Marauder Posted April 4, 2019 Report Posted April 4, 2019 In case you missed this: https://www.faasafety.gov/files/notices/2019/Apr/FDNY_19-37_GPS_Flight_Advisory.pdf Sent from my iPad using Tapatalk Pro 1
Marauder Posted April 4, 2019 Author Report Posted April 4, 2019 (edited) And another one: https://www.faasafety.gov/files/notices/2019/Apr/AFSMO_19-10_(Revision_1)_GPS_Flight_Advisory.pdf Sent from my iPad using Tapatalk Pro Edited April 5, 2019 by Marauder
carusoam Posted April 5, 2019 Report Posted April 5, 2019 Fixed Marauder link... https://www.faasafety.gov/files/notices/2019/Apr/AFSMO_19-10_(Revision_1)_GPS_Flight_Advisory.pdf -a- 1
Marauder Posted April 5, 2019 Author Report Posted April 5, 2019 And yet another one. Someone preparing for a war? https://www.faasafety.gov/files/notices/2019/Apr/ADW130_19-01_(Revision_1)_GPS_Flight_Advisory.pdf Sent from my iPhone using Tapatalk Pro
Marauder Posted April 5, 2019 Author Report Posted April 5, 2019 Hey Anthony! Fix it for me! I’m late for a meeting!Sent from my iPhone using Tapatalk Pro
carusoam Posted April 5, 2019 Report Posted April 5, 2019 1 hour ago, Marauder said: And yet another one. Someone preparing for a war? https://www.faasafety.gov/files/notices/2019/Apr/ADW130_19-01_(Revision_1)_GPS_Flight_Advisory.pdf Sent from my iPhone using Tapatalk Pro try this one on for size.... https://www.faasafety.gov/files/notices/2019/Apr/ADW130_19-01_(Revision_1)_GPS_Flight_Advisory.pdf Something doesn’t want to make this easy.... -a- 1
moodychief Posted April 5, 2019 Report Posted April 5, 2019 Makes me glad I still have my steam gauges.
FastTex Posted January 18, 2020 Report Posted January 18, 2020 And here is another one FLIGHT ADVISORY - GPS Interference Testing 16 – 24 January 2020 Off-The-Coast What's the level of concern? Have you guys experienced issues in similar situations? I know I can use VOR, etc... It should not impact flying outside of the dates in the advisory (below). I will be flying on the 20th in SC and AL... 16 JAN 20 1200Z – 2100Z 17 JAN 20 1330Z – 1700Z 18 JAN 20 1700Z – 2359Z 23 JAN 20 1200Z – 2359Z 24 JAN 20 1130Z – 2359Z
N201MKTurbo Posted January 18, 2020 Report Posted January 18, 2020 We get those almost daily around here for the last 5 years or so. 1
Gagarin Posted January 18, 2020 Report Posted January 18, 2020 (edited) On the early days of GPS you needed to have LORAN C for redundancy. Trimble came out with the TNL 3000T GPS/LORAN C navigator that would operate on LORAN mode in case of GPS unavailability. Wish the LORAN C network still available. Later on the US gov. was to improve to eLORAN for accuracies of those of GPS. I had an Apollo 618 LORAN C and love it. Opens image gallery Mouse over to Zoom - Click to enlarge Edited January 18, 2020 by Gagarin
Jerry 5TJ Posted January 18, 2020 Report Posted January 18, 2020 As backup for those pesky GPS outages — 1 1
Hank Posted January 18, 2020 Report Posted January 18, 2020 4 hours ago, FastTex said: And here is another one FLIGHT ADVISORY - GPS Interference Testing 16 – 24 January 2020 Off-The-Coast What's the level of concern? Have you guys experienced issues in similar situations? I know I can use VOR, etc... It should not impact flying outside of the dates in the advisory (below). I will be flying on the 20th in SC and AL... 16 JAN 20 1200Z – 2100Z 17 JAN 20 1330Z – 1700Z 18 JAN 20 1700Z – 2359Z 23 JAN 20 1200Z – 2359Z 24 JAN 20 1130Z – 2359Z Looks like the 20th won't be an issue. So far, despite these things in the Atlantic and Gulf, I've not had problems. Yet. Just have a functioning VOR and maybe an updated Low Enroute and you should be fine. I flew 06A-->6A2 and back, having left my freshly-updated Garmin card at home, sitting on my tablet. So I flew visually, by pilotage, and even the cloud buildup on the GA/AL line didn't throw me off significantly. But I got my license in a 172 with only a single VOR and an ADF, but the local NDB was unusable beyond 10 miles so I never touched the ADF. Children of the Magenta Line, beware!!
PT20J Posted January 18, 2020 Report Posted January 18, 2020 Here's an interesting article, especially the part about the effect on the jet's autopilot. Seems like more and more avionics includes GPS-aided AHRS -- kind of makes one wonder... https://www.ctsys.com/blog/entry/how-interference-testing-affect-gps-navigation.html Skip
LANCECASPER Posted January 26, 2020 Report Posted January 26, 2020 All kinds of GPS outage in Texas this past Friday Jan 24.
PT20J Posted January 26, 2020 Report Posted January 26, 2020 I’m really interested to know if they jam all the GNSS signals, or just GPS. If it’s just GPS, then mulit-system devices like iPad and Stratus might still work. Skip
N201MKTurbo Posted January 26, 2020 Report Posted January 26, 2020 3 minutes ago, PT20J said: I’m really interested to know if they jam all the GNSS signals, or just GPS. If it’s just GPS, then mulit-system devices like iPad and Stratus might still work. Skip We will probably never know.
PT20J Posted January 26, 2020 Report Posted January 26, 2020 Just now, N201MKTurbo said: We will probably never know. Need someone to fly through the area with and see if panel mount unit fails but portable with multi sensors functions. Good excuse to go flying!
N201MKTurbo Posted January 26, 2020 Report Posted January 26, 2020 The only strange thing I've ever seen was flying back from San Diego a couple of years ago. I was just east of Yuma about 10 feet outside the restricted area surrounding the Yuma Proving Grounds. I was showing a traffic target about a mile off my left wing on my iPad with Stratus. I didn't have built in traffic at the time. It was not my shadow or a false return from me. I had everyone in the plane looking for this traffic. It was at my altitude. We saw nothing. The target then accelerated to a very high speed until it was a couple of miles ahead of me. It sidestepped to the south and now was about 1/2 mile off my right wing. It then slowed down to about 50 KTS until I caught up with it, it then stayed in formation with me for a few minuets. It then climbed a thousand feet, turned north and flew directly over me at high speed. Nobody in the plane saw anything out the window, and we were looking real hard.
David_H Posted January 26, 2020 Report Posted January 26, 2020 Perhaps testing is being performed for GPS backup systems. https://www.gpsworld.com/gps-backup-demonstration-projects-explained/
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