flumag Posted May 25, 2018 Report Share Posted May 25, 2018 after going through a bit of an avionic upgrade in my M20K I realised that my Garmin 750 and 650 interferes with my Spot3 (www.findmespot.com). Both GPS loosing there connection/ position frequently (I asume in the transmission mode of the the spot). The Spot was placed on the glare shield and the antennas are mounted as first on top of the plane behind the wind screen. The spot is using the Globalstar satellite network so far as I remember. I was using the spot for quite some years and I especially liked the tracking, and alert option over some longer flights over the North Atlantic. Does anyone have similar experience? any solutions? does the new SpotX has the same issue? Thanks Hendrik Quote Link to comment Share on other sites More sharing options...
Oscar Avalle Posted May 25, 2018 Report Share Posted May 25, 2018 I don't have a solution but I had a similar problem with my GDL 51. It interfered with the COM part of the 750 Quote Link to comment Share on other sites More sharing options...
Vlakvark Posted May 25, 2018 Report Share Posted May 25, 2018 I had the same issue 1 Quote Link to comment Share on other sites More sharing options...
81X Posted May 29, 2018 Report Share Posted May 29, 2018 I had the same issue during my checkout. My instructor had his spot on the back seat and it caused a LOI on my 750. I also think it was during the transmit cycle. Good instructor, bad spot. No known fix from me other than to ditch the spot. Quote Link to comment Share on other sites More sharing options...
flumag Posted June 2, 2018 Author Report Share Posted June 2, 2018 Thanks for the feedback. I spoke to spot. It seems they are aware of the issue and the only recommendation that I got was to increase the distance between GPS antennas, GPS device and the Spot. Not really a reliable option for me and a spot in the baggage compartment is not very use-full. So the only option to me is selling the spot and cancel the subscription. does anybody has experience with the Garmin inReach? Its a satellite messenger as well but is using Iridium instead of Globalstar. If Oscar had an issue with the GDL51 it seems similar with Iridium. Thanks Hendrik Quote Link to comment Share on other sites More sharing options...
Jerry 5TJ Posted June 2, 2018 Report Share Posted June 2, 2018 I have been testing a beta of the Airtext LT system. Airtext Airtext is an Iridium system. I used it with its small antenna sitting on the glare shield right above the two GTN750 with no problems. Quote Link to comment Share on other sites More sharing options...
flumag Posted June 2, 2018 Author Report Share Posted June 2, 2018 sounds good Jerry, does the Airtext LT offers any tracking option beside the text's? Quote Link to comment Share on other sites More sharing options...
flumag Posted May 17, 2019 Author Report Share Posted May 17, 2019 now was the interference also reported from the FAA. https://www.ainonline.com/aviation-news/business-aviation/2019-05-14/faa-warns-gps-interference-spot-peds?utm_campaign=AIN%20Alerts&utm_source=hs_email&utm_medium=email&utm_content=72761047&_hsenc=p2ANqtz-87KznVsR6hqOJpJLsdhAN7hzlXmHcW1B7CtTxLsXxZBGs-4fM7-yoJczG0qKPZHrt0td-Mzr0OzWyKzcs_xuCpzEOKuBjGNNzN2qSReOAP2h2NG0U&_hsmi=72761047 Quote Link to comment Share on other sites More sharing options...
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