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DGPS recapitalisation works

The General Lighthouse Authorities (GLA) of the United Kingdom and Ireland have commenced preparations for replacement and upgrading of the Differential Global Positioning System (DGPS) equipment for their waters. This upgrading will allow differential corrections to be transmitted for future GNSS and additional signals
from existing GNSS. There will be no changes to the broadcast parameters (frequency, range and so forth). This was advised in a Notice to Mariners issued in mid-January.