JRC JMA-993-SA Instruction Manual page 180

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Automatic Setting Mode (System Start)
See sections 3.4 "Basic Operations" and 4 "Measurement of Range and Bearing" for descriptions
of operation.
Fig. 5-1 Mode Setting at System Start
Mode Initial setting
Refer to Section
DISPLAY MODE
RM (relative motion)
3.4
ACQUIRE
AUTO OFF 5.3
TRIAL OFF
5 . 7
GUARD ZONE OFF 3 . 4 , 5 . 6
Setting Range Scale: (RANGE SCALE)
The ARPA functions can operate on all range scales. Usually, set the range between 1.5 to 24 NM
depending on the area of operation.
Attention: The ARPA acquisition range is 0.1 to 32 NM.
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