ZLC controller described a loss of frequencies event when the military; coordinated to 'jam' GPS sig...

Narrative:

Military was jamming frequencies. In ZLC; sectors 34; 44; 47 were affected. About 30 to 40 aircraft were in these sectors at the time. ZLA and ZOA centers were also affected by event. We had no mission sheet on radio jamming; only GPS jamming. Military jammed our frequency causing loss of communications up to 10 minutes. This happened for about 1-2 hours. We refused to attempt miles in trail restrictions to sfo; an operational deviation in my experience. We had a mission sheet on GPS jamming; but not one for frequency jamming. In my opinion; this caused a significant delay in stopping jamming. Recommendation; mission sheets involving all types jamming including contact information must be available prior to mission start. Anything else degrades the safety of the NAS.

Original NASA ASRS Text

Title: ZLC Controller described a loss of frequencies event when the military; coordinated to 'jam' GPS signals only; were also jamming radio communications.

Narrative: Military was jamming frequencies. In ZLC; Sectors 34; 44; 47 were affected. About 30 to 40 aircraft were in these sectors at the time. ZLA and ZOA Centers were also affected by event. We had no mission sheet on radio jamming; only GPS jamming. Military jammed our frequency causing loss of communications up to 10 minutes. This happened for about 1-2 hours. We refused to attempt miles in trail restrictions to SFO; an operational deviation in my experience. We had a mission sheet on GPS jamming; but not one for frequency jamming. In my opinion; this caused a significant delay in stopping jamming. Recommendation; Mission sheets involving all types jamming including contact information must be available prior to mission start. Anything else degrades the safety of the NAS.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1088091
Time
Date	201305
Local Time Of Day	0001-0600
Place
Locale Reference	ZLC.ARTCC
State Reference	UT
Aircraft 1
Make Model Name	No Aircraft
Person 1
Function	Enroute
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types

ZLC controller described a loss of frequencies event when the military; coordinated to 'jam' GPS signals only; were also jamming radio communications.