The military will again be conducting GPS testing out of Restricted Area 2205, east of Eielson Air Force Base, November 12-17, 2017.  This activity will be conducted at night, between the hours of 06Z and 16Z (Starting on November 11th, 9 pm Alaska Daylight Time, running till 7 am daily for five days).  A look at the chart accompanying this notice, issued by the FAA Joint Frequency Management Office Alaska, shows that effects could be widespread.

Map of potentially impacted area from upcoming GPS Testing.

If you experience any GPS anomalies, in addition to notifying ATC, please share that information with AOPA by sending an email to: [email protected].  Details including aircraft type, location, altitude, and the nature of the anomaly would help us track this issue.

While these hours of operation represent the maximum extent that “testing” may be conducted, we expect actual activities may be of shorter duration.  ATC will be notified by the military before testing on a given day is started, and when it has been concluded, so a call to Anchorage Center may provide a better idea of what to expect during these days.  As always, please check NOTAMS for any changes regarding this activity.

At the Alaska Civil Military Aviation Council meeting earlier this week, we were advised that each of the Red Flag Exercises being planned for the coming year will include GPS Interference activities.  AOPA will continue to monitor this activity and its impacts on civil aviation, as we continue to advance into the era of satellite based navigation.

Link to the notice:  JFAK 17-03 GPS Flight Advisory