Originally Posted by
Sallyann1234
Of course, they would have to be replaced. All that could be salvaged are the orbital slots and the frequency allocations - which were not obtained for GNSS use and would need regulatory approval.
Then there is the minor issue that the new system is unlikely to be compatible with existing receivers.
Given the fiasco of the UK going it alone on the Covid-19 tracing app, I fully expect this daft idea, forced upon the UK by daft decision, will be late, and dysfunctional.