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GRT Horizon HX software change history
- HX 11.02 (2019-05-01)
- 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.
- HX 11.01 (2018-12-17)
- 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)
- 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.
- HX 11.00 (2018-06-08)
- Fix servo status displayed for servo not controlled by the display unit
- Fix matching of waypoints to displayed navaids and fixes on map
- Accept more than 12 satellites from NMEA0183 GPS
- Fix HSI bearing pointers and track offset when HSI falls back to track-up mode with AHRS in track mode
- 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
- 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 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
- HX 10.00 (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)
- 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
- 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
- Fix serial conflict checks for Safe-Fly GPS
- Add EGT1 and EGT2 bar graph options
- Show serial number on Option Codes page
- 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
- HX 9.01 (2017-04-24)
- Compatibility with new processor
- Mark Garmin test GPS data as flagged
- Add airspaces to User Database
- Increase size limit for User Database
- HX 9.00 (2017-02-15)
- Fix confusing AHRS software update messages from another screen updating software
- Add number and time file type to USB Flight Data Logger
- Add always-record mode to USB Flight Data Logger
- Add EFIS voltages to USB Flight Data Logger
- Improve display of AHRS software version with Dual AHRS
- Fix temporary incorrect message about magnetic field interference when booting Adaptive AHRS
- Fix incorrect TAS correction from True Airspeed Corrections table in some cases
- Add option to send turn-on sequence to some ADS-B receivers connected via USB
- Fix duplicate text in GPS Status page
- Reset GPS HOLD mode when an internal direct-to is set or reset
- Add Airspeed Discrete Output function to set a discrete output based on airspeed
- Use time updates from GPS that isn't being used for navigation
- Add CHT Graphics setting to turn off CHT graphics or replace with Coolant Temperature
- Add Low MFS setting for weak magnetic fields in southern Africa
- Fix use of landing threshold and displaced threshold elevation in SAP from some data sources
- Fix reading negative cabin pressure from CO Guardian
- Add Plate Source setting to enable PDF Plates while ChartData is connected
- Fix reading audio files with extra chunks
- Fix handling of missing ChartData database
- Add "Relay Ethernet to Serial" setting to transfer some activity between Ethernet and serial links
- Make both knobs work on frequency selection pages
- Fix selected knob when returning from frequency selection pages
- Add special handling for data from Stratux ADS-B receiver
- Fix delay in air-ground transition for transponder and ADS-B Out modes
- Compute fuel flow and percent power for MW Fly engine
- Increase servo trim audio alert timer to 5 seconds
- Add Roll Servo Damping and Pitch Servo Damping settings
- Add filtering to pitch torque sense
- Add Servo Response Test page
- Add Wind Data output
- Add 2000 to VFR Squawk Preset list for South Africa
- Add OAT Units setting
- Shorten glideslope capture delay to 1 second for GPSV mode
- Improve the appearance of the 1 degree down pitch ladder bars
- Add 38400 to list of automatic baud rates for USB ADS-B
- Send GPS altitude over the display link
- Update processing of advanced GPS inputs for "Autopilot (NMEA0183)" serial output
- Add GPGGA to "Autopilot (NMEA0183)" serial output
- Improve output rate of "Autopilot" serial output
- Fix use of pressure altitude received through GPS as GPS altitude
- Add APGPS NMEA0183 Passthru setting for devices that can't handle advanced GPS format changes
- Use ADS-B time if time and date are not available from another source
- Add Serial Bypass display link setting for upgraded systems without wiring changes
- Fix RCAN Serial Port Rate default
- Fix possible passthrough port interference with Remote CAN software updates
- 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
- Add support for Safe-Fly GPS module and standalone Serial Port Combiner
- HX 8 (2015-11-09)
- Add TIS-B File Ghost Filter to detect and filter out an anonymous ownship TIS-B target
- Remove confusing help text from the Roll/Pitch Adjustment settings
- Fix the storage of Flight ID settings
- Update magnetic variation data
- Add support for the Remote CAN module
- Fix the help text for the Ethernet Link alarm
- Add support for new ARINC module hardware and update files
- Fix possible communication recovery failures with ADS-B, the new ARINC module, the Display-Unit Link, and the Trig transponder adapter
- Fix delays while waiting for the USB Flight Data Logger to stop
- Fix the display of negative elevation on the airport DETAILS page
- Fix an ADS-B input lockup when processing some ADS-B METAR data
- Fix exit from TAF page
- Use user transponder mode when sending ADS600B mode
- Use user-configured units in nearest lists
- Add option code functions
- Update the Bluetooth link to support the new HUD mode used by the glasses
- Add support for the AOA sensor in the Adaptive AHRS with AOA module
- Update GPS Input options for TT22 to include ADS-B-compliant formats
- Fix cursor in Flight ID and Mode S Address editors
- Improve the processing of servo responses when the servo software version isn't known
- Fix the processing of incompatible and unconfigured settings when comparing limits with other displays
- Fix missing checks for high priority Analog Aux alarms for Analog Inputs 7 and 8
- Add notices about uncalibrated pitch servo trim
- Enable the heading select knob when setting VRATE
- Fix the date separator on the ADS-B Status page
- Prevent the sending of ADS-B and XM WX frames over the serial Display-Unit Link when both the Ethernet and serial port links are enabled
- Clarify the XM WX Inter-Display Link settings
- Update serial and USB conflict checks
- Add bar to pressure unit options
- Exclude Analog Aux limits from Compare Limits function
- Add VFR Squawk Preset setting
- HX 7 (2015-03-05)
- Fix user waypoint editor deleting edited waypoint
- Fix user waypoint editor not allowing ID of relative waypoint to be changed
- Fix rounding errors when loading user waypoint coordinates into editor
- Show all User Waypoints on map within range limit setting
- Fix accelerated increment with Logbook edit knob
- Add audio alerts
- Fix incorrect heading of traffic window/inset when map is NORTH UP or not shown
- Fix cursor selecting TFR's that aren't shown
- Show a black symbol in SHOW METARS mode when the airport doesn't have a METAR
- Fix minor METAR symbol size and color issues
- Use ADS-B GPS data for Autopilot serial output
- Share ADS-B GPS input over the display link
- Compute magnetic variation for ADS-B GPS input
- Show uncorrected probe value on Fuel Data Scale page
- Add SET button to Fuel Data Scale page to enter the current probe value into the selected box
- Fix software fault when an XM WX radar arrives with a bad size
- Fix Load SV Database functions trying to load without internal storage
- Add 230400 to list of serial rates to work with serial ADS-B receivers (Ports 3-8 only)
- Add ADS-B GPS Type setting to enable workarounds for XGPS170 ownship encoding problems
- Fix recording of GRT LPV GPS input in DEMO
- Prevent A/P LEVEL mode from changing the selected altitude if another screen's mode isn't LEVEL
- Fix flight plan timeouts with GPS units that don't send the RTE sentence frequently
- Fix the positioning of some graphics immediately above knob menus
- Fix weather/terrain status text covered by tapes on NORTH UP page
- Add support for new GPS/GNSS module
- Fix MSG button showing on pages that don't display alarms
- Fix heading average and rounding during TAS calibration
- Ignore extremely high fuel quantity from EIS
- Add setting to always ignore fuel quantity from EIS
- Add support for Adaptive AHRS
- HX 6c (2014-10-03)
- Add SVE AGL function to show height above ground based on Synthetic Vision database
- Add the ability to use the GPS attached to an ADS-B receiver as GPS1 or GPS2
- Wait 20 seconds before detecting transition out of in-flight mode based on speed
- Add button to limit alarms to only Oil Pressure and Fuel Pressure
- Don't reset alarm inhibits on transition to in-flight
- Add Enroute HITS. This version requires coordinates for the origin and destination of the leg and draws boxes along the course between them.
- Show TT22 boxes and buttons during DEMO playback when configured
- Record transponder code changes in the DEMO
- Add option to select between ETE and ETA for map destination box
- Fix delay in updating map cursor selections after changing range
- Show compass ring on the NORTH UP map
- Show tapes on NORTH UP map if enabled
- Fix automatic ILS inbound course when using SL30 OBS control and "When Selected" OBS output
- Fix inconsistent selected course displays and controls with respect to "Show GPS on Loc/GS" setting
- Fix clipped graphics in SLEW mode when map tapes are enabled
- Add ADS-B TFR's
- Add ADS-B call sign on traffic symbol
- Add more serial noise filtering for servos
- Add initial support for GRT LPV GPS as a GPS input
- Add individual TIT bar graphs and option to not show TIT bars with EGT bars
- Fix highlight of destination waypoint of internal flight plan when it's not in the database
- HX 6b (2014-08-22)
- Send VP-X system and device configuration over the display link
- Fix a software fault on the flight plan page when deleting some waypoints and then adding several more
- Fix a software fault and reboot when reading bad chart files
- Fix selected altitude starting in 10's mode in A/P engage menu
- Fix regular menu appearing after selecting SAP runway
- Change old GOTO menu labels to direct-to symbols
- HX 6a (2014-03-04)
- Save the background PFD setting on the FLIGHT PLAN page
- Fix the directory used for FG airport diagrams
- Write a header for the USB Flight Data Logger if the file is empty
- Add EIS Volts to the USB Flight Data Logger
- Add separators in the Date and Time columns for the USB Flight Data Logger and give the system timer a dedicated column
- HX 6 (2014-02-17)
- Don't show no-data boxes from ADS-B if also showing a valid XM WX radar
- Fix bad identifier lookups when adding new identifiers with the User Database function
- Include new identifiers from User Database function in identifier searches
- Fix processing of validity flags in Aviation GPS format
- Fix airspace highlighting on NORTH-UP map view
- Improve handling of changes in menu options when settings are changed
- Add option for ETA in PFD user data boxes
- Enable SHOW METARS mode on all map pages
- Hide most extra databases in SHOW METARS mode
- Show alternate METAR/TAF range/bearing from selected airport and add configurable search limit
- Count and display the number of ADS-B ground stations from uplink data. TRAFFIC indicator changes to ADS-B #.
- Show full user Aux name when showing alarm abbreviation
- Fix visibility of Life Guardian settings without a Life Guardian model
- Update list of SV database titles
- Add minimum voltage setting for analog dimmer input
- Add Bluetooth link for Android app, including flight planning, radio tuning, and remote PFD
- Add georeferenced plates, diagrams, sectionals, enroute low, and enroute high charts
- Display map in SLEW mode using positions from the flight plan if a GPS position is unavailable
- Add support for remote Trig Transponder
- Only show WIND functions for supported inputs (XM WX)
- Add USB Flight Data Logger for continuous recording of a subset of data at a selected sampling interval
- Fix lateral LPV2 indicator
- Improve AHRS software loader
- Add baroset output option for ARINC
- Make synthetic vision horizon line thicker
- Allow the Jeppesen database to load into the whole EFIS as a system