GPS INTERFERENCE TESTING


Released 10 February, 2017

FEDERAL AVIATION ADMINISTRATION

FLIGHT ADVISORY GPS INTERFERENCE TESTING

ELECTRONIC PROVING GROUND (EPG) 17-01

14 -23 February, 2017

Sierra Vista, AZ

GPS testing is scheduled as follows and may result in unreliable or unavailable GPS signal:

A.

Location: Centered at 314817N 1091130W or the SSO VOR 162 degree radial at 28NM.

B.

Dates and times:

14–18 FEB 17 0530Z–1030Z

21–23 FEB 17 0630Z–1030Z

C.

Duration:

Each event may last the entire requested period.

D.

NOTAM INFO: NAV (EPG GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 496NM RADIUS CENTERED AT 314817N 1091130W (SSO 162028) FL400 - UNL DECREASING IN AREA WITH A DECREASE IN ALT

DEFINED AS:

450NM RADIUS AT FL250

381NM RADIUS AT 10000FT

362NM RADIUS AT 4000FT AGL

343NM RADIUS AT 50FT AGL

E.

Pilots are encouraged to report anomalies only when ATC assistance is required.

The time periods discussed in this advisory may be reduced or cancelled with little or no

notice. Pilots are advised to check NOTAMs frequently for possible changes prior to

operations in the area. NOTAMs will be published at least 24 hours in advance of any GPS

tests.

https://www.faasafety.gov/files/notices/2017/Feb/EPG_17-01_GPS_Flight_Advisory.pdf


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