540
CONTROL STATION
Studio ti 03312 540-04usa
106
6
6.6 INSTRUMENTATION
6.6.1 VHF-DSC Radiotelephone
Operate the radiotelephone according to the following instructions:
−
Power the device through the switch located on the 12 V users electric
panel of flybridge.
−
Push POWER switch to switch on and off the radiotelephone.
−
Set the audio and squelch levels by means of knobs VOL and SQL.
−
Select channels with knob CHANNEL.
−
To transmit, use the microphone by holding key PTT pushed.
The handset display shows always the information concerning the
channel selection, the operation mode and the output power.
The HI/LO key, allows to select the output power (high -25 W, low -1 W).
The 16-9 key, selects the help and safety channel; it is used to establish
an initial contact with another station and for emergency calls.
This key also allows to memorize the call channels more frequently used
in order to recall them quickly.
The DISTRESS key, if pressed for 5 seconds, transmits the rescue calls.
−
Urgency - “PAN-PAN, PAN-PAN, PAN-PAN”
(pronounced PAHNPAHN). Used when a person or vessel is in some
jeopardy less than indicated by a Mayday call.
The DSC/ENT key selects the DSC menu for Digital Selective Calls.
For the activation of transceiver’s particular functions, see the specific
manual delivered by the Manufacturer.
receiver
switch ON/OFF
key
volume control
display
scroll/channel
tracking key
communication key
on regular/weather
channels
help/safety
channel
channels
selectors
squelch
control
PTT
(press to
send)
microphone
channel
change key
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