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