If applicable, the GPS receiver reports the base station identifier. This is dependant on the brand of base station, not all base stations report an ID.
Displays the elapsed time between CS (correction signal) updates from the base station. As reported by the GPS receiver. If timed out, will display "No Base!" as shown.
PDOP as reported by GPS Receiver. Note: This is the value the user specified AS PDOP, in the Protocol.def file. It is the value the user specifies as a critical parameter to determine signal quality.