CAP Talk

Operations => Aviation & Flying Activities => Topic started by: disamuel on January 21, 2011, 05:14:18 AM

Title: GPS Disruptions in the southeast?
Post by: disamuel on January 21, 2011, 05:14:18 AM
http://www.engadget.com/2011/01/20/faa-warns-of-ongoing-gps-issues-in-southeastern-us-due-to-defens/ (http://www.engadget.com/2011/01/20/faa-warns-of-ongoing-gps-issues-in-southeastern-us-due-to-defens/)
Title: Re: GPS Disruptions in the southeast?
Post by: CASH172 on January 21, 2011, 05:21:33 AM
Not again.  Does this occur anywhere else normally?
Title: Re: GPS Disruptions in the southeast?
Post by: SarDragon on January 21, 2011, 05:28:36 AM
It happens whenever/wherever the gummint decides to test stuff that will interfere with the GPS signals.
Title: Re: GPS Disruptions in the southeast?
Post by: bosshawk on January 21, 2011, 07:35:42 AM
If I recall correctly, I received a notice recently that GPS signals within a 120 mile radius of Porterville, Ca would be disrupted periodically: I seem to recall this month.  Since I am not planning any extensive cross-country flying right now, I hit the delete button.

Yes, there are periodic tests affecting GPS, but the FAA lets us know when and where.
Title: Re: GPS Disruptions in the southeast?
Post by: SarDragon on January 21, 2011, 07:45:51 AM
More info here:
http://www.navcen.uscg.gov/pdf/gps/gpsnotices/GPS_Interference.pdf (http://www.navcen.uscg.gov/pdf/gps/gpsnotices/GPS_Interference.pdf)
Title: Re: GPS Disruptions in the southeast?
Post by: lordmonar on January 21, 2011, 08:17:07 AM
Quote from: CASH172 on January 21, 2011, 05:21:33 AM
Not again.  Does this occur anywhere else normally?

Happens out west all the time.
Title: Re: GPS Disruptions in the southeast?
Post by: AirDX on January 21, 2011, 09:35:42 AM
RTFN:

01/007 (A0032/11) - NAV GPS IS UNRELIABLE AND MAY BE UNAVAILABLE WITHIN A
CIRCLE RADIUS OF 370 NM AND CENTERED AT 304906N/0802811W OR LOCATION
ALSO KNOWN AS 105.25 DEGREE RADIAL 52.1 NM FROM THE SSI VOR AT FL400;
DECREASING IN AREA WITH A DECREASE IN ALTITUDE TO A CIRCLE WITH A
RADIUS OF 325 NM AT FL250; A CIRCLE WITH A RADIUS OF 260 NM AT 10,000
FEET MSL AND A CIRCLE WITH A RADIUS OF 215 NM AT 4000 FT AGL
0000-0245 DLY. 20 JAN 00:00 2011 UNTIL 11 FEB 02:45 2011. CREATED: 14 JAN 14:51
2011

Note: SSI is BRUNSWICK, GA

Meanwhile, out west:

01/014 - NAV GPS IS UNRELIABLE AND MAY BE UNAVAILABLE WITHIN A
CIRCLE WITH A RADIUS OF 345 NM AND CENTERED AT N355652/W1173458 OR
LOCATION ALSO KNOWN AS 88 DEGREES AND 70 NM FROM THE TTE VOR AT
FL400; DECREASING IN AREA WITH A DECREASE IN ALTITUDE TO A CIRCLE
WITH A RADIUS OF 305 NM AT FL250; A CIRCLE WITH A RADIUS OF 230 NM AT
10,000FT MSL AND A CIRCLE WITH A RADIUS OF 185 NM AT 4,000FT AGL
1500-1530 AND 1630-1900 DLY. 19 JAN 15:00 2011 UNTIL 23 JAN 19:00 2011. CREATED:
14 JAN 23:24 2011

TTE is Tule VOR, Porterville, CA.

If you zoom google Earth in on those positions... there's usually something interesting there.
Title: Re: GPS Disruptions in the southeast?
Post by: AirDX on January 21, 2011, 09:55:05 AM
...except the one off Brunswick, it's out in the open ocean.
Title: Re: GPS Disruptions in the southeast?
Post by: Spaceman3750 on January 21, 2011, 01:49:15 PM
Quote from: disamuel on January 21, 2011, 05:14:18 AM
http://www.engadget.com/2011/01/20/faa-warns-of-ongoing-gps-issues-in-southeastern-us-due-to-defens/ (http://www.engadget.com/2011/01/20/faa-warns-of-ongoing-gps-issues-in-southeastern-us-due-to-defens/)

You aped my topic >:D. Not that I really care :P.
Title: Re: GPS Disruptions in the southeast?
Post by: davidsinn on January 21, 2011, 03:45:30 PM
Looks like the Navy is up to something. Jacksonville is an NAS and China Lake NAS is near the western one...
Title: Re: GPS Disruptions in the southeast?
Post by: BillB on January 21, 2011, 05:23:34 PM
So is Kings Bay sub base