Updates & Downloads

GDU 4xx Cockpit Display (Microsoft Windows Installer) software version 7.00

as of February 11, 2019

Download (28.10 MB)

View installation instructions and system requirements

Change History

Changes made from version 6.30 to 7.00:

Add ability to temporarily toggle map orientation by touching north arrow symbol
Add ability to share internal GPS navigation data with G5
Add support for GSA 28 servos used for pitch trim and roll trim
Add support for sky pointer roll indicator display on PFD
Add support for Kavlico P4055-5020 pressure sensors
Add support for GAD 27 absolute flap position mode
Add option to sequence flight plan legs based on distance from next waypoint
Add fault indication when GAD 27 is not receiving required power
Add configuration page for general system options
Add configuration page for PFD options
Add configuration option to prevent changes to AFCS configuration and AOA calibration when not in config mode
Add configuration option to display pairs of fuel quantity gauges separately
Add configuration option to disable PFD pitch adjustment
Add configuration option to disable flight director attention tones
Add support for RS-232 interface to GMA 342/345
Add ability to save and restore configuration data using SD card
Add AHRS diagnostic page
Improve G5 interface
Improve Connext flight plan interface
Improve weight and balance envelope editing
Improve runway label display on map
Improve airport runway information display
Improve traffic target ground track numeric display
Improve UMA 1EU50A pressure sensor conversion
Improve flight plan forced leg activation
Improve flight plan source selection at powerup
Improve display of radar coverage data
Improve minimums bug on round altimeter gauge
Improve user waypoint page
Improve proximity waypoint page
Improve position edit page
Improve gear warning logic for turbine aircraft
Improve radial engine cylinder temperature display
Improve operation of ESP controls on MFD
Change checklist page to preserve progress when page is closed
Change audio alert when automatically engaging autopilot due to ESP activity
Change flight director attention tone sound to be distinct from disengage tone
Change display of AFCS trim and airspeed annunciations
General improvements to system operation
Includes update to audio data version 2.50
Includes update to G5 software version 6.00
Includes update to G5 boot block software version 2.20
Includes update to GAD27 software version 2.30
Includes update to GAD27 boot block software version 2.30
Includes update to GAD29 software version 3.10
Includes update to GAD29 boot block software version 3.10
Includes update to GDL5X software version 2.12
Includes update to GEA24 software version 3.50
Includes update to GEA24 boot block software version 2.20
Includes update to GI260 software version 2.80
Includes update to GI260 boot block software version 2.20
Includes update to GMA245 software version 2.50
Includes update to GMA245 boot block software version 2.30
Includes update to GMC507 software version 2.80
Includes update to GMC507 boot block software version 2.30
Includes update to GPS20A software version 2.30
Includes update to GPS20A boot block software version 2.10
Includes update to GSA28 software version 4.30
Includes update to GSA28 boot block software version 2.20
Includes update to GSU25/B software version 3.80
Includes update to GSU25/B boot block software version 2.20
Includes update to GTR20/200 software version 3.30
Includes update to GTR20/200 boot block software version 2.30
Includes GDL39 software version 4.81
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMU11 software version 2.00
Includes GMU11 boot block software version 2.00
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)

Changes made from version 6.20 to 6.30:

Additional improvements to VFR GPS data output to transponder without a certified GPS source
Improve display update processing
General improvements to system operation
Includes G5 software version 5.60
Includes GAD27 software version 2.20
Includes GAD29 software version 3.00
Includes GDL39 software version 4.81
Includes GDL5X software version 2.11
Includes GEA24 software version 3.40
Includes GI260 software version 2.70
Includes GMA245 software version 2.40
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMC507 software version 2.50
Includes GMU11 software version 2.00
Includes GPS20A software version 2.20
Includes GSA28 software version 4.10
Includes GSU25 software version 3.70
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)
Includes GTR20/200 software version 3.20

Changes made from version 6.10 to 6.20:

Add support for GTN vertical navigation guidance
Add display of VNAV target altitude to PFD (GDU 46x only)
Add annunciation of secondary armed vertical flight director mode
Add VFR annunciation to HSI
Add Navigation configuration page
Add configuration for VNAV deviation scale
Add EFIS/Airdata 2 ARINC 429 output format
Add GPS AGL height sentence to Text Out RS-232 format
Add configuration option to invert display of elevator trim gauge when using Vertical Power position data
Change autopilot airspeed annunciation display
Change default name for coolant temperature gauge
Improve interface with GNC 300XL and similar navigators
Improve flight director command display across multiple displays that use different attitude sources
Improve display of Mogas availability
Improve airspeed comparison between multiple GSU 25Bs
Improve Rotax FADEC caution/warning annunciation
Improve Connext data interface
General improvements to system operation
Includes update to G5 software version 5.60
Includes update to GDL39 software version 4.81
Includes update to GEA24 software version 3.40
Includes update to GMC507 software version 2.50
Includes update to GTR20/200 software version 3.20
Includes GAD27 software version 2.20
Includes GAD29 software version 3.00
Includes GDL5X software version 2.11
Includes GI260 software version 2.70
Includes GMA245 software version 2.40
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMU11 software version 2.00
Includes GPS20A software version 2.20
Includes GSA28 software version 4.10
Includes GSU25 software version 3.70
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)

Changes made from version 6.00 to 6.10:

Add support for custom RPM input configuration for frequencies up to 50 kHz
Add additional support for custom fuel flow input configuration for frequencies under 2 kHz
Improve GEA 24 RPM2 discrete input
Improve Rotax FADEC fuel pressure offset calibration
General improvements to system operation
Includes update to G5 software version 5.40
Includes update to GEA24 software version 3.30
Includes GAD27 software version 2.20
Includes GAD29 software version 3.00
Includes GDL39 software version 4.80
Includes GDL5X software version 2.11
Includes GI260 software version 2.70
Includes GMA245 software version 2.40
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMC507 software version 2.30
Includes GMU11 software version 2.00
Includes GPS20A software version 2.20
Includes GSA28 software version 4.10
Includes GSU25 software version 3.70
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)
Includes GTR20/200 software version 2.90

Changes made from version 5.90 to 6.00:

Add enhanced EIS data messages to Text Out RS-232 format
Add ability to use GEA 24 RPM2 input as an additional discrete input
Add additional CAS messages to data log file
Add support for Rotax FADEC fuel pressure calibration and adjustment for manifold pressure
Improve map update rate
Improve GMC 30x annunciator light processing
Improve heading bug synchronization between displays
Improve visibility of HSI heading pointer
Improve traffic display
Improve Connext data processing
Improve GDL 39 data processing
Improve AOA/stall warning tone output
Improve display backlight adjustment
Improve CO detector cabin altitude display
Change Rotax FADEC oil pressure to use compensated (gauge) value
General improvements to system operation
Includes update to G5 software version 5.30
Includes update to GAD29 software version 3.00
Includes update to GDL5X software version 2.11
Includes update to GEA24 software version 3.20
Includes update to GMC507 software version 2.30
Includes GAD27 software version 2.20
Includes GDL39 software version 4.80
Includes GI260 software version 2.70
Includes GMA245 software version 2.40
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMU11 software version 2.00
Includes GPS20A software version 2.20
Includes GSA28 software version 4.10
Includes GSU25 software version 3.70
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)
Includes GTR20/200 software version 2.90

Changes made from version 5.70 to 5.90:

Add option to display GPS altitude field in data bar
Improve GSA 28 data processing in non-certified installations
Improve Connext Bluetooth data processing
Improve UL Power FADEC data processing
General improvements to system operation
Includes update to G5 software version 5.20
Includes update to GMC507 software version 2.20
Includes update to GSA28 software version 4.10
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GDL39 software version 4.80
Includes GDL5X software version 2.10
Includes GEA24 software version 3.10
Includes GI260 software version 2.70
Includes GMA245 software version 2.40
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMU11 software version 2.00
Includes GPS20A software version 2.20
Includes GSU25 software version 3.70
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)
Includes GTR20/200 software version 2.90

Changes made from version 5.60 to 5.70:

Add option to display roll reference markers for standard-rate turn on PFD
Add option for QWERTY keyboard layout
Add support for flight director TRK mode
Add support for hectopascal air pressure units
Add support for new GTS 8xx RS-232 interface format
Add support for 24V trim motor voltage
Add support for GMC 507 autopilot mode controller
Add display of AFCS preflight test status
Change flight director VOR, LOC, and GS modes to operate without navigation database
Change appearance of PIREP symbols
Change maximum limit for Type K thermocouple sensors
Improve traffic target information display
Improve visibility of aircraft symbol on chart page
Improve data log time offset value when UTC is selected
Improve flight plan editing
Improve weather text report time display
Improve display of winds aloft
Improve com radio frequency search page
Improve GSU 25B true airspeed display
Improve EGT/TIT display when Celsius units are selected
General improvements to system operation
Includes update to G5 software version 5.10
Includes update to GDL5X software version 2.10
Includes update to GMC507 software version 2.10
Includes update to GSA28 software version 4.00
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GDL39 software version 4.80
Includes GEA24 software version 3.10
Includes GI260 software version 2.70
Includes GMA245 software version 2.40
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMU11 software version 2.00
Includes GPS20A software version 2.20
Includes GSU25 software version 3.70
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)
Includes GTR20/200 software version 2.90

Changes made from version 5.50 to 5.60:

Add ability to select Video In page for MFD split screen display
Add ability to create user waypoints at present coordinates by touching aircraft symbol on map
Add ability to quickly toggle full/split-screen display by pressing Back key
Add ability to hide SXM Audio page
Add message to indicate when SD card format is incompatible
Change minimum displayable airspeed from GSU25 from 30 mph to 20 mph when mph units are configured
Change Text Out RS-232 format to support manifold pressure values up to 99.9 inches
Change map symbol for visual reporting points
Improve user magnetic variation data entry
Improve display of map heading line
Improve traffic audio annunciations
General improvements to system operation
Includes update to G5 software version 4.00
Includes update to GDL5X software version 2.07
Includes update to GMA245 software version 2.40
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GDL39 software version 4.80
Includes GEA24 software version 3.10
Includes GI260 software version 2.70
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMU11 software version 2.00
Includes GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.70
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)
Includes GTR20/200 software version 2.90

Changes made from version 5.40 to 5.50:

Improve traffic data sharing process in multi-display systems
Improve VNAV processing for direct-to navigation
General improvements to system operation
Includes G5 software version 3.20
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GDL39 software version 4.80
Includes GEA24 software version 3.10
Includes GI260 software version 2.70
Includes GMA245 software version 2.30
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMU11 software version 2.00
Includes GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.70
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)
Includes GTR20/200 software version 2.90

Changes made from version 5.30 to 5.40:

Add support for GDL 5x SXM and ADS-B receivers
Add option to enable or disable synthetic vision airport signs
Add Mach number label (205) to EFIS/Airdata ARINC 429 output
Add support for Rotax FADEC manifold air temperature
Add ability to display 1 or 2 data bar rows on GDU 470
Improve GDU 470 split-screen display layout
Improve Connext flight plan transfer to GNS navigator
Improve selection of backup versus primary ADAHRS data sources when aircraft is on the ground
Improve altitude display response following baro setting adjustment when on the ground
Improve alert acknowledgement when touching autopilot status field on PFD
Improve airspeed display for GSU 25B
Improve flight log date/time display
Improve engine gauge display
Improve video input page
Improve amps calibration page
Improve Bluetooth interface
Change Nearest Airport page to indicate suggested best airport
Change flap position calibration to support range of +/- 100 units
Change Charts page to remember VFR/IFR chart selection between power cycles
General improvements to system operation
Includes update to G5 software version 3.20
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GDL39 software version 4.80
Includes GEA24 software version 3.10
Includes GI260 software version 2.70
Includes GMA245 software version 2.30
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMU11 software version 2.00
Includes GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.70
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)
Includes GTR20/200 software version 2.90

Changes made from version 5.20 to 5.30:

Improve engine page layout to handle multiple data field configurations
General improvements to system operation
Includes update to G5 software version 3.10
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GDL39 software version 4.80
Includes GEA24 software version 3.10
Includes GI260 software version 2.70
Includes GMA245 software version 2.30
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMU11 software version 2.00
Includes GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.70
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)
Includes GTR20/200 software version 2.90

Changes made from version 5.10 to 5.20:

Add support for GDU 470 7'' portrait display
Add support for GMU 11 magnetometer
Add support for Rotax 915iS engine FADEC interface
Add support for ULPower engine FADEC interface
Add support for Nearest Airports inset window on GDU 46x PFD
Add ability to edit comment text for user waypoints
Add option for half-volume music muting for GTR 20/200
Add support for discrete input on GTR 20/200 to toggle COM radio MON mode
Add support for displaying fuel economy in nm/gal units
Add configuration option to hide on-screen controls for panel-mounted COM radios
Add display of Rotax FADEC maintenance status information in configuration mode
Change ESP to allow pitch, roll, high airspeed, and Mach limit protection to operate when AGL height is unknown
Change GMA 245R to enable COM MIC 1 and pilot to copilot intercom when GDU displays are inoperable
Improve GPS data processing
Improve Connext flight plan transfer to GNS navigator
Improve COM radio RS-232 configuration on PFD2/MFD2 displays
Improve GTX x5R/3x5 transponder RS-232 port configuration
Improve engine gauge display for twin-engine applications
Improve GMA 245/245R music volume
General improvements to system operation
Includes update to G5 software version 3.00
Includes update to GEA24 software version 3.10
Includes update to GMA245 software version 2.30
Includes update to GSU25 software version 3.70
Includes update to GSU73 software version 3.70
Includes update to GTR20/200 software version 2.90
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GDL39 software version 4.80
Includes GI260 software version 2.70
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMU11 software version 2.00
Includes GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU73 IGRF database version 1.03 (Base Year 2015)

Changes made from version 5.00 to 5.10:

Add ability to configure GEA 24 general-purpose (GP) inputs as additional discrete inputs
Add discrete input configuration to swap frequencies on selected COM radio (requires GMA 245/245R)
Add option to configure distance to destination (DISTD) field in data bar
Change flight director TO mode to always disengage autopilot when activated
Change flight director GA mode to disengage autopilot if minimum airspeed is not configured
Change weight & balance configuration to allow weights up to 99999 units
Improve fuel calculator +/- buttons to more easily enter quantity of fuel added or subtracted
Improve GDU 46x MFD page navigation display when split screen is on right side
Improve engine page display
Improve map airspace labels
Improve transponder status display
Improve Bluetooth & Connext interface
General improvements to system operation
Includes update to G5 software version 2.60
Includes update to GEA24 software version 3.00
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GDL39 software version 4.80
Includes GI260 software version 2.70
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMA245 software version 2.20
Includes GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.60
Includes GSU73 software version 3.60
Includes GSU73 IGRF database version 1.03 (Base Year 2015)
Includes GTR20/200 software version 2.80

Changes made from version 4.90 to 5.00:

Add display of airspace altitudes on map
Add support for multi-engine monitoring using two GEA 24 LRUs
Add support for single engines with 7-12 cylinders using two GEA 24 LRUs
Add support for additional discrete inputs on second GEA 24
Add ability to configure fuel economy units separately from fuel quantity
Add setup options to control appearance of airport and navaid facility names on map
Improve engine gauge number display for Bar and atmosphere units
Improve FADEC engine power and time display
Change to display ADS-B airport NOTAM data when SXM weather source is selected
General improvements to system operation
Includes update to G5 software version 2.50
Includes update to GDL39 software version 4.80
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GEA24 software version 2.90
Includes GI260 software version 2.70
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMA245 software version 2.20
Includes GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.60
Includes GSU73 software version 3.60
Includes GSU73 IGRF database version 1.03 (Base Year 2015)
Includes GTR20/200 software version 2.80

Changes made from version 4.70 to 4.90:

Add AGL height data field
Add support for Bluetooth interface to Virb Ultra
Improve display of GDL 39 pressure altitude on datalink info page
Improve GEA 24 RPM signal processing
Improve support for pre-programmed supplemental map cards
Improve display of road labels on map
Improve GSU 73 software update process
General improvements to system operation
Includes update to GEA24 software version 2.90
Includes update to GSU 73 IGRF database version 1.03 (Base Year 2015)
Includes G5 software version 2.40
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GDL39 software version 4.70
Includes GI260 software version 2.70
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMA245 software version 2.20
Includes GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.60
Includes GSU73 software version 3.60
Includes GTR20/200 software version 2.80

Changes made from version 4.60 to 4.70:

Add display of user waypoint comment text
Add ability to access airport frequency list by pushing knob when WPT page Freqs tab is selected
Add config mode option to disable automatic PFD declutter when aircraft is in an unusual attitude
Increase maximum current supported by user-calibrated shunt current sensors
Improve GPS LRU data processing
Improve CO detector data processing
General improvements to system operation
Includes G5 software version 2.40
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GDL39 software version 4.70
Includes GEA24 software version 2.70
Includes GI260 software version 2.70
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMA245 software version 2.20
Includes GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.60
Includes GSU73 software version 3.60
Includes GTR20/200 software version 2.80

Changes made from version 4.40 to 4.60:

Add support for GTX 35R/45R, 335/345, and 335R/345R transponders
Add display of Rotax FADEC throttle position when engine is not running
Add optional ability to disable GMA 245/245R Bluetooth for troubleshooting purposes
Add data field for cabin altitude (requires CO detector)
Add display of SXM composite NEXRAD data
Add terrain status icon to map page
Add TargetTrend(TM) traffic motion vectors to map page
Add data field for ISA temperature deviation
Improve flight director GPS mode when external IFR GPS is navigating a heading leg
Improve number display for user-calibrated pressure inputs
Improve ADS-B traffic status display
Improve Connext interface
Improve user-customized RPM input configuration options
Improve Connext traffic status display
Improve Connext RS-232 interface status display
Improve flight plan transfer support via Connext to GTN products
General improvements to system operation
Includes update to G5 software version 2.40
Includes GAD27 software version 2.20
Includes GAD29 software version 2.30
Includes GDL39 software version 4.70
Includes GEA24 software version 2.70
Includes GI260 software version 2.70
Includes GMA245 audio software version 2.20
Includes GMA245 Bluetooth software version 2.00
Includes GMA245 software version 2.20
Includes GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.60
Includes GSU73 software version 3.60
Includes GTR20/200 software version 2.80

Changes made from version 4.30 to 4.40:

Add option to display attitude using round gauge presentation (GDU 46x only)
Add option to allow quicker adjustment of audio panel volume settings
Add support for MS28034 / MIL-T-7990 RTD temperature sensor
Add support for optional backup RS-232 connection to GEA 24
Add support for altimeter and surface wind fields in data bar
Add ability to select runways and charts by pressing the knob when reviewing an airport
Add menu option to Direct To page to navigate to a specific set of coordinates
Add menu option to Info page to mark a new user waypoint at the present position
Improve user interface for creating a user waypoint
Improve LRU software update process
Improve interface to GTS 8xx traffic system
Improve ETE display when using direct-to navigation with external GPS navigator
Improve PFD wind calculation
Improve Connext information display on Datalink Info page
Improve engine temperature displays when Celsius units are selected
Improve GPS data processing
Improve flight plan import procedure
General improvements to system operation
Includes update to G5 software version 2.30
Includes update to GAD27 software version 2.20
Includes update to GMA245 audio software version 2.20
Includes update to GMA245 software version 2.20
Includes update to GPS20A software version 2.20
Includes update to GSU25 software version 3.60
Includes update to GSU73 software version 3.60
Includes GAD29 software version 2.30
Includes GDL39 software version 4.70
Includes GEA24 software version 2.70
Includes GI260 software version 2.70
Includes GMA245 Bluetooth software version 2.00
Includes GSA28 software version 3.20
Includes GTR20/200 software version 2.80

Changes made from version 4.20 to 4.30:

Add optional ability to toggle PFD knob control action by pressing the knob
Add ability to access demo mode by holding Direct-To key during power-up
Add carbon monoxide level to data log file
Add ability to rename a saved flight plan by touching the name field
Improve highlighting of airports on map and chart pages
Improve map operation when inserting/ejecting SD cards
Improve ability to highlight Class E airspace on the map
Improve appearance of selected altitude intercept arc
Improve display of TAS-adjusted Vne
Improve fuel flow and quantity displays when Liters are selected
Improve multi-ADAHRS data comparison logic
Improve GPS data processing
Improve Bluetooth setup
Change name of airport charts tab on WPT and airport review page to 'Charts'
Change COM radio configuration to allow GTR 20 internal intercom to be enabled in dual-radio installations with no audio panel
Change Nearest VORs page to identify TACAN and DME-only navaids
Change Lean Assist to use EGT instead of TIT for turbocharged engine applications
Change EGT and TIT to display as round gauges when possible for turbine engine applications
General improvements to system operation
Includes update to GDL39 software version 4.70
Includes G5 software version 2.20
Includes GAD27 software version 2.10
Includes GAD29 software version 2.30
Includes GEA24 software version 2.70
Includes GI260 software version 2.70
Includes GMA245 software version 2.10
Includes GMA245 Bluetooth software version 2.00
Includes GMA245 audio software version 2.10
Includes GPS20A software version 2.10
Includes GSA28 software version 3.20
Includes GSU25 software version 3.50
Includes GSU73 software version 3.50
Includes GTR20/200 software version 2.80

Changes made from version 4.10 to 4.20:

Add support for G5 standby flight display
Add support for GMA 245/245R audio panels
Add support for Garmin navigation database
Add support for UMA 1A3C-4 RPM sensor
Add configurable data field for ram air temp (RAT)
Improve Connext interface
Improve AOA display
Improve GPS data sharing between displays
General improvements to system operation
Includes update to G5 software version 2.20
Includes update to GAD27 software version 2.10
Includes update to GAD29 software version 2.30
Includes update to GEA24 software version 2.70
Includes update to GMA245 software version 2.10
Includes update to GMA245 Bluetooth software version 2.00
Includes update to GMA245 audio software version 2.10
Includes update to GSA28 software version 3.20
Includes update to GSU73 software version 3.50
Includes update to GTR20/200 software version 2.80
Includes GDL39 software version 4.60
Includes GI260 software version 2.70
Includes GPS20A software version 2.10
Includes GSU25 software version 3.50

Changes made from version 4.00 to 4.10:

Add support for UMA N1EU70D 0-70 PSI differential fuel pressure sensor
Add support for configuring Vne in terms of true airspeed using a different value from indicated Vne
Add support for high-resolution SXM TFR data
Add support for ETE To Destination and ETA At Destination fields in data bar
Add menu option to transponder page to test Mode S ALT reporting when on the ground
Add option to configure external light flash priority
Improve Connext Bluetooth interface
Improve weather data processing
Improve contrast when editing numeric values for PFD bugs and baro setting
Improve configuration pages
Improve gauge display for turbine engine torque and RPM
Improve display of highlighted traffic targets
Improve GPS data sharing between displays
General improvements to system operation
Includes update to GSU25 software version 3.50
Includes GAD27 software version 2.00
Includes GAD29 software version 2.20
Includes GDL39 software version 4.60
Includes GEA24 software version 2.60
Includes GI260 software version 2.70
Includes GPS20A software version 2.10
Includes GSA28 software version 3.00
Includes GSU73 software version 3.40
Includes GTR20/200 software version 2.70

Changes made from version 3.90 to 4.00:

Add support for GAD 27 electrical control system
Add config mode option to remove knowledge of previously installed MFD2 or PFD2 display
Add option to hide map field on split-screen flight plan page (GDU 46x only)
Add ability to create a user waypoint from Nearest Waypoints page
Add ability to create a user waypoint from User tab of Select Waypoint page
Add ability to acknowledge CAS messages by touching the CAS message area
Add option to display estimated time to VNAV (ETV) field in data bar
Add heading bug reference line to inset map, review pages, and traffic page
Improve Bluetooth communication and Connext interface
Improve CAS message display when there are a large number of messages
Improve selected altitude intercept arc
Change Flight Log page to appear on PFD1 display in a multi-display system
General improvements to system operation
Includes update to GSU25 software version 3.40
Includes GAD27 software version 2.00
Includes GAD29 software version 2.20
Includes GDL39 software version 4.60
Includes GEA24 software version 2.60
Includes GI260 software version 2.70
Includes GPS20A software version 2.10
Includes GSA28 software version 3.00
Includes GSU73 software version 3.40
Includes GTR20/200 software version 2.70

Changes made from version 3.80 to 3.90:

Improve Bluetooth device authentication process
Improve engine page layout
Improve flight log interaction with engine timers when aircraft is on the ground
Improve user-defined manifold pressure gauge numeric data display
Allow quicker access to COM radio volume
General improvements to system operation
Includes update to GI260 software version 2.70
Includes GAD29 software version 2.20
Includes GDL39 software version 4.60
Includes GEA24 software version 2.60
Includes GSA28 software version 3.00
Includes GSU25 software version 3.30
Includes GSU73 software version 3.40
Includes GTR20/200 software version 2.70

Changes made from version 3.70 to 3.80:

Add support for GPS 20A remote WAAS GPS receiver
Add support for GMC 307 mode control panel
Add support for GSU 25B ADAHRS
Add ability to set OBS navigation for internal GPS navigation source by touching CRS field on PFD
Add ability to change 'COM mutes ICS' and 'COM 3D audio' settings in normal mode
Add ability to access airport review page from COM frequency lookup page
Add ability to calibrate bus current inputs in millivolts per amp
Add ability to configure altitude alert volume level separately
Add Fuel Over Destination data bar field
Add Clear button to fuel flow calibration page fuel quantity value keyboards
Add configurable option to reset fuel-used value on first engine start or takeoff following a power cycle
Change ESP auto-LVL mode to be disarmed below 1500 feet AGL
Change fuel calc engine page Reset button to set only the fuel-used value to zero without changing fuel-remaining value
Improve map display when navigating to a user waypoint using external GPS navigation source
Improve RS-232 interface to GTS 8xx
Improve flight director operation for ILS approaches with unusual glideslope angles
Improve filtering of engine gauges
Improve landing gear warning alert logic
Improve NAV frequency tuning in systems with multiple radios or navigation sources
Improve flight log date display
Improve gauge precision for custom user analog voltage gauges
Improve layouts of fuel quantity reminder page and engine page fuel calculator tab
General improvements to system operation
Includes update to GDL39 software version 4.60
Includes update to GSA28 software version 3.00
Includes update to GSU25 software version 3.30
Includes GAD29 software version 2.20
Includes GEA24 software version 2.60
Includes GI260 software version 2.60
Includes GSU73 software version 3.40
Includes GTR20/200 software version 2.70

Changes made from version 3.60 to 3.70:

Add options to customize flight director altitude hold mode behavior
Add icons to main menu to quickly access com radio and transponder controls
Add ability to toggle display mode by holding Back key
Add ability to transfer active flight plan to GTN via Connext RS_232 interface
Add support for G-meter inset window on full-screen PFD on GDU 46x
Add support for three-display system with one PFD and two MFDs
Add support for UMA 1EM2K sensor for fuel pressure and miscellaneous pressure
Add display setup option to show AOA field on PFD when an external AOA indicator is present
Add ability to mute audible AOA warnings when Mute button on GI260 is pressed
Add ability to select transponder IDENT by holding knob while transponder page is visible
Add option to show outside air temperature in data bar
Change user timer icon location from tools menu to main menu
Change weight & balance configuration page to allow negative arm values
Improve airspace alerts
Improve display of lightning detector data
Improve graphical flight plan editing
Improve position data output for panel-mounted com radios and transponders
Improve Bluetooth support
General improvements to system operation
Includes update to GI260 software version 2.60
Includes GAD29 software version 2.20
Includes GDL39 software version 4.40
Includes GEA24 software version 2.60
Includes GSA28 software version 2.90
Includes GSU25 software version 3.10
Includes GSU73 software version 3.40
Includes GTR20/200 software version 2.70

Changes made from version 3.50 to 3.60:

Add support for fourth display (MFD2)
Add option to display Chart page on split-screen side of MFD
Add option to display line on map that points to best glide airport
Add option to configure RS-232 ports for 4800 or 9600 baud when using NMEA Out format
Add import/export options to user waypoint list page
Add menu option to WPT and aviation database review pages to add current waypoint to active flight plan
Improve user access to calibration pages for OEM-configured EIS inputs
Improve PFD HSI bearing pointers
Improve storage of configuration changes
General improvements to system operation
Includes GAD29 software version 2.20
Includes GDL39 software version 4.40
Includes GEA24 software version 2.60
Includes GI260 software version 2.50
Includes GSA28 software version 2.90
Includes GSU25 software version 3.10
Includes GSU73 software version 3.40
Includes GTR20/200 software version 2.70

Changes made from version 3.00 to 3.50:

Add support for Electronic Stability and Protection (ESP)
Add estimated glide range ring to map
Add 'Best Airport' bearing pointer option
Add ability to invert video input image
Add GTX 23/33/330 software version 8.00 support
Add config mode status indication when using dedicated AHRS RS-232 port
Improve SiriusXM METAR processing
Improve storage of fuel calculator values when display is quickly powered on and off
Improve PFD turn rate display
Improve map display when using OBS mode with external GPS navigation source
Change knob label text to clarify normal or reverse map zoom behavior
General improvements to system operation
Includes update to GSA 28 software version 2.90
Includes update to GDL 39 software version 4.40
Includes GEA24 software version 2.60
Includes GTR20/200 software version 2.70
Includes GAD29 software version 2.20
Includes GI260 software version 2.50
Includes GSU25 software version 3.10
Includes GSU73 software version 3.40

Changes made from version 2.90 to 3.00:

Add support for additional Connext features
Add support for oil pressure, fuel pressure, manifold pressure, fuel flow, and RPM user-defined sensors
Add support for miscellaneous temperature, pressure, and analog voltage measurement user-customized gauges
Add support for turbine engine gauges
Add remote control of GTN comm radio via MapMX RS-232 interface support for a future GTN software update
Add forward and return flow display when calibrating differential fuel flow
Add ability to switch between internal and external flight plan source from direct-to page
Add compass arc to terrain map page
Improve map display of terrain awareness shading when the aircraft is on the ground
Improve config mode audio volume test
Improve fuel flow display with noisy signals
Change flight director GS and GP modes to allow capture from both above and below
General improvements to system operation
Includes GDL 39 software version 4.20

Changes made from version 2.80 to 2.90:

Add ''combo MFD/PFD'' mode for GDU45x non-reversionary MFD (allows toggle between full-screen MFD and PFD)
Improve AOA tone level control
Correct DRCT2 key behavior
General improvements to system operation

Changes made from version 2.70 to 2.80:

Add ''Restore Default'' backlight config page option menu
Add COM radio tuning ''Press & Hold'' knob support to swap frequencies
Add raster chart night mode
Add CO guardian data field option to data bar
Add tone/audio test buttons to sound config page
Add ''View Departure Airport'' and ''View Destination Airport'' WPT page menu options
Add traffic identifiers and relative motion to PFD traffic insets
Add screen cleaning page
Add reverse knob zoom behavior option
Add heading reference line to map
Improve GDL39 status reporting of GPS fix state
Improve ADAHRS static pressure calibration procedure
Improve data entry knob interaction
Improve graphical flight plan editing
Expand VHF COM radio RS-232 interface
Display default Data Field when selected Data Field is not supported by the current configuration
Allow individual configuration of ADS-B receive capability settings on transponder configuration page when using a 1090ES transponder in conjunction with a GDL 39(R)
Allow user selection of MFD startup page on GDU45x display
Run cooling fan for a brief time at power up to verify fan operation
General improvements to system operation
Includes GSU 25 software version 3.10
Includes GSU 73 software version 3.40
Includes GDL 39 software version 4.10

Changes made from version 2.60 to 2.70:

Add setting to hide VIRB action camera controls
Add option for Video In page in main page loop
Add inset traffic field for full-screen PFD page
Add traffic option for GDU45x inset page
Add option to display traffic target identifiers on map
Add lighting detection system support
Add round gauge display mode for PFD
Improve G-meter and Slip/Skid display
Improve GDU45x PFD page knob behavior
Improve GTS800 traffic support
Improve can network performance for long cable runs
Correct alert tone for user-defined alerts
Correct icing and turbulence weather pages' metric units
Include GDL39, v4.10, software
General improvements to system operation

Changes made from version 2.50 to 2.60:

Add user timer button to data bar
Improve Flight Plan page option menu layout
Improve status bar touch area
Allow user to change PFD/MFD split screen ratio on GDU46x display when engine bar not visible
Enhance data link configuration page to allow GDL ownship address configuration as a US tail number
Correct CAS (Crew Alerting System) tone processing issue
Correct relative altitude display for traffic targets on multi-display systems
General improvements to system operation

Changes made from version 2.40 to 2.50:

Add UI support for the GDU45x display
Add support for comm radio music effects and intercom high noise mode
Add border to map review and chart review popup pages
Add support to exit full screen chart mode via back key
Add transponder ''toggle VFR'' feature
Add backlight intensity button to main menu for manual backlight mode
Add PFD's ''virtual back'' functionality to entire screen
Add Activate Leg menu option to the active FPL page
Add course-to button to direct-to page
Add distance and bearing to the waypoint select page and lists on the direct-to page
Add support for CO Guardian RS-232 interface
Add CAS alert for speed brake position
Add CAS alert for canopy latch
Add a ''Graphically Edit FPL'' option to the main map option menu and to the raster charts option menu
Implement ADAHRS static pressure calibration
Implement support for Lycoming FADEC interface
Improve Traffic page update processing
Improve map scan names for METAR and VORs
Improve private airports in synthetic vision
Improve radio tuning support logic on standalone GDU
Improve checklist page scroll operation
Improve stall switch discrete alert acknowledgment logic
Allow fuel remaining configuration field on active flight plan page
Allow changing position in demo mode by holding the direct-to key
Allow altitude reference to snap to minimum descent altitude when selected in ''BARO MIN''
Allow selection of COM radio GDU locations
Enhance engine popup page behavior
Enhance EIS and transponder display settings
Synchronize user timer state and count between displays
Draw signal bars gray for GPS satellites without valid carrier phase data
Change initial zoom/pan selection for bitmap viewer field to make charts more readable
Change backlight behavior to OFF when rebooting instead of dimming
Move FIS-B NOTAM text to its own tab on the airport review page
Place user timer page at the bottom of the screen when it appears over the PFD
Speak minimums alert twice to matches GDU37x behavior
Clear ARINC 429 port not receiving messages when the condition no longer exists
Rearrange NRST Airport WX to show more METAR text
General improvements to system operation and stability

Changes made from version 2.30 to 2.40:

Add user interface to support Vertical Power
Improve CAN network performance
Improve backlight control
Improve highlight field and touch processing
Improve traffic page auto zoom processing
Improve lean assist button layout logic
Improve VIRB action camera control
Improve weather METAR/TAF and STORM CELL processing
Improve system stability and performance
Engine page layout improvements
Preserve previous navigation state after power up
General user interface layout improvements

Installation Instructions

Download the self-extracting update file onto your hard drive.
Insert an SD card with at least 25 MB of free space into your card reader.
Open the self-extracting update file and follow the instructions provided by the installer application. You will be prompted to specify the drive letter of the SD card you wish to use for the update.
Apply power to your cockpit display.
Insert the SD card containing the software update. You will be prompted to confirm before the update is installed.
During the software update, the display will indicate 'Loading'. Do not remove power during the update process.
When the update is completed, the display will reset itself and turn on normally.
Repeat steps 5-7 for each display unit in the aircraft.
If required, software updates for certain connected LRUs and peripheral devices will be applied automatically.

System requirements

IBM-compatible PC running Windows 2000 or later operating system and an available SD card reader.