Copyright © 2015  Grand Rapids Technologies, Inc.

Electronic Flight Instrumentation for Experimental Aircraft Since 1991

Current AHRS Software

AHRS Beta Software

This section contains software in the development or testing stage for customers interested in testing new features before a final release.  The software below may be incomplete or have unexpected behavior.  Never use in instrument conditions or other situations where EFIS failure will affect safety of flight.

The most current release of the AHRS software is included in the Display Unit update files.  Most GRT EFIS users will never need to use this page.  However, there are times when customers request AHRS-only updates or would like to try beta testing new AHRS software.


*Important:  Before updating software, please read the AHRS Software Update Instructions & Revision History.*


New! - AHRSUp files can be loaded directly by using SET MENU, AHRS Maintenance, Load AHRS Software, pushing USB when prompted, and selecting the file from the list.  (Requires latest HX/HXr/SX display software.)


   Display Unit

   Version

Release Date

Notes


 Horizon HS

AHRS 46

(0.46)

12/17/2015

Improves attitude accuracy while in turn during turbulence. This is a minor change that has been well tested and will become the standard software at the end of beta testing.


 Horizon WS


 Sport HS


 Sport WS


   Display Unit

   Version

Release Date

Notes


 Horizon HS

AHRS 43

(0.43)

01-Jan-2012



 Horizon WS


 Sport HS


 Sport WS

Download Download Download Download Download Download Download Download

AHRS Software files for older displays

AHRS and Adaptive AHRS Software for HX/HXr/SX


   Display Unit

   Version

Release Date

Notes

Download

AHRSUp file

Horizon HXr

Horizon HX

Sport SX

Includes both:

AHRS 43

&

Adaptive AHRS 59

AHRS

01-Jan-2012


Adaptive AHRS 29-May-2015

Important Altimeter Calibration change for Adaptive AHRS 57 and Mini AHRS 57 - READ ME


AHRS 58 fixes jumping temperature readings from an unconnected OAT input.

AHRS 59 adds support for the AOA sensor option.

View Adaptive AHRS software change history.


   Display Unit

   Version

Release Date

Notes

Download

AHRSUp file

Horizon HXr

Horizon HX

Sport SX

Includes both:

AHRS 46

&

Adaptive AHRS 61

1/04/2016



Improves attitude accuracy while in turn during turbulence, and due to some cases of vibration (adaptive AHRS only). This is a minor change that has been well tested and will become the standard software at the end of beta testing.