User manual
Page 72
Aircraft Operation Manual
Piper Cheyenne I, IA, II, IIXL
For ight simulation use only
tuned and is usually used for identication. The bearing pointer in the KNI 582
RMI and the HSI will be deactivated and immediately turn to the 90° relative po-
sition and remain there during ANT reception. ANT mode is not modeled in this
release.
The ADF mode is selected and annunciated when the „ADF” button is in the de-
pressed position. ADF activates the bearing pointer in the KNI 582 RMI and the
HSI, causing it to move without hesitation to point in the direction of the station
relative to the aircraft heading.
Outside of the United States some stations are unmodulated and use an inter-
rupted carrier for identication purposes. The BFO mode, activated and annun-
ciated when the „BFO” button is depressed, permits the carrier wave and the
associated Morse code identier broadcast on the carrier wave to be heard.
BFO modes are not modeled in this release.
Operating the Timers
The ight timer will always be automatically reset to :00 whenever power is in-
terrupted either by the avionics master switch or the unit’s ON/OFF switch. Ope-
ration of the ight timer is automatic. The timer is started in the moment the
aircraft takes off. It will stop at the moment the aircraft touches down during
landing. The elapsed timer may be reset back to :00 by pressing the SET/RST but-
ton. It will then start counting up again. (NOTE: pressing the SET/RST button will
reset the elapsed timer whether it is being displayed or not.). Resetting the ight
timer is possible on the ground only.
The elapsed timer also has a „count-down” mode. To enter the countdown mode,
the SET/RST button is depressed for about two seconds, or until the „ET” annun-
ciation begins to ash. It is now in the ET set mode, and a time up to 59 minu-
tes, 59 seconds may be preset into the elapsed timer with the concentric knobs.
The preset time will be displayed and remain unchanged until SET/RST is pressed
again, which will start the elapsed timer counting down from the preset time.
When the timer reaches :00 it will start to count up as the display ashes for 15
seconds and an aural alarm, if installed, is activated for about 1 second.
NOTE: The standby frequency which is in memory while ight time or elapsed
time modes are being displayed may be called back by pressing the FRQ button,
then transferred to active use by pressing the FRQ button again.