BendixKing IN-862A System RDR-2100 - Manual (Page 20)

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Effective Date: 9/98 RDR 2100 Pilot's Guide: Rev 1
Theory of Operation
TARGET ALERT
The RDR 2100 system can be configured at installation to include the
Target Alert feature. The purpose of the feature is to alert the pilot to the
presence of a significant weather cell that exists beyond the currently
selected range. For this mode to be active, Wx or WxA mode must be
selected and Vertical Profile must not be selected. The criteria for a
Target Alert is for the cell to be at least red intensity, within ±10˚ of aircraft
heading, a minimum size of 2 NM in range and 2 degrees in azimuth, and
within the range of 80 to 320 NM. When a Target Alert is issued, two red
arcs, separated by a black arc will be displayed at the top of the display
centered on the aircraft heading (see the following figure). Target Alert is
applied to each scan independent of the other when the radar is alter-
nating scans.
Note: Target Alert is not active in the ground map mode.
RDR 2100 PG 3/12/07 3:45 PM Page 16