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The GPS signal format was was designed in the 1970s. Any change to the signal format must be backwards compatible with legacy receivers. There have been some e
by bmurray7jhu 8y ago
The GPS signal format was was designed in the 1970s. Any change to the signal format must be backwards compatible with legacy receivers.
There have been some efforts to modernize the GPS signal format. In 2014, select GPS satellites began broadcasting an additional message (CNAV) with a 13 bit week number, allowing a ~157 epoch.