Strobe Light - Standard Horizon HX751 Owner's Manual

6.14.2 OPERATION
Soak the thermal sensor on the front panel of the HX751 in
water for several minutes. The water temperature will be
shown on the display.
6.14.3 CALIBRATING WATER TEMPERATURE SENSOR
If the temperature display is incorrect, it can be re-calibrated via Menu Mode.
1. Turn the transceiver off.
2. Hold down the [ SQL ] key, and then turn on the trans-
ceiver while still holding 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 "04
tEP".
5. Press the [ ] or [ ] key to set the difference be-
tween HX751 display and the calibrated thermom-
eter.
For example, if the HX751 display shows "68.0 °F" and
the (calibrated) thermometer indicates "65.3 °F", set the temperature off-
set to "–2.7 °F".
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.

6.15 STROBE LIGHT

The STROBE feature utilizes the high-intensity strobe LED on the front of the
HX751 as a visual distress beacon. The default setting of the Strobe is on
continuously, however this may be changed to so the LED blinks the interna-
tionally-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.
6.15.1 CHANGE TO SETUP
To select the Strobe light to blink SOS be on continuously use the procedure
below.
1. Turn the transceiver off.
2. Hold down the [ SQL ] key, and then turn on the transceiver while still hold-
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