On Jan 17, 5:39*pm, "Matt Herron Jr." wrote:
(per FAA Flight Advisory) You might want to factor this in to your
badge or record attempts as the GPS trace may be unusable or have
holes in it. *This would be especially true at higher elevations like
wave flights. *The effected area is huge, covering most of Nevada and
southern California. *For example the area covered is above 10k MSL at
Lake Tahoe. *Testing will continue through Jan 23rd. *Pilots are
encouraged to report GPS anomalies to appropriate ARTCC.

if anyone wants to borrow a barograph for the winter let me know