I totally agree that they get priority, and understand there will not physical
blackout for the whole period.
But the linked document said it was approved for any time they need during the
month for 400 miles around White Sands. That is nuts! You would think they
could narrow it down to days, or even hours, maybe share that information.
- iPhone mail
On Apr 13, 2017, at 3:12 PM, James Dougherty <jafrado@xxxxxxxxx> wrote:
GPS and the NAVSTAR constellation is a matter of national security; anything
done
here should preempt civilian activities!
Now ... take another look at the dates on that, was hoping someone would see
this ..
It is not a month long blackout period - and in fact, this event is not even
part of NAVSTAR testing (e.g. CNAV).
On Thu, Apr 13, 2017 at 4:18 AM, Eric Melville <eric@xxxxxxxxxxxxx> wrote:
These drive me absolutely nuts. How do they get approved for monthlong
blackout periods?
- iPhone mail
On Apr 13, 2017, at 12:35 AM, James Dougherty <jafrado@xxxxxxxxx> wrote:
Your GPS may not work at all this weekend, at least correctly in all cases.
Testing will be conducted at any of these facilities:
https://www.navcen.uscg.gov/pdf/gps/gpsnotices/GPS_Interference.pdf
https://www.google.com/maps/place/32%C2%B000%2700.0%22N+118%C2%B027%2700.0%22W/@32.1768507,-118.7741019,8z/data=!4m5!3m4!1s0x0:0x0!8m2!3d32!4d-118.45
It will start on Saturday 04/15 all day and may effect most of California.
GPS 04/049 ZOA NAV (FACSFACSD GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND
ADS-B)
MAY NOT BE AVBL WI A 464NM RADIUS CENTERED AT 320000N1184500W (MZB 227090)
FL400-UNL
409NM RADIUS AT FL250
340NM RADIUS AT 10000FT
317NM RADIUS AT 4000FT AGL
249NM RADIUS AT 50FT AGL.
17/04/15 1630-17/04/15 - 1829
Current constellation status:
https://www.navcen.uscg.gov/?Do=constellationstatus
More on GPS:
http://www.gps.gov/systems/gps/space/
