Icom IF4021T/S Marine Radio User Manual


 
14
3
BASIC OPERATION
User set mode
User set mode is accessed at power ON and allows you to
set seldom-changed settings. In this case you can “cus-
tomize” the transceiver operation to suit your preferences and
operating style.
Entering the user set mode:
q While pushing and holding [Side2] and [Side3], rotate
[VOL] to turn the power ON. Then, push and hold [P0] for 1
sec. to enter user set mode.
w Push [P0] several times to select the appropriate item.
Then push [CH Up] or [CH Down] to set the desired
level/condition.
• Available set mode functions are Backlight, Beep, Beep Level,
SQL Level, Mic Gain, Battery Voltage and Signal Moni.
e Rotate [VOL] to turn the power OFF to exit user set mode.
NOTE: User set mode is also available via a programma-
ble function key. Refer to “USER SET MODE KEY.” (p. 9)
Emergency transmission
When [Emergency Single] or [Emergency Repeat] is pushed,
an emergency signal is automatically transmitted for the spec-
ified time period.
When [Emergency] is pushed, the DTMF emergency signal
is transmitted on the priority channel.
When [Emergency Single] or [Emergency Repeat] is pushed
for the specified time period, the DTMF emergency signal is
transmitted once or repeatedly on the emergency channel.
However, when no emergency channel is specified, the signal
is transmitted on the previously selected channel.
Scrambler function
The voice scrambler function provides private communication
between stations. The frequency inversion type is equipped
to all versions, moreover, the optional Rolling or Non-rolling
type can be available.
q Push [Scrambler] to turn the scrambler function ON.
• “ ” appears.
w Push [Scrambler] again to turn the scrambler function
OFF.
• “ ” disappears.