Справочник Пользователя для Narco Avionics Inc AT165
March, 2004
3
BUTTONS FOR ALTERNATE FEATURES
IDENT
Pressing the IDENT button will activate the SPIP (Special Position Identification Pulse) signal for
approximately 20 seconds. This signal will "paint" an instantly identifiable image on the controller’s scope.
This signal must only be used upon request of a "Squawk IDENT" from the controller. Use at any other time
could interfere with another aircraft sending a SPIP. The IDENT legend will appear in the Code window while
the Ident signal is being sent.
VFR
Pressing the VFR button will cause the squawk code to either change from the user entered code to a VFR code
or change back to the user entered code from the currently displayed VFR code. The last used squawk code is
automatically recalled when the unit is cycled off and on.
HOLD
Pressing the HOLD button will enter the Altitude Hold mode and lock the current altitude as the HOLD
altitude. The Altitude display area will now show the altitude difference relative to the HOLD altitude in 100ft
increments. The altitude display area will flash if the Altitude Buffer value is exceeded. Additionally if the audio
alert function has been installed, a warning will be heard. The audio warning will be present only while the unit
is in the Altitude Hold mode. This is a warning only and is not tied to any navigation systems.
Depressing the HOLD button for two seconds or longer will allow the setting of the Altitude Buffer. The
available range is 200ft to 2500ft. Once set, momentarily pressing HOLD again will save this buffer value. The
buffer value will be retained when the unit is powered off. This mode must be exited before other functions can
be accessed. Once started this mode will be exited when it has been inactive for 10 seconds.
FUNC
Pressing the FUNC button cycles the timer display between Flight Timer, Count Up Timer, and Count Down
Timer.
Holding the FUNC button in for 5 seconds or longer will Flip/Flop the left and right display areas. This
function is extremely useful in the unlikely event of an unreadable LCD display. When the unit is turned off it
will always restart with the displays in their default locations.
START/STOP
Pressing the START/STOP button will independently start or stop the Count Up and Count Down timers
depending on which is currently displayed.
CRSR/CLR
When in Flight Timer, depressing the CRSR/CLR button for two seconds will reset the Flight Timer.
When in Count Up Timer, depressing the CRSR/CLR button for two seconds will reset the Count Up Timer.
When in Count Down Timer, with the timer stopped, momentarily pressing the CRSR/CLR button once will
recall the preset count down time. Momentarily pressing this button again will activate the cursor in the timer
window. At this point, changes to the Count Down Timer value can be made by using the Code Selector/Data
Entry knob.
IDENT
Pressing the IDENT button will activate the SPIP (Special Position Identification Pulse) signal for
approximately 20 seconds. This signal will "paint" an instantly identifiable image on the controller’s scope.
This signal must only be used upon request of a "Squawk IDENT" from the controller. Use at any other time
could interfere with another aircraft sending a SPIP. The IDENT legend will appear in the Code window while
the Ident signal is being sent.
VFR
Pressing the VFR button will cause the squawk code to either change from the user entered code to a VFR code
or change back to the user entered code from the currently displayed VFR code. The last used squawk code is
automatically recalled when the unit is cycled off and on.
HOLD
Pressing the HOLD button will enter the Altitude Hold mode and lock the current altitude as the HOLD
altitude. The Altitude display area will now show the altitude difference relative to the HOLD altitude in 100ft
increments. The altitude display area will flash if the Altitude Buffer value is exceeded. Additionally if the audio
alert function has been installed, a warning will be heard. The audio warning will be present only while the unit
is in the Altitude Hold mode. This is a warning only and is not tied to any navigation systems.
Depressing the HOLD button for two seconds or longer will allow the setting of the Altitude Buffer. The
available range is 200ft to 2500ft. Once set, momentarily pressing HOLD again will save this buffer value. The
buffer value will be retained when the unit is powered off. This mode must be exited before other functions can
be accessed. Once started this mode will be exited when it has been inactive for 10 seconds.
FUNC
Pressing the FUNC button cycles the timer display between Flight Timer, Count Up Timer, and Count Down
Timer.
Holding the FUNC button in for 5 seconds or longer will Flip/Flop the left and right display areas. This
function is extremely useful in the unlikely event of an unreadable LCD display. When the unit is turned off it
will always restart with the displays in their default locations.
START/STOP
Pressing the START/STOP button will independently start or stop the Count Up and Count Down timers
depending on which is currently displayed.
CRSR/CLR
When in Flight Timer, depressing the CRSR/CLR button for two seconds will reset the Flight Timer.
When in Count Up Timer, depressing the CRSR/CLR button for two seconds will reset the Count Up Timer.
When in Count Down Timer, with the timer stopped, momentarily pressing the CRSR/CLR button once will
recall the preset count down time. Momentarily pressing this button again will activate the cursor in the timer
window. At this point, changes to the Count Down Timer value can be made by using the Code Selector/Data
Entry knob.