System Controls And Displays; Traffic Display Symbols - BOMBARDIER LEARJET 40 Pilot's Manual

Pilot's Manual

SYSTEM CONTROLS AND DISPLAYS

Selection of the TA/RA mode is accomplished through the transponder
window on either RMU main radio tuning page. After the cursor is
placed over the transponder mode line, the desired mode is selected
with the RMU tuning knob. The transponder selection options for
TCAS II equipped aircraft will be STANDBY, ATC ON, ATC ALT and
TA/RA. The selected TCAS mode will be annunciated in the top left
corner of the TCAS display. The auto or manual mode can be selected
on the ATC/TCAS CONTROL PAGE of the RMU. This page is accessed
through the RMU PAGE MENU page. When AUTO is selected, traffic
targets display only when a TA or RA target condition exists. When
manual is selected, all traffic targets within the viewing airspace are
displayed. In either the MAP or PLAN format display, the TCAS TA
display is selected by pushing the TCAS menu button on the MFD main
menu bezel controller. If the TCAS triggers an RA, and TCAS display is
selected OFF, the main menu is activated on the MFD. This allows flight
crew selection of TA displays with a single button push. This display is
in addition to the resolution advisory on the VSI display on the PFD.

TRAFFIC DISPLAY SYMBOLS

TCAS II will display four different traffic symbols. The type of symbol
selected by TCAS is based on the intruder's location and closing rate.
The symbols change shape and color to represent increasing levels of
urgency. The traffic symbols may also have an associated altitude tag
which shows relative altitude in hundreds of feet, indicating whether
the intruder is climbing, flying level or descending. A + sign and
number above the symbol means the intruder is above your altitude.
A - sign and number beneath indicates it is below your altitude. A trend
arrow appears when the intruder's vertical rate is 500 feet per minute
or greater. The symbology displayed on the PFDs and MFD is as fol-
lows:
(1) NON-THREAT ADVISORY (OA) TRAFFIC — An
open cyan diamond indicates that an intruder's rela-
tive altitude is greater than ± 1200 feet, or its distance is
beyond 6 nm range. It is not yet considered a threat.
(2) PROXIMITY INTRUDER (PA) TRAFFIC — A filled
cyan diamond indicates that the intruding aircraft is
within ± 1200 feet and within 6 nm range, but is still
not considered a threat.
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PM-132A