RE: GRT with Android Tablet
I have the GRT Hx and use the GRT Android app (available free download from the GRT website). The app communicates with the GRT Hx (and Hxr etc.) via Bluetooth and requires a USB Bluetooth adapter plugged into one of the USB ports of the GRT EFIS to function. I got the Bluetooth adapter that GRT recommends but guessing it will work with other brands. I don't remember the price but think the BT adapter was about $15.00.
The Android app works very nicely for transfer of flight plans from phone to HX. Easy to add wpts, delete flt plans, store favorite flight plans etc. You can create a flight plan at home and then transfer to GRT EFIS once you are at the aircraft. Way quicker than typing in a flight plan on the EFIS.
It also can also provide a sort of a simple EFIS for say someone sitting in the back seat of a tandem aircraft and display parameters like airspeed, altitude hdg etc that are displayed on EFIS in reat time. The app also can be used to tune a VHF com radio (SL 30 or similar) if the radio is wired to one of the GRT EFIS RS232 serial ports.
I have installed the app on a Samsung S3 and a OnePlus 5 Android phone with no issues and would expect that there would not be any issues with the app installed on an Android tablet. You must have Bluetooth enabled on the Android device, and I learned by accident that you need to exit the app correctly or you will wind up with multiple copies of it executing on the android device which causes it to behave erratically.
Last edited by Isaac : 01-02-2018 at 10:37 PM.
Reason: add addition information