TAG: Block IIR-M

U.S. Air Force puts more power into GPS Block IIR-M C/A-code

April 1, 2017By

By Peter Steigenberger, André Hauschild, Steffen Thoelert and Richard B. Langley Between Feb. 7, 05:02 UTC and Feb. 8, 12:30 UTC, 2017, all seven operational GPS Block IIR-M satellites were consecutively subject to short periods of unavailability. These official outage periods, when the satellite signals were set unhealthy and deemed unusable, were announced ahead of time through Notice Advisories to... read more