Standard Horizon HX751 Service Manual page 12

Floating marine transceiver
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Alignment
TX Power Adjustment (Low Power)
 Connect the wattmeter and dummy load to the an-
tenna jack.
 Set the transceiver to CH16 (156.800 MHz) with "Low"
power mode, then turn the transceiver off.
 Press and hold in the PTT, [ SQL ] , [  ] , and [  ] keys
while turn the transceiver on to enter the alignment
mode.
 Press the [  ] or [  ] key to select
L Po xx
L Po xx
the display to "L Po xx
L Po xx
L Po xx"
 Press the [ CLR/WX ] key to enable
adjustment of this Alignment
Mode.
 Press the PTT key to transmit the transceiver, if nec-
essary, press the [  ] or [  ] key to adjust the output
power to 0.8 W (±0.05 W).
 Press the [ CLR/WX ] key to save the new setting.
 Press and hold the [ POWER ( )] key for 2 seconds to
turn the transceiver off.
Tx Deviation Adjustment
 Connect the Radio Tester to the Mic jack, then adjust
the Audio generator output to 50 mVrms at 1 kHz.
 Set the transceiver to CH16 (156.800 MHz) with "Low"
power mode, then turn the transceiver off.
 Press and hold in the PTT, [ SQL ] , [  ] , and [  ] keys
while turn the transceiver on to enter the alignment
mode.
 Press the [  ] or [  ] key to select
nod xx
nod xx".
nod xx
the display to "nod xx
nod xx
 Press the [ CLR/WX ] key to enable
adjustment of this Alignment
Mode.
 Press the PTT key to transmit the transceiver, if nec-
essary, press the [  ] or [  ] key to adjust the devia-
tion to 4.2 kHz (±0.1 kHz).
 Press the [ CLR/WX ] key to save the new setting.
 Press and hold the [ POWER ( )] key for 2 seconds to
turn the transceiver off.
The Alignment is now completely.
12

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