Owner manual

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