See FAA Advisory. Arizona, Colorado Texas and Utah will be effected in addition to NM. Our friends at the White Sands Test and Training range are doing GPS jamming, Test and Evaluation. Shaun
Today really was not that big of a deal. The copter seemed to know its position relatively well with both events going on. I tested PH and it seemed normal.
From my understanding of the testing, and this is from a few years back, they look for degradation/sppofing of the signal, not totally wiping it out. Reason for the NOTAM is that for aircraft navigation it may be degraded and effect a GPS approach into an airport. If the approach was being done in marginal weather conditions that would not be a good thing.