TCAS791
Operating Instructions
Pilot’s Guide 2-7
Table 2-1. Controls and Indicators (Continued)
No Description
–
OFF SCALE Indicator
Some alternate displays display the words OFF SCALE when an
out of range TA occurs. This indicator is in addition to an out of
range TA symbol (amber semicircle).
–
“Traffic Traffic ”
This aural component of a traffic advisory is announced once over
the cockpit speakers or headset when a TA aircraft is first detected.
–
“TCAS Test Passed”
This message is announced over the cockpit speakers or headset
after the TCAS791 has passed an operator-initiated self test.
–
“TCAS Test Failed”
This message is announced over the cockpit speakers or headset
after the TCAS791 has failed an operator-initiated self test.
Available Display Ranges* Range Distance From Own Aircraft
On The Ground In The Air Rings to Range Ring
5 nmi 5 nmi inner 2 nmi
outer 5 nmi
10 nmi 10 nmi inner 2 nmi
middle 5 nmi
outer 10 nmi
20 nmi inner 5 nmi
middle 10 nmi
outer 20 nmi
Figure 2-2. Display Ranges on the CD605
*When used with
an alternate dis-
play, the CD605
will take on the dis-
play ranges of the
alternate display.
