GRT Avionics

The words in the EIS User Manual (Rev L) only mention installing a 27K Ohm resistor between the instrument and the mag P-lead. I found the info quoted below in the Dynon Skyview install manual about what value resistor to use with the Dynon EMS which might help explain why GRT ships both resistor va...

My engine is a Lycoming O-360 A1A. The manifold pressure is taken from the pressure port at the bottom right aft corner of cylinder #3. Had to remove a plug on the engine in this location and install an AN8164D fitting. Teflon hose connected to this fitting routed to a AN bulkhead fitting on the fir...

Thanks Bob, My concern was that a DU would only allow one serial port output to be assigned as an AHRS configuration output. With a Dual ADAHRS unit connected to a single DU, in the SET MENU > "AHRS Maintenance" function, is each AHRS individually accessed to set the AHRS orientation and A...

Is is possible to configure both AHRS in a dual Adaptive ADAHRS from a single Hx Display Unit. The words in the "Horizon Hx Wiring Supplement for units shipped after Jan 2013" specify that "Each AHRS Unit can be controlled only by one Display Unit" but, the diagram on page A-5 'S...

The EIS has an Engine Hour Meter and Flight Timer that I find useful. You can have these values displayed in your electronic "Check List" by embedding their codes in the check list text (item FLIGHT TIME - %23% and item HOURMETER - %21%). I have them displayed in my "Engine Shutdown c...

Bob, For what its worth, a Dynon Skyview equipped friend of mine saw the same "Air on Ground" failure in his ADSB performance report from the FAA a couple of days ago. He has the remote Dynon transponder which looks to be just a re badge'd version of the Trig TT22. He wondered if it was be...

First, the only way I know to exit the SET LIMITS pages once you have entered them, is to use the NEXT button (right side button) and cycle thru all the settings. If have completed the changes you wanted to make, then just hold the right button down and the EIS will rapidly cycle to the end of the s...

I think you should be using pin 34, Tx1 A/P Serial Output to drive the Vizion 385 from the GRT SX EFIS. The SX Installation Manual defines this RS232 serial output for transmitting the internal GPS data plus heading, altitude, etc. to an external autopilot like the Vizion 385. On my Sport HS EFIS, I...

This question was asked some time back but no one bothered to post an answer so here goes. When you are on the Digital Leaning page (the one with a "L" in the lower right hand corner), Call up the "SET LEAN POINT?" prompt by momentarily pressing the center and right buttons. Then...

Thanks all for responding to my post about the remote Trig xpnder interface/operation with the Sport SX. GRT tech support provided the details listed below and confirm the comments provided in the previous posts. The Sport and Trig interface will be much the same as the HXr. It will be slightly diff...