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HX370S Page 25
5.15 SIMPLEX/DUPLEX CHANNEL USE
All channels are factory-programmed in accordance with FCC (USA), In-
dustry Canada and International regulations. The mode of operation cannot
be altered from simplex to duplex or vice-versa. Simplex or duplex mode is
automatically activated, depending on the channel and whether the USA,
International or Canadian operating band is selected.
5.16 ENABLING S.O.S STROBE OPERATION
The S.O.S. STROBE feature utilizes the high-intensity strobe LED on the
front of the HX370S as a visual distress beacon. When enabled, the LED
blinks the internationally-recognized Morse Code “S.O.S.” message
(
•••
–––
•••
)
at a rate of 5 words per minute. This can be very useful in
summoning help from rescuers who may not be able to communicate with
you via radio.
1. Hold down the MEM key while turning the radio on to activate the emer-
gency S.O.S. Strobe. Once the radio comes on, the BUSY/TX LED will
flash the Morse Code S.O.S. message repeatedly.
2. The S.O.S strobe will not operate if the squelch is turned off (Squelch
must be set to threshold), the radio is receiving a transmission or trans-
mitting.
3. To disable the S.O.S. strobe function, turn the radio off and back on
again.