Got this NOTAM right after flying yesterday. Interesting they are altering (??) the GPS as low as 50 feet AGL out 246NM radius on some dates over a four week span.
https://www.faasafety.gov/files/notices/2016/Oct/NAWDC_16-06_GPS_Flight_Advisory.pdf
Fwiw, I see we also heard on news we moved to DEFCON 3 from 5 so that might be some of this.
More on that here: The DEFCON Warning System
https://www.faasafety.gov/files/notices/2016/Oct/NAWDC_16-06_GPS_Flight_Advisory.pdf
Fwiw, I see we also heard on news we moved to DEFCON 3 from 5 so that might be some of this.
More on that here: The DEFCON Warning System