Dynon Avionics SkyView HDX Series, Руководство по обслуживанию, Страница: 123 / 128

SkyView HDX System General Maintenance Manual, Revision F Page | 123
SETUP > AUTO ALT/GND > AUTOMATIC (AIR DATA). In this mode, in the XPNDR
menu, the GND button does not appear, and the ALT button will not change mode unless
you are in flight.
2. Some aircraft may be equipped with a squat switch for Transponder mode control; before
changing AUTO ALT/GND, record which squat switch configuration is set. You will need
this information to restore AUTO ALT/GND to this setting after Transponder testing is
complete.
3. To be able to manually switch the Transponder between ALT and GND mode, you must
temporarily reconfigure the transponder: SETUP MENU > TRANSPONDER SETUP >
AUTO ALT/GND > NONE > EXIT (button).
4. The Transponder can now be manually switched to ALT and GND modes: XPNDR > ALT
and XPNDR > GND.SV-ADSB-472 ADS-B IN Receiver.
33)
34) After transponder testing is complete, remember to return the transponder to its
normal configuration: SETUP MENU > TRANSPONDER SETUP > AUTO ALT/GND
> AUTOMATIC (AIR DATA).
9.9.2 Manipulating Altitude
If the test on your Transponder requires manipulating the static pressure, be sure to manipulate
static pressure only aft
er activating SkyView HDX’s pitot/static test mode. Pitot/static test mode
is accessed via SETUP MENU > HARDWARE CALIBRATION.
Connect Pitot and Static to the same test pressure altitude, or strange attitude behaviors may
occur.
9.10 Compass Calibration
Performing an in-flight compass calibration after an on-ground compass calibration can increase
the magnetic heading accuracy of the compass. The best compass performance will be achieved
by performing the on-ground compass calibration, then performing the in-flight compass
calibration. It is not required that the in-flight compass calibration be performed immediately after
the on-ground compass calibration.
The on-ground compass calibration requires pointing the airplane in four (4) directions and
acquiring data at each direction. An accurate method of aligning the airplane with magnetic north,
east, south, and west, such as an airport’s compass rose, is required.
During the compass calibration, the airplane’s configuration and major systems should be in a
state
that resembles flight conditions (i.e. the aircraft’s pitch attitude matches SkyView HDX’s
attitude depiction and all electronic devices used in flight should be on).
9.10.1 On-ground Compass Calibration
1. Turn on SkyView HDX system and allow it to warm up for a minimum of 5 minutes.
2. Using a compass rose, move aircraft into position so that it is convenient to orient it in
four (4) cardinal directions.