Flawed GPS signal processing design cited as cause of receiver problems
from Inside GNSS
Widespread reports of intermittent GPS receiver outages may well end this week as the U.S. Air Force wraps up an "extended navigation mode" functional checkout of a GPS satellite, designated Space Vehicle Number 64, a Block IIF spacecraft launched in February. The problem affects only user equipment that erroneously uses navigation message data from the satellites, which had yet to be set "healthy."
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