Textron Cessna 172R, Pilot Operating Handbook

Page: 353 / 500

CESSNA
MODEL 172R
SECTION
9
- SUPPLEMENTS
SUPPLEMENT
1 - FAA APPROVED
{
Another push of the mode button will cause the NAV display
to
go
from
the
ACTIVE/BEARING format
to
the
ACTIVE/RADIAL format. In the RADIAL mode, the frequency
inc/dec knobs channel the ACTIVE frequency window and
depressing the frequency transfer button will
cause
the
ACTIVE frequency
to
be placed in blind
storage
and the
STANDBY frequency (in blind storage)
to
be displayed in the
ACTIVE window display.
In radial
mode of operation, the right
hand window
of
NAV display shows the radial FROM the
station. When a
too weak or invalid
VOR signal is received
the display flags (dashes).
Another push of the mode button will cause the unit
to go
into
the TIMER mode. When the unit is turned
on,
the elapsed
timer (ET) begins counting upwards
from
zero. The timer can
be stopped and
reset to
zero
by pushing the NAV
frequency
transfer button for 2
seconds or more causing the ET on the
display
to flash.
In this
state,
the timer can be
set
as a
countdown timer or the elapsed timer can be restarted. The
countdown timer is
set
by using the NAV frequency inc/dec
knobs
to set
the desired time and
then
pushing the NAV
frequency transfer button
to start
the timer. The large knob
selects
minutes, the small knob in the "in" position selects
10
second intervals, and the small knob in the "out" position
selects individual
seconds. After the
countdown
timer reaches
zero, the
counter
will begin
to count
upwards indefinitely while
flashing
for the first 15 seconds. When the elapsed timer is
reset
to
zero it may be restarted
again by momentarily
pushing the NAV frequency transfer button.
8. NAV/VOLUME CONTROL (PULL IDENT) - Adjusts volume of
navigation receiver
audio. When the knob is pulled
out,
the
Ident
signal plus voice may be heard. The volume of
voice/ident can be adjusted by turning this knob.
Figure 1. Bendix/King
KX
155A VHF NAV/COMM with Kl
208 or Kl
209A Indicator Head (Sheet 5 of 7)
Dec
2/96 S1-9
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