Updates & Downloads

GDU 37x Cockpit Display (Other Operating Systems) software version 12.60

as of April 22, 2024

Download (10.26 MB)

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Change History

Changes made from version 12.50 to 12.60:

Added voice audio alerts for ESP pitch and roll protection activity
Added support for Aviation Out RS-232 format
Added support for data log event marker via discrete input
Improved PFD wind display when calculated wind speed is small
Improved flight director altitude capture
Improved flight director HDG mode
Improved processing of MapMX RS-232 data
Improved best airport selection
Improved data logging
General improvements to system operation
Includes update to G5 software version 8.44
Includes update to GI 260 software version 2.90
Includes update to GMC 507 software version 5.00
Includes update to GSA 28 software version 5.70
Includes G5 boot block software version 2.40
Includes GEA 24B software version 2.10
Includes GAD 13 software version 2.10
Includes GAD 29 software version 3.40
Includes GAD 29C/D software version 2.10
Includes GDL 39 software version 4.91
Includes GEA 24 software version 3.90
Includes GMU 11 software version 2.20
Includes GMU 11 boot block software version 2.10
Includes GPS 20A software version 2.40
Includes GPS 20A GPS software version 2.10
Includes GSU 25 software version 4.40
Includes GSU 25 boot block software version 2.30
Includes GSU 25C/D software version 2.90
Includes GSU 25C/D boot block software version 2.10

Changes made from version 12.40 to 12.50:

General improvements to system operation
Includes update to G5 software version 8.30
Includes update to GEA 24B software version 2.10
Includes update to GSA 28 software version 5.50
Includes G5 boot block software version 2.40
Includes GAD 13 software version 2.10
Includes GAD 29 software version 3.40
Includes GAD 29C/D software version 2.10
Includes GDL 39 software version 4.91
Includes GEA 24 software version 3.90
Includes GI 260 software version 2.80
Includes GMC 507 software version 3.10
Includes GMU 11 software version 2.20
Includes GMU 11 boot block software version 2.10
Includes GPS 20A software version 2.40
Includes GPS 20A GPS software version 2.10
Includes GSU 25 software version 4.40
Includes GSU 25 boot block software version 2.30
Includes GSU 25C/D software version 2.90
Includes GSU 25C/D boot block software version 2.10
Includes GSU 73 software version 3.80

Changes made from version 12.30 to 12.40:

Add ability to disable ESP by holding AP DISC button for 5 seconds
Add support for Garmin Pressure Transducer (GPT) sensors
Add support for additional RS-232 formats for GTX xx5R transponders
Add automatic IGRF data update from navigation database
Improve GSA 28 hardware monitoring
Improve Smart Glide operation
Improve transponder behavior when STBY mode is selected before takeoff
Improve functionality of GEA 24 backup RS-232 connection
Improve ESP operation
Improve airspace alerting
Improve LRU software update process
General improvements to system operation
Includes update to G5 software version 8.17
Includes update to G5 boot block software version 2.40
Includes update to GMU 11 software version 2.20
Includes update to GMU 11 boot block software version 2.10
Includes update to GSA 28 software version 5.30/2.60
Includes update to GSU 25 software version 4.40
Includes update to GSU 25 boot block software version 2.30
Includes update to GSU 25C/D software version 2.90
Includes update to GSU 25C/D boot block software version 2.10
Includes GAD 13 software version 2.10
Includes GAD 29 software version 3.40
Includes GAD 29C/D software version 2.10
Includes GDL 39 software version 4.91
Includes GEA 24 software version 3.90
Includes GI 260 software version 2.80
Includes GMC 507 software version 3.10
Includes GPS 20A software version 2.40
Includes GPS 20A GPS software version 2.10
Includes GSU 73 software version 3.80

Changes made from version 12.20 to 12.30:

Add support for Smart Glide (requires compatible external GPS navigator)
Add support for LP+V CDI scale
Add ability to simultaneously arm flight director VNAV mode along with GS or GP mode (requires GMC mode control panel)
Improve AFCS operation with blocked pitot tube
Improve functionality of GSU 25 backup RS-232 connection
Improve synthetic vision Pathways display
Improve transponder interface
Improve NAV radio interface
General improvement to system operation
Includes update to G5 software version 8.00
Includes update to GAD13 software version 2.10
Includes update to GAD29C/D software version 2.10
Includes update to GEA24 software version 3.90
Includes update to GMC507 software version 3.10
Includes update to GSU25C/D software version 2.70
Includes GAD29 software version 3.40
Includes GDL39 software version 4.91
Includes GI260 software version 2.80
Includes GMU11 software version 2.10
Includes GPS20A software version 2.40
Includes GPS20A GPS software version 2.10
Includes GSA28 software version 4.90
Includes GSU25 software version 4.30
Includes GSU73 software version 3.80
Includes GSU73 IGRF database version 1.04 (Base Year 2020)

Changes made from version 12.10 to 12.20:

Add fuel flow/quantity labels to EFIS/Airdata ARINC 429 output format
Add ability to control transponder via reversionary ADAHRS RS-232 connection and/or redundant RS-232 connections to multiple ADAHRS LRUs
Add support for RPM sensing via P-lead connection (requires GEA 24 Mod level 2)
Add DST data to VHF Nav/Com RS-232 output format
Add additional data to Text Out RS-232 output format
Add support for Rotax SCU 9iS FADEC interface
Improve audio alert output
Improve ARINC 429 output
Improve radio tuning RS-232 interface
Improve heading display when true direction is selected
Improve weather legend display of wind barb symbol
Change Rotax FADEC CAS alerts based on updated guidance from manufacturer
General improvements to system operation
Includes update to G5 software version 7.10
Includes update to GAD29 software version 3.40
Includes update to GEA24 software version 3.80
Includes update to GSA28 software version 4.90
Includes update to GSU25 software version 4.30
Includes update to GSU25C/D software version 2.60
Includes GAD13 software version 2.00
Includes GDL39 software version 4.91
Includes GI260 software version 2.80
Includes GMC507 software version 2.90
Includes GMU11 software version 2.10
Includes GPS20A software version 2.40
Includes GPS20A GPS software version 2.10
Includes GSU73 software version 3.80
Includes GSU73 IGRF database version 1.04 (Base Year 2020)

Changes made from version 12.00 to 12.10:

Improve weather legend page
Improve airspace name display on map setup page
Change transponder flight ID edit page to allow use of CLR key
General improvements to system operation
Includes update to G5 software version 6.75
Includes update to GAD29 software version 3.30
Includes update to GDL39 software version 4.91
Includes update to GEA24 software version 3.70
Includes update to GMC507 software version 2.90
Includes update to GMU11 software version 2.10
Includes update to GPS20A GPS software version 2.10
Includes update to GPS20A software version 2.40
Includes update to GSA28 software version 4.70
Includes update to GSU25 software version 4.20
Includes update to GSU25C/D software version 2.50
Includes update to GSU73 software version 3.80
Includes update to GSU73 IGRF database version 1.04 (Base Year 2020)
Includes GAD13 software version 2.00
Includes GI260 software version 2.80

Changes made from version 11.80 to 12.00:

Add support for GNX 375 transponder interface
Add ability to share internal GPS navigation data with G5
Add support for Kavlico P4055-5020 pressure sensors
Add support for UMA 1EU50A manifold pressure sensor
Add AFCS PFT status display
Improve traffic data processing
Improve status pressure calibration procedure for GSU 25C/D
Improve CO detector CAS messages
Change flight director VOR, LOC, and GS modes to operate without navigation database
Update magnetic table
General improvements to system operation
Includes update to G5 software version 6.30
Includes update to GAD13 software version 2.00
Includes update to GAD29 software version 3.20
Includes update to GEA24 software version 3.60
Includes update to GSA28 software version 4.40
Includes update to GSU25 software version 3.90
Includes update to GSU25C/D software version 2.10
Includes GDL39 software version 4.81
Includes GI260 software version 2.80
Includes GMC507 software version 2.80
Includes GMU11 software version 2.00
Includes GPS20A software version 2.30
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)

Changes made from version 11.70 to 11.80:

Added GMC507 support
Added support for Flight Director Track mode
Added support for VNAV from external navigators
Added GSU25C/D support
Resolved incorrect GPS date
General AFCS improvements
General improvements to system operation
Includes update to G5 software version 6.10
Includes update to GAD29 software version 3.10
Includes update to GDL39 software version 4.81
Includes update to GEA24 software version 3.50
Includes update to GI260 software version 2.80
Includes update to GMC507 software version 2.80
Includes update to GPS20A software version 2.30
Includes update to GSA28 software version 4.30
Includes update to GSU25 software version 3.80
Includes update to GDU25C/D software version 2.00
Includes GMU11 software version 2.00
Includes GSU73 software version 3.70
Includes GSU73 IGRF database version 1.03 (Base Year 2015)

Changes made from version 11.60 to 11.70:

Improved GSA 28 data processing
Improved GMC 30x annunciator light processing
Improved track log export
General improvements to system operation
Includes update to G5 software version 5.30
Includes update to GAD29 software version 3.00
Includes update to GSA28 software version 4.10
Includes GEA24 software version 3.20
Includes GDL39 software version 4.80
Includes GI260 software version 2.70
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)

Changes made from version 11.50 to 11.60:

Added support for new GTS 8xx RS-232 interface format
Improved overall display performance
Improved weather data processing
Improved traffic data processing
Improved data log time offset value when UTC is selected
Changed flight director VOR, LOC, and GS modes to operate without navigation database
Changed ESP to allow pitch, roll, high airspeed, and Mach limit protection to operate when AGL height is unknown
General improvements to system operation
Includes update to G5 software version 5.20
Includes update to GEA24 software version 3.20
Includes update to GSA28 software version 4.00
Includes GAD29 software version 2.30
Includes GDL39 software version 4.80
Includes GI260 software version 2.70
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)

Changes made from version 11.40 to 11.50:

Added support for hectopascal pressure units
Added support for Rotax FADEC manifold air temperature
Added Mach number label (205) to EFIS/Airdata ARINC 429 output
Improved selection of backup versus primary ADAHRS data sources when aircraft is on the ground
Improved update process when changing database regions
Improved MapMX RS-232 data processing
Improved transponder configuration page
Improved reliability of weather data transfer from XM receiver
Improved flight log date/time display
Improved flight plan file import
Changed ESP to allow pitch, roll, high airspeed, and Mach limit protection to operate when AGL height is unknown
Changed minimum displayable airspeed from GSU25 from 30 mph to 20 mph when mph units are configured
Changed Text Out RS-232 format to support manifold pressure values up to 99.9 inches
General improvements to system operation
Includes update to G5 software version 4.10
Includes GAD29 software version 2.30
Includes GEA24 software version 3.10
Includes GDL39 software version 4.80
Includes GI260 software version 2.70
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)

Changes made from version 11.30 to 11.40:

Added support for GMU 11 magnetometer
Added support for Rotax 915iS engine FADEC interface
Added support for ULPower engine FADEC interface
Changed ESP to allow pitch, roll, high airspeed, and Mach limit protection to operate when AGL height is unknown
Improved GPS data processing
Improved GTX x5R/3x5 transponder RS-232 port configuration
General improvements to system operation
Includes update to G5 software version 3.00
Includes update to GEA24 software version 3.10
Includes update to GSU25 software version 3.70
Includes update to GSU73 software version 3.70
Includes GAD29 software version 2.30
Includes GDL39 software version 4.80
Includes GI260 software version 2.70
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 11.20 to 11.30:

Changed flight director TO mode to always disengage autopilot when activated
Changed flight director GA mode to disengage autopilot if minimum airspeed is not configured
Improved FADEC engine power and time display
Improved transponder status display
General improvements to system operation
Includes update to G5 software version 2.60
Includes update to GDL39 software version 4.80
Includes update to GEA24 software version 3.00
Includes GAD29 software version 2.30
Includes GI260 software version 2.70
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)

Changes made from version 11.00 to 11.20:

Added AGL height data field
Added CO level data field
Improved message alerts in single-display installations
Improved GEA 24 RPM signal processing
Improved 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 GAD29 software version 2.30
Includes GDL39 software version 4.70
Includes GI260 software version 2.70
Includes GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.60
Includes GSU73 software version 3.60

Changes made from version 10.90 to 11.00:

Added display of user waypoint comment text
Added config mode option to disable automatic PFD declutter when aircraft is in an unusual attitude
Increased maximum current supported by user-calibrated shunt current sensors
Improved GPS LRU data processing
Improved CO detector data processing
General improvements to system operation
Includes G5 software version 2.40
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 GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.60
Includes GSU73 software version 3.60

Changes made from version 10.80 to 10.90:

Added separate Custom RPM configurations for signals from 0-500 and 0-1000 Hz
Improved support for GTX 35R/45R, 335/345, and 335R/345R transponders
General improvements to system operation
Includes update to G5 software version 2.40
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 GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.60
Includes GSU73 software version 3.60

Changes made from version 10.70 to 10.80:

Added support for GTX 35R/45R, 335/345, and 335R/345R transponders
Added display of Rotax FADEC throttle position when engine is not running
Improved flight director GPS mode when external IFR GPS is navigating a heading leg
Improved display for user-calibrated pressure inputs
General improvements to system operation
Includes G5 software version 2.30
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 GPS20A software version 2.20
Includes GSA28 software version 3.20
Includes GSU25 software version 3.60
Includes GSU73 software version 3.60

Changes made from version 10.60 to 10.70:

Added support for MS28034 / MIL-T-7990 RTD temperature sensor
Added support for optional backup RS-232 connection to GEA 24
Improved interface to GTS 8xx traffic system
Improved ETE display when using direct-to navigation with external GPS navigator
Improved PFD wind calculation
General improvements to system operation
Includes update to G5 software version 2.30
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 GPS20A software version 2.20
Includes GSA28 software version 3.20

Changes made from version 10.50 to 10.60:

Added ability to access demo mode by holding Direct-To key during powerup.
Added carbon monoxide level to data log file.
Improved LRU software update process.
Improved fuel flow and quantity displays when Liters are selected.
Improved engine temperature displays when Celsius units are selected.
Improved multi-ADAHRS data comparison logic.
Changed Lean Assist to use EGT instead of TIT for turbocharged engine applications.
General improvements to system operation.
Includes update to GDL39 software version 4.70.
Includes update to GPS20A software version 2.20.
Includes G5 software version 2.20.
Includes GAD29 software version 2.30.
Includes GEA24 software version 2.70.
Includes GI260 software version 2.70.
Includes GSA28 software version 3.20.
Includes GSU25 software version 3.50.
Includes GSU73 software version 3.50.

Changes made from version 10.40 to 10.50:

Added support for G5 standby flight director.
Added support for Garmin navigation database.
Added support for UMA N1EU70D 0-70 PSI differential fuel pressure sensor.
Added support for UMA 1A3C-4 RPM sensor.
Added support for configuring Vne in terms of true airspeed using a different value from indicated Vne.
Added option to main menu transponder setup page for testing Mode S ALT reporting when on the ground.
Added configurable data fields for outside air temp (OAT) and ram air temp (RAT).
Improved AOA volume configuration.
Improved GPS data sharing between displays.
General improvements to system operation.
Includes update to G5 software version 2.20.
Includes update to GAD29 software version 2.30.
Includes update to GEA24 software version 2.70.
Includes update to GSA28 software version 3.20.
Includes update to GSU25 software version 3.50.
Includes update to GSU73 software version 3.50.
Includes GDL39 software version 4.60.
Includes GI260 software version 2.70.
Includes GPS20A software version 2.10.

Changes made from version 10.30 to 10.40:

Added estimated time to VNAV (ETV) field to data bar.
Improved GSU73 calibration procedures.
General improvements to system operation.
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 GSU25 software version 3.40.
Includes GSU73 software version 3.40.

Changes made from version 10.20 to 10.30:

Added support for GPS 20A remote WAAS GPS receiver
Added support for GMC 307 mode control panel
Added support for GSU 25B ADAHRS
Added configurable option to reset fuel-used value on first engine start or takeoff following a power cycle
Improved display of user-defined engine gauges
Improved map display when navigating to a user waypoint using external GPS navigation source
Improved RS-232 interface to GTS 8xx
Improved flight director operation for ILS approaches with unusual glideslope angles
Improved flight log interaction with engine timers when aircraft is on the ground
Improved landing gear warning alert logic
General improvements to system operation
Includes update to GDL39 software version 4.60
Includes update to GI260 software version 2.70
Includes update to GSA28 software version 3.00
Includes update to GSU25 software version 3.40
Includes GAD29 software version 2.20
Includes GEA24 software version 2.60
Includes GPS20A software version 2.10
Includes GSU73 software version 3.40

Changes made from version 10.10 to 10.20:

Added option to display line on map that points to best glide airport.
Added options to customize flight director altitude hold mode behavior.
Added flight director setup page to main menu.
Improved airspace alerts.
Improved GPS position output to panel-mounted transponders.
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.

Changes made from version 10.00 to 10.10:

Added estimated glide range ring to map.
Added option to configure RS-232 ports for 4800 or 9600 baud when using NMEA Out format.
Improved user access to calibration pages for OEM-configured EIS inputs.
Improved PFD HSI bearing pointers.
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.

Changes made from version 9.20 to 10.00:

Added support for Electronic Stability and Protection (ESP).
Added support for oil pressure, fuel pressure, manifold pressure, fuel flow, and RPM user-defined sensors.
Added support for miscellaneous temperature, pressure, and analog voltage measurement user-customized gauges.
Added forward and return flow display when calibrating differential fuel flow.
Added support for GTX 23/33/330 software version 8.00.
Improved fuel flow display with noisy signals.
Changed flight director GS and GP modes to allow capture from both above and below.
General improvements to system operation.
Includes update to GSA 28 software version 2.90.
Includes update to GDL 39 software version 4.40.
Includes update to audio database version 2.20.
Includes GEA24 software version 2.60.
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 9.00 to 9.20:

Improved auxiliary RS-232 interface to GSU 25.
Improved GDL 39 RS-232 interface.
General improvements to system operation.
Includes GDL 39 software version 4.20.

Changes made from version 8.90 to 9.00:

Changed transponder configuration page to allow individual configuration of ADS-B receive capability settings when using a 1090ES transponder in conjunction with a GDL 39(R).
Improved ADAHRS static pressure calibration procedure.
General improvements to system operation.
Includes GSU 25 software version 3.10.
Includes GSU 73 software version 3.40.

Changes made from version 8.80 to 8.90:

Added support for ADAHRS static pressure calibration.
Added support for Lycoming iE2 FADEC interface.
Added support for additional thermistor temperature measurements.
Improved display of slip/skid ball.
Improved display of G-meter.
Improved GTS 8xx traffic interface.
Improved Text Out RS-232 format.
Improved CAS alert tones.
General improvements to system operation.
Includes GEA 24 software version 2.60
Includes GSU 25 software version 3.00.
Includes GSU 73 software version 3.30.
Includes GI 260 software version 2.50.
Includes GDL 39 software version 4.10.

Changes made from version 8.70 to 8.80:

Improved comm radio RS-232 interface.
Improved heading values in Text Out RS-232 data.
Increased transmit rate of ARINC 429 label 204 (baro altitude).
General improvements to system operation.
Includes GI 260 software version 2.40.

Changes made from version 8.60 to 8.70:

Added support for CO Guardian carbon monoxide detector / pulse oximeter.
Added separate volume configuration for AOA / stall warning tones.
Added initial airframe and engine time to data log file header.
Added discrete input function for speed brake position alert.
Improved GTR 200 radio tuning support.
Improved ChartView processing.
General improvements to system operation.
Includes GSU 25 software version 2.90.
Includes GDL 39 software version 3.10.

Changes made from version 8.50 to 8.60:

Added support for GI 260 AOA indicator.
Added support for CAN network connection to GTR 200 comm radio.
Added support for external LVL mode button via discrete input.
Added ability to disable engine time recording by clearing Standard RPM field with CLR key.
Improved operation when a GSU 25 is connected via both CAN and RS-232.
Improved display of flight director command bars.
Improved display of European FliteCharts data.
Improved display of SafeTaxi airport hotspot areas.
Improved TIS-B traffic status indication.
Improved Rotax FADEC configuration.
General improvements to system operation.
Includes GEA 24 software version 2.50.
Includes GSU 25 software version 2.80.
Includes GDL 39 software version 3.01.

Changes made from version 8.40 to 8.50:

Improved manual autopilot disengage behavior in conjunction with pilot?s manual operation of electric trim input.
Improved flight director integration with third-party external autopilot.
Improved TIS-B status indication on datalink info page.
Improved GTS 8xx serial interface.
Improved GEA 24 digital signal processing.
Improved GEA 24 thermistor measurements at low temperatures.
Includes GEA 24 software version 2.40.
Includes GSU 25 software version 2.70.
Includes GSA 28 software version 2.80.
Includes GAD 29 software version 2.20.
Includes GDL 39 software version 2.90.
General improvements to system operation.

Changes made from version 8.30 to 8.40:

Added ability to configure shunt and Hall effect current sensors for battery amps or alternator amps.
Improved GNC 255 RS-232 interface.
Changed formatting of aircraft normal acceleration (G) in flight log file.
General improvements to system operation.

Changes made from version 8.20 to 8.30:

Added support for dual-cue flight director display.
Added support for configuring Mach reference speeds for airspeed tape.
Added support for Rotax 456180 oil pressure sensor for Rotax 912/914.
Added support for UMA N1EU07D fuel pressure sensor for Rotax 914.
Added support for JPI 4208xx RPM sensors for pressurized magnetos.
Added softkeys to AP config page to verify trim motor movement direction during on-ground checkout.
Added display of selected altitude to terrain page profile view.
Improved heading display when system heading format is set to True Heading.
Improved display of PFD AOA field.
Improved display of PFD wind field.
General improvements to system operation.
Includes GSU 25 software version 2.50.
Includes GSA 28 software version 2.60.
Includes GSU 73 software version 3.20.

Changes made from version 8.10 to 8.20:

Added selected altitude intercept arc to map page.
Added ability to configure alternate display range for PFD vertical speed indicator.
Added ability to provide GPS data to GDL 39.
Added display of outside air temperature status for each enabled ADAHRS in config mode.
Improved cosmetic appearance of PFD gauges.
Includes GDL 39 software version 2.80.
General improvements to system operation.

Changes made from version 8.00 to 8.10:

Added additional mounting orientations for GSU 25.
Added support for measuring an auxiliary temperature using thermocouples.
Added RS-232 data output for GTR comm and GNC nav/comm radios.
Changed carbureted fuel pressure sensors to allow editing in 0.1 PSI increments.
Changed to allow separate trim run time limit values for each autopilot servo.
Changed automatic configuration of remote transponder ARINC 429 ports to enable interface to Garmin TCAS systems.
Changed GEA 24 fuel quantity measurements to use separate configuration items for resistive inputs (e.g. float level senders) and voltage inputs (e.g. capacitance-to-voltage converters).
Improved AHRS post-install calibration procedures.
Improved autopilot trim configuration and operation.
Improved autopilot LVL mode.
Improved VNAV operation in three-display systems with external GPS navigators.
Improved engine page layout on PFD2 display.
Improved GEA 24 discrete input sensing for Active High configuration when input is floating.
Improved GEA 24 RPM input when used with electronic ignition tach signals.
Improved GSU 73 OAT probe configuration.
Improved retention of user setting for track log display color.
Improved AOA tone output.
Improved display of Vertical Power aux battery voltage.
Includes GEA 24 software version 2.10.
Includes GSU 25 software version 2.40.
Includes GSA 28 software version 2.50.
Includes GSU 73 software version 3.10.
General improvements to system operation.

Changes made from version 7.40 to 8.00:

Added support for GEA 24 engine interface unit.
Added support for GSU 25 ADAHRS unit.
Added support for GSA 28 autopilot/yaw damper servo.
Added support for GAD 29 ARINC 429 interface unit.
Added support for GMC 305 autopilot mode control panel.
Added support for flight director display and control.
Added support for autopilot/flight director LVL, IAS, TO, and GA modes.
Added support for angle of attack measurement, alerting, and display.
Added support for multiple ADAHRS (up to 3).
Added support for Rotax 912iS FADEC interface (requires GEA 24).
Added support for ADS-B V2 compliant transponders.
Added option to invert display of elevator trim gauge.
Added softkey in config mode to test EIS annunciator outputs.
Added support for electronic ignitions with 1, 2, 3, or 4 pulses per revolution.
Added support for using Rotax 966385 sensor for carburetor and coolant temperature.
Added support for monitoring an auxilary temperature using an RTD or thermistor sensor.
Changed VP-X page to support systems where the primary alternator is disabled.
General improvements to system operation.

Changes made from version 7.30 to 7.40:

Added support for Rotax 966385 sensor for CHT and oil temperature.
Improved lean assist detection of false peaks due to small temperature fluctuations.
Improved results of nearest city search.
Changed checksum calculation for RS-232 Text Out format to include all message bytes including escape character, in accordance with documentation.
General improvements to system operation.

Changes made from version 7.20 to 7.30:

General improvements to system operation.
Includes GDL 39 system software version 2.51.

Changes made from version 7.10 to 7.20:

Added Target Trend display to Traffic page.
Added individual settings for traffic target symbols and labels to Map Setup page.
General improvements to system operation.
Includes GDL 39 system software version 2.40.

Changes made from version 7.00 to 7.10:

Improved timing of NMEA output data.
Improved processing of FIS-B weather data.
Improved display of channel category on XM Audio page.
General improvements to system operation.

Changes made from version 6.40 to 7.00:

Added support for GDL 39 FIS-B weather and ADS-B traffic data.
General improvements to system operation.
Includes GSU 73 system software version 2.18.

Changes made from version 6.30 to 6.40:

Added option to display G-meter on PFD.
Added option to display track-up orientation on PFD HSI.
Added support for GTX 8xx active traffic system.
Added support for GNS 480 MapMX data.
Added support for Kavlico P500-30A manifold pressure sensor.
Improved autopilot capture of GPS course when using internal GPS navigation source.
Improved terrain alerting logic.
Improved flight plan synchronization between multiple displays when user waypoint list is full.
Improved Pathways display.
Improved AHRS alignment process.
Improved flight log distance computation.
Improved demo mode simulator controls.
Changed to ensure display is visible when powering on system during daylight hours when manual backlight setting was previously set to a dim level for night use.
Corrected display of manifold pressure units in config mode when air pressure measurement units are set to millibars.
General improvements to system operation.
Includes GSU 73 system software version 2.17.

Changes made from version 6.20 to 6.30:

Added ability to adjust PFD pitch attitude offset, using the PFD Setup page.
Added ability to configure the initial MFD page that is displayed after powerup, using the Display Setup page.
Added ability to display synthetic vision field of view on the map.
Added configurable data fields to display current climb gradient in percent or altitude gain per nautical mile.
Added checkbox indicators to show the status of each GDU's GPS antenna in config mode.
Added ability to optionally hide manifold pressure gauge for installations using fixed-pitch propellers.
Added runway number labels to runway extension lines on map.
Added items to Map Setup page to adjust visibility of water labels, park and land cover areas, runway numbers, and runway extension lines.
Added additional items and restructured data log file format for compatibility with applications designed to read G1000 log files.
Simplified requirements for availability of autopilot VNAV mode, and reduced the need for pilot acknowledgement before VNAV mode can be activated.
Changed screenshot utility to be activated when Menu key is pressed and held.
Changed selected altitude data field on PFD to flash in conjunction with armed autopilot VNAV indicator if an altitude has not been selected prior to VNAV descent.
Changed Fuel Calculator display on Engine page to show fuel quantity and pressure gauges if space is available.
Changed demo mode to show simulated weather data when no XM antenna is connected.
Changed wind direction display on PFD to use system units settings for heading offset.
Changed display of XTK data fields to more closely resemble G1000 presentation.
Improved flight log to more closely match airframe timer, and to account for time spent with the engine running while on the ground before or after a flight.
Improved instruction text displayed while performing magnetometer calibration and heading offset procedures.
Improved fuel gauge description text displayed on Engine config page.
Improved retention of engine and airframe time when power is removed immediately after landing.
Improved visibility of runway extension lines on map.
Improved display of synthetic vision runways in areas with a high density of airports.
Improved appearance of water runways on map and synthetic vision display.
Improved MapMX data processing.
Improved gear warning alert logic.
General improvements to system operation.
Includes GSU 73 system software version 2.16.

Changes made from version 6.10 to 6.20:

Added support for remote transponder interface (GTX 23/23es, GTX 32, GTX 33/33es, GTX 327, and GTX 330/330es).
Added ability to switch between internal and external GPS flight plan sources, to allow navigation and flight plan entry using GDU interface while configured to receive data from an external GPS navigator.
Added optional dedicated Traffic page.
Added softkey to map page to enable/disable traffic display.
Added ability to enable/disable 'traffic not available' audio alert.
Added ability to enable/disable traffic data on synthetic vision display.
Added ability to change the layout of PFD1 between full-screen and split-screen in normal mode via the Display Setup page.
Added arrows to PFD traffic and terrain messages to indicate traffic and terrain alerts that are outside the synthetic vision field of view.
Added display of peak EGT temperature to bar graph display on Engine page when lean mode is active.
Added softkey to Terrain page to quickly access terrain alerting settings.
Improved Pathways display when external GPS flight plan includes an LNAV approach without WAAS vertical guidance.
Improved Pathways display for ILS approaches.
Improved instructions and status text displayed during GSU calibration in config mode.
Improved database update page.
Improved automatic backlight control when using external lighting bus input.
Improved persistent sky/ground strips on PFD.
Improved flight plan input from external GPS nav sources.
Improved flight planning cruise speed and fuel flow values on Aircraft config page.
Improved Smart Airspace on a standalone MFD unit that is not connected to a GSU 73.
Improved synthetic vision runway label display.
Improved map TFR display.
Improved METAR text processing.
Changed EGT gauge in EIS strip to display the cylinder whose temperature is currently closest to its peak value during when lean mode is active (instead of the first cylinder to peak) to allow use in both rich of peak and lean of peak conditions.
Changed CRS softkey on PFD page to indicate which course it controls (LOC, VOR, or OBS).
Changed AP NAV softkey on PFD page to cancel armed GS mode on the first press if GPS mode is active and LOC and GS modes are both armed, to allow arming for a localizer-only approach while GPS mode is active.
Changed screenshot settings to be shared between GDUs, and to persist between power cycles.
Changed fuel flow calibration page to allow higher maximum K-factor values.
General improvements to system operation.
Includes GSU 73 system software version 2.15.

Changes made from version 6.00 to 6.10:

Added baro minimums altitude reference bug and audio alert to PFD.
Added ability to configure PFD2 to show full-screen MFD pages in addition to a full-screen PFD page.
Added additional functionality to discrete alerts, for door/canopy switches, gear up/down switches, squat switch, and stall warning.
Added Text Out RS-232 format.
Added additional configuration options for NMEA RS-232 output.
Added softkey to sound config page to test audio output during post-install checkout
Improved autopilot altitude capture.
Improved autopilot PIT mode when joystick is used to adjust pitch reference.
Improved loading of checklist file from data card.
Improved localizer auto slew when using an ARINC 429 VLOC nav source.
Improved synthetic vision display of airports that have both hard-surface and soft-surface runways.
Improved synthetic vision Pathways display for ILS and OBS flight plan legs.
Improved TFR display.
Changed CRS softkey on PFD page to indicate which course it controls (LOC, VOR, or OBS).
General improvements to system operation.

Changes made from version 5.10 to 6.00:

Added Pathways to PFD synthetic vision display.
Added support for optional secondary fuel quantity calibration curve for use when aircraft is on the ground.
Improved PFD page wind vector display and added selectable alternate presentation to show headwind and crosswind components.
Added on-screen indication of improper magnetometer calibration.
General improvements to system operation.
Includes GSU 73 software version 2.14.

Changes made from version 5.00 to 5.10:

Added support for RS-232 interface to Vertical Power VP-X and VP-200.
Added support for secondary RPM input for use with dual electronic ignitions.
Added fuel flow to list of configurable data fields.
Changed PFD to hide glideslope deviation while flying localizer back course.
Improved decoding of XM AIRMET/SIGMET data.
Improved integrated autopilot capture of target altitude when using very shallow climbs or descents.
Improved integrated autopilot VOR, LOC, and GS modes when using test equipment during on-ground checkout.
Corrected issue with configuration of CAP FUEL 1 input.
General improvements to system operation.

Changes made from version 4.10 to 5.00:

Added support for VOR, localizer, and glideslope modes for integrated autopilot.
Added option to display trim and flap position on PFD.
Added persistent sky/ground display to PFD.
Added configuration option to allow Vne on PFD airspeed tape to change with true airspeed.
Added ability to configure and display Vse (blue line) and Vmc (red line) on PFD airspeed tape for multiengine aircraft.
Added 'User Selected' configuration option to allow the position of the EIS strip to be changed via the Display Setup page.
Added ability to view EGT/CHT cylinder temperature bar graph on a single-display system.
Added display of integrated autopilot self-test status and sensor health in config mode.
Added automatic sync of altimeter setting to local terrain elevation when FMS joystick knob is pressed and held while BARO softkey is selected and aircraft is stationary on the ground.
Added display of displaced runway threshold distance to airport review page.
Added ability to display GSU power input voltage instead of monitoring an external bus voltage circuit.
Added menu options to the WPT page to quickly view the departure airport and destination airport.
Added menu option and softkey to the FPL VNAV page to force a capture of the VNAV profile.
Added simulated VLOC data in demo mode.
Added Sirius/XM warning text.
Updated IGRF magnetic field database.
Changed demo mode to use real air temperature data if available.
Changed temperature values to be displayed using separately configurable settings for air temperature and engine temperature.
Improved terrain alerting when close to the destination airport.
Improved appearance of poweron disclaimer page for single-display systems.
Improved HSI localizer course auto-slew and localizer backcourse presentation.

Changes made from version 4.00 to 4.10:

Added ability to configure a 'white line' marking on an engine gauge (distinct from 'tick mark').
Added display of current input state when configuring a discrete input pin.
Added support for displaying flight time in data bar.
Added support for additional punctuation characters in checklist files.
Improved display of caution and warning colors in checklist files.
Improved lean assist peak EGT detection.
Improved gauge response for amps, manifold pressure, EGT, and TIT.
Improved list selection on GSU calibration page when setting AHRS orientation.
Improved map display when using flight plan data from an external GPS navigator.
Improved VNAV when using flight plan data from an external GPS navigator.
Improved storage of aircraft reference speeds after editing.
Improved display of VLOC nav source frequency on PFD.

Changes made from version 3.20 to 4.00:

Added support for Jeppesen ChartView and geo-referenced FliteCharts.
Added display of calculated power for Lycoming and Continental engines.
Added ability to use VNAV when using an external GPS navigation source.
Added softkey to Terrain page to quickly enable or disable terrain alerts.
Added display of GSU tilt angle values during pitch/roll offset calibration.
Added display of navaid frequency to PFD bearing pointer data fields.
Added menu options to Comm configuration page to change NMEA data transmit rate.
Changed screenshot utility to flash the screen to indicate when a screenshot has been saved.
Changed to use actual GSU data for discrete inputs when in demo mode.
Updated magnetic variation model.
Improved visibility of runways on synthetic vision.
Improved visibility of extended runway centerlines on map.
Improved RPM display when using electronic ignition tach output.
Improved filtering of engine gauge data.
Improved engine and airframe timers.
Improved display of flight plan data when using MapMX RS-232 input.
Improved database update page in reversionary mode.
Improved label spacing on Weight & Balance page.
Improved display of FSS and ARTCC frequency Rx/Tx designators for consistency with Garmin certifed navigators.
Improved frequency type display when transmitting frequency list to SL30/40 comm radio.
Improved PFD autopilot status display.
Improved PFD flight path marker in demo mode.
Improved Drive Simulator page to allow altitude and heading adjustments when autopilot is configured but not engaged.
Improved system operation with three displays.

Changes made from version 3.10 to 3.20:

Added ability to display additional complex flight plan data from GNS 4xxW/5xxW navigators using MapMX serial data input format.
Added ability to display checklist files from SD card.
Added ability to log data to SD card.
Added ability to export track log and user waypoints to SD card.
Added ability to display fuel calculator values in data bar.
Added simulated traffic data in demo mode.
Added support for Bar pressure units.
Added bar graph display for EGT and CHT on engine configuration page.
Changed EGT and CHT gauges in engine bar and on ENG page of single-screen unit to display dashes instead of a number when any cylinder's input is invalid.
Changed map to use position data from a GNS 4xx/5xx navigator in a reversionary case when no GDU with a connected GPS antenna is available.
Improved display of airspace warning messages.
Improved display of fuel timer data field.
Improved display of AOPA data for certain non-US airports.
Improved synthetic vision display.
Revised GSU pitch/roll offset procedure.
Relaxed GSU magnetic interference test criteria.
Includes GSU 73 software verison 2.13.

Changes made from version 3.00 to 3.10:

Added icon on map page to indicate availability of TIS traffic data.
Added display of fuel remaining at each waypoint on active flight plan page.
Added ability to import/export flight plans using SD card.
Added softkeys to Nearest Airport page to quickly show/hide private airports and heliports.
Added support for Jabiru oil temperature and oil pressure sensors.
Improved autopilot pitch trim annunciation.
Improved autopilot ROL mode when adjusting bank angle using PFD joystick.
Improved visibility of receive-status indicators on Comm config page.
Improved layout of rudder/aileron trim gauges on engine page.
Improved bar graph display on engine page when monitoring only CHT without EGT.
Improved display of EGT/CHT temperature when monitoring only two cylinders.
Improved text displayed during GSU 73 engine run-up test procedure.
Improved responsiveness when editing V-speeds on Aircraft config page.

Changes made from version 2.70 to 3.00:

Added synthetic vision display to PFD.
Added option to display EIS strip on PFD instead of MFD in a multi-display system.
Added option for PFD1 or PFD2 to always remain in split-screen mode in a multi-display system.
Added option to use alternate airplane symbol on PFD horizon.
Added ability to highlight multiple weather objects using map cursor.
Added mach number and G-meter to configurable data fields.
Added support for type J thermocouples for CHT.
Added support for Jabiru RPM input.
Added support for UMA pressure transducers.
Added support for GSU master-caution and master-warning annunciator outputs.
Improved autopilot trim annunciations.
Improved performance of autopilot HDG and ALT modes.
Improved display of map labels containing accent characters.
Improved text and data displayed during GSU magnetometer interference calibration procedure.
Improved autopilot RS-232 communication status annunciation.
Improved ability to display non-simulated weather data in demo mode.
Improved attitude display at very low airspeeds.
Includes GSU 73 software version 2.12.

Changes made from version 2.60 to 2.70:

Added support for user configuration and calibration of EIS inputs.
Added support for integrated autopilot control and display via PFD page.
Added PFD setup page.
Added second bearing pointer to PFD HSI.
Added lean assist softkey to ENG page.
Added fuel calculator to ENG page.
Added fuel range ring to map.
Added simulated wind while in demo mode.
Added menu option to XM page to allow selection of a specific channel number.
Improved course selection when activating direct-to navigation, to account for standard-rate turn to new course.
Improved automatic selection of waypoint to display on WPT page following a change in navigation.
Improved ability to navigate to a waypoint that appears multiple times in the active flight plan.
Improved display of audio, system, GPS, and XM version information on main config page.
Improved display of SafeTaxi labels on IFR map in night mode.

Changes made from version 2.50 to 2.60:

Added message to indicate if config module is missing
Added GDU audio database version number to main config page
Added warning text to weight and balance page
Improved density altitude data field
Improved calculation of direct-to course to account for aircraft turn radius
Improved ability to navigate to a specific instance of a waypoint that appears multiple times in the active flight plan
Improved Nearest Weather page display
Improved Airport Review page data display
Improved Flight Log functionality
Changed order of calibration procedures on GSU config page
Changed WPT page to return to automatic selection of waypoint to display when active flight plan is modified
Improved display of Satellite Mosaic data
Improved PIREP text display

Changes made from version 2.40 to 2.50:

Added support for external ARINC 429 GPS and VOR/ILS navigation sources
Added support for ARINC 429 input and output configuration
Added serial port format for SL30 nav/comm radio
Added serial port format for SL40 comm radio with no serial input
Added altitude alerter to PFD
Added Units setup page to main menu when in normal mode
Changed PFD to declutter data fields in extreme attitudes
Improved display of XM Info page when no subscription is active
Improved display of density altitude configurable field
Improved map display when following an external GPS navigation source
Includes GSU 73 software version 2.11

Changes made from version 2.30 to 2.40:

Added support for following multiple external GPS navigation sources via RS-232 Aviation data inputs.
Added density altitude to list of selectable data bar fields.
Added advisory message to indicate when GDU is in demo mode.
Added advisory messages to indicate anomalous magnetometer data.
Added indicators to comm config page to show RS-232 input port status.
Added ability to configure default backlight mode.
Added dislpay of alternate UTC time offset value when reviewing an airport that observes daylight saving time.
Improved time display when time format is set to UTC or 24-hour.
Improved configuration of measurement units, position settings, and time format.
Improved display of weather data.
Improved reliability of XM subscription activation.

Changes made from version 2.20 to 2.30:

Added sound setup page to main menu and changed message tone volume to be user-controllable.
Added map setup item to control size of road name text.
Added audio feedback when changing alert volume level.
Improved display of terrain map when no data is available.
Changed WPT page and airport review page to advance to next item in list after tuning a comm frequency.
Changed XM icing forecast intensity coloring and nomenclature to be consistent with G1000.
Changed to silence 'Traffic not available' audio alert below 500 feet AGL.
Corrected issue that could possibly cause unit to lock up while changing OBS course.
Corrected values displayed on weight & balance page when using large weights.
Corrected label text on weight & balance configuration page.
Corrected minor cosmetic issues on flight plan pages.
General improvements to unit stability and performance.

Changes made from version 2.10 to 2.20:

Added display of plain-language PIREP text
Added menu option to main menu display setup page to allow recording screenshots to the SD card
Added menu option to display lat/lon position on Info page when system-wide position format is set to other than lat/lon
Added ability to display parachute jumping area airspace
Added ability to display park areas from detail maps
Added additional version information to Database Information page
Added support for sea surface temperature weather data (requires Master Mariner XM subscription)
Increased precision of XTK data field when HSI scale is set to 0.25 nm
Reduced volume of message tones
Improved unit software update process
Improved display of hilighted airways on map
Improved display of VST data field
Improved AOPA text display for certain airports
Improved XM subscription activation process
General improvements to unit stability and performance

Installation Instructions

Download the compressed update file onto your hard drive and extract it (.zip format).
Insert a FAT32-formatted SD card with at least 20 MB of free space into your card reader.
Copy the ''Garmin'' folder to the top level (root directory) of the SD card.
Safely eject the SD card.
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 6-8 for each display unit in the aircraft.
If required, software updates for certain connected LRUs and peripheral devices will be applied automatically.