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2. RADAR, CHART RADAR OPERATION
2-47
Restrictions
The followings are the restrictions of the dual radar function.
A REF (reference) mark can be entered on the display of the main radar but not the
external radar.
TT targets can be acquired manually. [TT SELECT] is set to manual acquisition.
The reference position is set to [CCRP] (see section 2.33). Set the same CCRP po-
sition between two radars at the time of installation.
[ECHO AREA] is set to [CIRCLE] (see section 2.38).
The following functions are not available in the dual radar mode.
Performance monitor TT simulation mode
• SART • Icing prevention
• Tune initialize • Interswitch