GRT Sport EX and Horizon EX software change history

• EX 4.04 (2024-03-14)
  • Fix loading of Option Code slot 9 and add more slots

• EX 4.03 (2024-03-07)
  • Read AEM messages from CAN bus
  • Add Aux function for throttle position from CAN bus
  • Fix possible issues checking obstacles that are below sea level
  • Fix temporarily incorrect date when ARINC-429 time changes to 00:00:00
  • Add AD IAS Adjustment with Scale and Offset mode
  • Report runway surface quality Water separately from Hard or Soft
  • Fix reading integrity/accuracy data from uAvionix SkyFYX GPS
  • Fix RPM2 not reporting zero from EIS R66 when only the Tach 2 input was active and changed to zero
  • Fix lockups on newer systems when configuring dials with extreme label and tick intervals
  • Fix possible extremely incorrect OAT readings when OAT input is beyond interface limits or not connected

• EX 4.02 (2023-03-30)
  • Support EX hardware with serial number above 800

• EX 4.01 (2022-10-26)
  • Fix possible failure to display Discovery version information
  • Fix possible malfunction when a SAP airport can't be found
  • Fix software fault and reboot when using map cursor and many custom waypoints have been imported to the flight plan
  • Fix software fault and reboot when using map cursor and many user waypoints are loaded
  • Add scroll arrows to User Waypoint list
  • Fix AHRS input lockup after receiving a special data log message that isn't normally used
  • Lower minimum valid airspeed for newer High Speed to 24 knots

• EX 4.00 (2022-07-27)
  • Fix maintenance status message for non-remote EIS
  • Fix slow loading of Synthetic Vision terrain while in SLEW mode
  • Add echo Device Type for ESX (except ESX was discontinued)
  • Add "Garmin/Trimble No Error Code" to AltEnc formats to disable error code output. Some devices don't understand the error codes and may see them as a valid altitude (Lynx NGT-9000). If there's an error, the output will be suspended.
  • Fix incorrect GPS updates during demo playback in dead reckoning mode
  • Fix compatbility of AHRS and GPS serial input settings with other EFIS models
  • Add Vertical Speed Filter settings to smooth vertical speed display
  • Read 300F VDO fluid temp from EIS Model R66 Aux when scale factor is zero
  • Fix incorrect reprocessing of previous messages from the GTX330 serial input
  • Add flight director fixed V as attitude reference. Note: This forces ILS Type to Scales mode.
  • Fix terrain showing on split page with HSI
  • Fix XPDR indications during demo playback with SL70/STX165
  • Fix extra data on display link with SL30 VOR/ILS input
  • Fix repeated time updates and fractional offset with high-rate GPS inputs
  • Add Brightness Test page
  • Add full Gray Code Adapter module interface with serial passthru
  • Improve Synthetic Vision display performance when many runways are nearby
  • Fix EFIS model name in Bluetooth name
  • Fix invalid airspeed output in Fuel/Air Data S/Z messages when sensor reports invalid or negative pressure
  • Improve performance of Serial Port Combiner (SPC) input
  • Add Serial Port Combiner error counters to checksum status page
  • Update magnetic field model to IGRF13 2020-2025
  • Fix calibration comparison and sync of missing magnetometer serial number and add user override. Many magnetometers made before 2020 report their serial number as zero. This causes incorrect sync of calibration data between separate magnetometers. Magnetometer serial number zero is now ignored and requires an override to sync calibration data. The Mag Cal Data Sync menu now reports magnetometer serial numbers. If they are zero or otherwise incorrect, user can assign each magnetometer a number from 1-4 to match them up.
  • Fix possibly using magnetometer calibration sync data without checksum
  • Improve check of AHRS software versions and recommend updates on Power Up (ACCEPT) page
  • Add button to Load AHRS updates from Power Up (ACCEPT) page if a newer update is recommended
  • Update magnetometer orientation before every attempt to calibrate magnetometer
  • Add message about not detecting magnetometer to magnetometer calibration page
  • Read previously stored magnetometer calibration data directly from AHRS and draw it on graph
  • Add options for 3 and 5 cylinders
  • Add options to use older commands for SL30/SL40 control. The format changed a long time ago but units with older software are still in use.
  • Cross out XPDR box is there's no communication
  • Fix size limit of some messages over the display link
  • Add more conflict checks for "GPS from ADS-B Receiver" setting
  • Automatically ignore GPS from ADS-B Receiver if another input is configured as the same GPS
  • Show conflict messages before setting/help messages
  • Replace VERT A/P with FLT DIR button if Vertical Autopilot Functions are disabled or not available
  • Add remote EIS hourmeter offset. Remote EIS R66 doesn't have a way to update hourmeter so the only way to correct the display is to add an offset to every display that's directly wired to it.
  • Interpret 6553.5 hours from EIS as zero. Many EIS models start with this reset value for the first few minutes of engine operation.
  • Fix reading negative OAT from the EIS Model 2000 and "GRT-Chelton" serial formats
  • Fix possible software fault when reconfiguring serial port with Safe-Fly GPS control interface and TMAP mode
  • Fix XM Weather data looping back and flooding display link
  • Improve reporting of software faults in feedback reports
  • Add help text to several ADS-B settings
  • Change "GPS from ADS-B Receiver" setting to require Advanced ADS-B Receiver Settings so it is not incorrectly configured as often.
  • Fix updating invalid GPS track when GPRMC message is invalid and speed is near zero
  • Fix engaging temporary heading hold mode when pitch is engaged first without Vertical Autopilot Functions
  • Recalculate magnetic variation for old GPS modules. Add settings to force recalculation for any GPS.
  • Add 57600 to automatic baud rates used for USB ADS-B for pingUSB traffic receiver
  • Audio Output is now a standard feature
  • Add Trig COM adapter error counters to serial checksum page
  • Update ADS-B GPS interval for GPS Status page
  • Don't display invalid ADS-B timestamp in ADS-B Status
  • Add full remote interface for TailBeaconX with transponder functions and GPS input
  • Read incorrect status messages from older TailBeaconX SL70-compatible output
  • Fix reading built-in GPS software version from newer chips
  • Fix serial input alarm for VP-X Pro/Sport
  • Add minimum speed settings for AOA indexer and alerts
  • Add GRT Discovery ADS-B receiver interface. Sends aircraft identification, AHRS, and GPS data to receiver for filtering and app use. Can be used to update receiver software.
  • Fix handling an error condition when reading a corrupted plate or chart file
  • Clarify Bluetooth status messages that indicate when the adapter is not detected
  • Fix heading value conversion and invalid attitude formatting in checklist
  • Add ULPower ECU RS232 input
  • Save edited transponder code when IDENT is pushed to make it one step
  • Fix incorrect unit conversion on default decision height setting, it should always be feet.
  • Keep current VERT A/P mode if it's a normal altitude select mode when HDG/ALT button is pushed
  • Disable APGPS NMEA0183 Passthru mode by default. Many newer GPS receivers don't fill in everything so the EFIS should do it.
  • Add ForeFlight FPL file import from USB drive. These are the files attached when e-mailing a flight plan from ForeFlight.
  • Fix duplicate traffic from Stratux receivers and others that include rebroadcasts
  • Improve timeout handling when (Stratux) ADS-B serial stream is overloaded with traffic
  • Fix data format checks on many ADS-B input messages
  • Fix CAN "Bus Loopback Test" to actually transmit on CAN bus
  • Add support for PBS TJ100 PP-25A data from CAN bus
  • Fix possible data loading issue on Autopilot NMEA0183 GPGGA message
  • Change Discrete Output status text to Open/Ground for user discretes
  • Change Discrete Output default states to Open
  • Add alternate input labels for Carb Temp Input: Manifold Air Temp (MAT), Intake Air Temp (IAT)
  • Show N/E/S/W for cardinal directions
  • Fix configuration of fuel level integer/decimal mode when graph max isn't configured
  • Add more specific messages to AHRS Status line in AHRS Maintenance
  • Draw waypoint balloon poles from current altitude if ground elevation isn't available
  • Fix counting button inputs on each servo for single button configuration
  • Clarify "Weather" settings as being "XM Weather" or "XM WX"
  • Clarify upgrade package name in "not found" error message
  • Remove "PFD LOCK" function since it was too often activated accidentally
  • Improve responsiveness of file browser
  • Use file browser for Load EFIS Software, Load Navigation Database, Copy Terrain Database
  • Jump to newest matching file when file browser loads
  • Fix useless long check for linked copy of Jeppesen database when there's no display link
  • Reset and remove unused altimeter Scale Factor and Airspeed Bias for Adaptive AHRS
  • Deconfigure all modules for UART Test. UART Test only tests built-in ports now.
  • Rename ARINC module passthru port to AMPT Serial Port to make it clear how the setting works
  • Fix conflict checks for ARINC module passthru port
  • Add more conflict checks for Virtual GPS2
  • Ignore Virtual GPS2 setting if a real GPS2 input is active
  • Show default port number for original "Yes" setting of ARINC Module Connected
  • Remove Light Sensor from Analog Inputs page, EX doesn't have one
  • Add conflict checks between TT22/echoUAT Adapter and RS-485 Port
  • Extend EX GPS and the older GRT RAIM GPS message timeouts to prevent false alarms while configuring
  • Show Magnetometer Heading as inactive when external magnetometer input isn't detected
  • Improve Servo Response Test line colors and line thickness
  • Fix pitch error direction on Servo Response Test
  • Update SPC defaults to match newer defaults in Safe-Fly GPS (for echoUAT)
  • Fix clearing transponder code setting message when exiting menu in some cases
  • Sync selected heading first if a selected heading change causes a switch from the initial heading-hold mode to regular heading mode
  • Add GPS accuracy/integrity status in lateral status indicators (already in HXr proc beta)
  • Fix possible temporary issue when reconfiguring a port with Safe-Fly GPS with TMAP interface
  • Add NIC and NACp to GPS Status page
  • Fix clearing flight plan identifier search matches when identifier is cleared
  • Update buttons for context when flight plan identifier is cleared
  • Update buttons and reset cursor when copying flight plan identifier from map cursor
  • Rename identifier CLR knob to CLEAR
  • Rename identifier EXIT function to CANCEL when the identifier hasn't been changed
  • Add Cancel/Activate step when using direct-to buttons instead of immediately activating
  • Exit flight plan page when direct-to activation is confirmed
  • Always select active waypoint when opening plan page to make it easier to get details for the active waypoint
  • Make left knob also move flight plan editor cursor
  • Fix updating automatic direct-to history when the same waypoint is already in it
  • Add ENAV and GNAV to lateral autopilot mode in checklist
  • Expand flight plan nearest menus to match full map nearest menus
  • Make DETAILS function clear in nearest lists
  • Make SCROLL functions clear when viewing nearest details
  • Fix HDG knob still active on map when another knob function is active or the map is in SLEW mode
  • Disable CRS knob in SLEW mode
  • Remove PLATE and TAF buttons for non-airports and remove TAF buttons without weather input
  • Remove NEAREST METAR button without weather input
  • Rename WTHR FREQ to WX FREQ
  • Show uncorrected magnetometer heading and correction on Magnetometer Heading line
  • Add option for servo Controller Number 3. Controller 3 can't recognize itself so there are no slip alarms.
  • Add user waypoint selection with map cursor and touchscreen
  • Add CURSOR label to left knob when editing user waypoint
  • Improve touchscreen map object selection
  • Fix airspace still being highlighted when some other map objects are selected after it
  • Change GPS update timer sent to AHRS to better match what AHRS expects. This can improve alignment on ground when GPS position is intermittent.
  • Fix altitude used when calculating magnetic variation for the EX GPS and the older GRT RAIM GPS modules
  • Update settings menu immediately without saving to show other settings and show conflicts when configuring Safe-Fly/SPC and TMAP interface. This also makes the settings show up when playing a DEMO.
  • Clarify in GPS from ADS-B Receiver help text that it should only be used for a GPS that isn't otherwise connected to the EFIS
  • Add R66 label to EIS Model 4000/6000/9000 selection
  • Add EIS Model 2002 option to handle its different oil temperature input
  • Compute DEMO start time and date when saving first file if time wasn't available when the recording started and it is available when saving
  • Limit range of years used for magnetic variation
  • Fill in upper AOA Pressure line with AOA from internal Air Data module
  • Improve traffic window handling of heading/track availability
  • Read GTX remote status from serial input and add ability to copy GTX squawk code (beta feature needs more testing)
  • Add OAT units setting to display OAT in different units than main temperature units
  • Fix OAT when using external AHRS and OAT source is set to AHRS
  • Work around some newer Garmin IFR GPS models sending "ALT" instead of current waypoint identifier
  • Fix using invalid time/date from ARINC input before it's good and apply GPS date correction
  • Share AHRS OAT input over display link
  • Fix some airspeed triggers and counters acting faster than they should with Dual AHRS input
  • Prevent incorrectly correcting GPS dates in old DEMO recordings
  • Show HS next to air data module serial number if it's High Speed
  • Add VP-X volts and amps bar graphs and data box selections
  • Remove unused Aviation Status Data menu
  • Remove unused airspeed/altimeter display size settings

• EX 3.02 (2019-05-01)
  • Add "Show Traffic on HSI" setting to allow user to turn off traffic symbols within the HSI
  • Remove extra graphics cluttering the HSI on the PFD/HSI/ENG page. It should be the same as the PFD/HSI page.
  • Add "MAP - Internal" option for PFD data box to show internal manifold pressure from Remote EIS
  • Clarify servo direction test messages with "Roll Right" and "Pull Up"
  • Make sure the setting will be saved if the only action taken is reverse servo direction
  • Add GPS date correction to advance old GPS dates to the next GPS week number range. This is known to affect some WAAS GPS "15x-H" modules and the GRT LPV GPS.

• EX 3.01 (2018-12-06)
  • Fix invalid data appearing as valid on GPS Status page when multiple GPS units are connected
  • Recognize DGPS (WAAS) status from some older GPS units on the GPS Status page
  • Ignore invalid timestamps from ADS-B receiver
  • Allow for some clock error when storing ADS-B product time
  • Fix storing higher resolution GPS position from some GRT GPS units (this data is not normally used)
  • Fix software fault when receiving flight plans from the Bluetooth link
  • Add SV terrain database titles for India
  • Fix message about "invalid coarse magnetometer calibration" that doesn't apply to the attached hardware
  • Add TT22 GPS Input option for Trig TN72 SIL 3
  • Add TT22 Squat Switch option for automatic switch on GPS data only (works with TT22 SW 2.11)

• EX 3.00 (2018-06-08)
  • Automatically acknowledge temporary warnings from echoUAT TMAP after 10 seconds, and ignore false warning flags
  • Fix AHRS UNRELIABLE messages
  • If an AHRS religns in flight while in Dual AHRS mode, select the other AHRS and don't automatically switch back
  • Add an AHRS selection menu and display the selected AHRS in an inset
  • Add AHRS REALIGNMENT alarm when an AHRS realigns in flight with Dual AHRS
  • Fix alignment countdown with AHRS version 46
  • Hide ADS-B Status lines that aren't supported by the connected receiver
  • Hide SPC Input Counter when configured for echoUAT TMAP, it doesn't count in this mode
  • Fix AHRS indicator position
  • Fix the display of navigation database Cycle and Expiration in SET MENU
  • Prefer an AHRS without heading/track over an AHRS without any attitude
  • Send backlight level to the Bluetooth link so the app can use it for dimming
  • Don't show invalid coarse magnetometer calibration messages if the AHRS doesn't have an internal magnetometer
  • Add "Adapter" to TT22/echoUAT serial option to make it clear that it's used with the GRT Adapter
  • Add support for Remote EIS
  • Add Traffic Distance Filter

• EX 2.05 (2017-11-27)
  • Use ownship report address for filtering traffic
  • Fix false roll/pitch trim required warnings from non-controlling unit by detecting which unit is controlling the GRT servos.
    New setting in A/P Maintenance, Controller Number, sets controller. Set to 1 for the primary controller and 2 for the backup controller. Auto uses the display link ID.
  • Add a shortcut to the transponder functions by holding the first Next button on the PFD menu
  • Add data to the Bluetooth link to support future PFD/HUD graphics.
  • Show invalid altimeter box on split pages when altimeter is marked invalid
  • Don't show vertical speed if the altitude is marked invalid
  • Add analog-inputs-only option code AIN for Horizon package

• EX 2.04 (2017-10-09)
  • Fix PFD traffic on autopilot touch control panel split page
  • Add options to show TAS and GS in the airspeed tape

• EX 2.03 (2017-08-28)
  • Fix HSI bearing pointers and track offset when HSI falls back to track-up mode with AHRS in track mode
  • Fix incorrect add/remove options in waypoint mode after touching a map object

• EX 2.02 (2017-08-11)
  • Fix servo status displayed for servo not controlled by the display unit
  • Fix matching of waypoints to displayed navaids and fixes on map
  • Fix handling more than 16 satellites from GPS (fix software fault with Internal GPS set to GPS2)

• EX 2.01 (2017-07-20)
  • Fix missing autopilot touch control panel background

• EX 2.00 (2017-07-06)
  • Improve lateral autopilot performance with Adaptive AHRS (requires AHRS software version 64 or newer)
  • Add wind correction for more accurate winds (SET MENU, Primary Flight Display, Wind Correction)
  • Add Roll Trim Required and Pitch Trim Required alarms when servo slipping is detected
  • Add ability to send compliant GPS data over TT22/TMAP interface
  • Send air data to TT22/TMAP interface for ADS-B air-ground switching (requires Adapter Software version 5 or newer when used with adapter)
  • Add Squat Switch setting "AHRS and GPS data" for ADS-B air-ground switching using air data and GPS data
  • Fix loading GRT Trig Transponder Adapter software update on dual control adapter with both channels active
  • Add support for echoUAT RS232 TMAP interface through Safe-Fly GPS
  • Improve touchscreen interface on map
  • Enable touchscreen interface on all full-screen map pages
  • Add touchscreen functions to PFD (airspeed, altitude, heading)
  • Add autopilot touch control panel (touch above altimeter tape to open it)
  • Fix big jump in slew mode with some short touch presses
  • Mark Garmin test GPS data as flagged
  • Mark Avidyne test GPS data as flagged
  • Fix position of obstacles on map in SLEW mode
  • Fix heading in instructions for doing 180 during true airspeed calibration with single AHRS
  • Add 440, 540, and 550 EXT button labels for Avidyne IFD units
  • Adjust display limits of heading-track difference
  • Fix oil pressure and oil temperature bar graphs showing bad data when not connected (Basic Engine Option)
  • Fix internal GPS data interruption every time any setting is changed
  • Fix serial conflict checks for internal GPS
  • Fix serial conflict checks for Safe-Fly GPS
  • Add EGT1 and EGT2 bar graph options
  • Add FLIGHT PLAN button to PFD menu on units without MAP option
  • Fix confusing "No Communication" message on magnetometer data sync page
  • Add airspaces to User Database
  • Increase size limit for User Database
  • Fix configuration of Serial Port Combiner ports after serial test

• EX 1.08 (2017-04-12)
  • Adjust colors for better contrast

• EX 1.07 (2017-04-06)
  • Read AHRS data from a Sport WS/HS/SX when no AHRS input is configured
  • Fix "Touchscreen: No Communication" message

• EX 1.06 (2017-02-15)
  • Add Air/Ground Transition Speed setting (mainly for ADS-B)
  • Improve restart of some data inputs when partial serial data is lost
  • Fix menu changes when using option code import function
  • Add SFC option to Performance/Fuel Box 2
  • Fix serial alarms for full Gray Code Adapter interface
  • Add support for Safe-Fly GPS module and standalone Serial Port Combiner

• EX 1.05 (2016-12-14)
  • Add support for GRT Gray Code Adapter
  • Fix RCAN Serial Port Rate default
  • Fix possible passthrough port interference with Remote CAN software updates
  • Use ADS-B time if time and date are not available from another source

• EX 1.04 (2016-12-08)
  • Fix OAT display with Basic Engine option
  • Fix software fault in some configurations without Basic Engine option

• EX 1.03 (2016-12-02)
  • Add Basic Engine option

• EX 1.02 (2016-11-28)
  • Fix NAV MODE EXT1 button

• EX 1.01 (2016-11-15)
  • Add initial touchscreen support

• EX 1.00 (2016-11-09)
  • First release