> EXIT