+x

guille - 12/2/2017 5:11:59 PM

Thanks for the information ! This means, if I understand, that the Android device is the source of error  using GLO and that the internal GPS of my IPAD provides almost the same information of the GLO. I will remake the tests more carefully, without looking at the Galaxy next time I fly with a passenger in charge of the devices ... Are you using an IPAD cellular+wifi ?

If you use the Bluetooth GPS app to connect your android device to the garmin GLO you should check the settings of the Bluetooth GPS app to ensure that the Geoid correction is not being applied to the GPS output.

+x

Martin Bech - 12/3/2017 3:12:49 PM

I use Ipad celluar + wifi. I have also tested the solution when flying commercial with the garmin GLO at the window and Ipad with SD active. If I turn of GLO I loose connection to gps sattelites.

Thanks a lot ! I had the sensation that nothing changed connecting and disconnecting the Bluetooth connection to the IPAD, your test confirms then that it is better with the GLO. In the conditions I tested, there was no difference. Good to know there is a difference that justifies the use (and the purchase) of GLO.

+x

Martin Bech - 12/5/2017 6:07:33 PM

New info: Just had a commercial trip from Riga to Billund and used GLO with my Ipad. About 20 miles before Billund the altitude went to 0. The airplane in SD still moved along the route but altitude still 0. Turned of GLO and Ipad gps worked and changed to correct altitude. After testing several conditions with GLO I decide to scrap GLO - it is not always working correct.

Thanks again for the information. Today I tested again during a local flight on my region, from sea level to 3000 ft elevation, and the values of altitude given by the internal GPS of the IPAD and the ones given by the GLO where almost the same. So, even if the GLO may be better in some circunstances, it appears that the values given by the internal GPS are also good.  And both may have failures ... so, for security I keep also the Android device as backup. Anyway, I used my former IPAD four years, flying more than 500 hours and I had never a failure of the internal GPS. Only problem was the error concerning altitude (and height of course) The IPAD mini 4 appears to be also good concerning altitude,