KNID CHINA LAKE NAWS (ARMITAGE FLD)
M0055/07 - MIJI THIS WILL EFFECT OPERATIONS INSIDE THE R-2508 AND POSSIBLY BEYOND. PER FAA ANALYSIS: GPS UNRELIABLE AND MAY BE UNAVAILABLE WITHIN A 343NM RADIUS OF 35-57N / 117-35W AT FL400. THIS AREA DECREASES WITH ALTITUDE TO A CIRCLE OF 307NM RADIUS AT FL250, 228NM RADIUS AT FL100, AND 187NM RADIUS AT 4,000FT AGL. THE IMPACT AREA ALSO EXTENDS INTO MEXICAN FIR 17 MAY 20:00 2007 UNTIL 17 MAY 23:00 2007
"MIJI," btw, is an acronym for "Meaconing, Interference, Jamming, and Intrusion." This seems to say that GPS will be unreliable in half the state of California below 4K', and considerably more at higher altitudes, for three hours in the middle of the day on 5/17.
Time to switch back to VOR's gents.
S!
Wolf