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Page 27HX751E
4. Press the
[
SQL
]
key to select the Menu item “04
tEP”.
5. Press the
[
]
or
[
]
ke2y to set the difference be-
tween HX751E display and the calibrated thermom-
eter.
For example, if the HX751E display shows “25.5 °C”
and the (calibrated) thermometer indicates “23.0 °F”, set the temperature
offset to “–2.5 °C”.
6. Press the
[
SQL
]
key to save the new setting, then press the PTT switch to
exit to normal operation.
The temperature sensor may not display the correct temperature when
the temperature inside the radio is high; for example, while the trans-
mission mode or high receiver audio output.
6.14 ENABLING S.O.S STROBE OPERATION
The S.O.S. STROBE feature utilizes the high-intensity strobe LED on the front
of the HX751E 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.
6.14.1 ACTIVATING S.O.S STROBE OPERATION
1. Turn the transceiver off.
2. Hold down the
[
SQL
]
key, and then turn on the transceiver while still hold-
ing down the
[
SQL
]
key.
3. SEt” will appear on the display, indicating that the Menu (“Set”) Mode has
been activated.
4. Press the
[
SQL
]
key to select the Menu item “12 SOS”.
5. Press the
[
]
or
[
]
key to select “SoS”.
6. Press the
[
SQL
]
key to save the new setting, then press the PTT switch to
exit to normal operation.
6.14.2 OPERATION
1. Hold down the
[
LIGHT
(
STROBE
)]
key for 1 second, to activate the emer-
gency S.O.S. Strobe. The TX/BUSY LED will flash the Morse Code S.O.S.
message repeatedly.
2. The S.O.S. strobe function is interrupted when a signal is received or if the
squelch control is turned so audio is heard from the speaker.
3. To disable the S.O.S. strobe function, hold down the
[
LIGHT
(
STROBE
)]
key for 1 second again.
27


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