BendixKing CAS 67A ACAS II - Manual (Page 61)

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the inner knob selects the traffic display range in nm (nautical miles).
this knob can select 3, 5, 10, 15, 20 or 40 nm range on the tCaS
traffic display. the range is displayed in the display window during
range selection.
Note: The Range knob is continuous rotary and does not roll over or stop.
the traffic display may have another range select source. the select-
ed tCaS range is always annunciated on the traffic display. the
range annunciated is the maximum displayed range to the front of the
aircraft. the range to the rear is either full annunciated range or 1/2
the annunciated range, depending on the display. the selected range
has no effect on the tCaS logic giving tas or ras.
When the inner knob is pushed, the traffic advisory altitude
(above/norm/Below) display limits are sequentially selected. there
are three display levels to choose from.
ABOVE; 9000 feet above and 2700 feet below, is typically used dur-
ing the climb phase of flight. a "^" (carat) will be annunciated in the
display window.
NORMAL; 2700 feet above and 2700 feet below, is used during the
enroute phase of flight. Both the "^" and "v" (carats) will be annunci-
ated in the display window.
BELOW; 2700 feet above and 9000 feet below, is used during the
descent phase of flight. a "v" (carat) will be annunciated in the dis-
play window.
the above/Below selection has no effect on the tCaS logic giving
tas and ras.
Rev 3 4/13 CAS 67A/67B ACAS II Pilot’s Guide
Controls and Displays
006-18201-0000-r003 CaS 67a_67B aCaS Pilots Guide 2013 0410_CaS 67a 4/10/13 11:11 aM Page 55