Complete List of NMEA talker IDs of GPS/GNSS system from https://www.nmea.org.
|$XX||NAVIGATION SATELLITE SYSTEM RECEIVERS||REGION/COUNTRY|
|GA||Galileo Positioning System||Europe|
|GB||BDS (BeiDou System)||China|
|GN||Global Navigation Satellite Systen (GNSS)||※|
|GP||Global Positioning System (GPS)||US|
※ Note: The “GN” Talker Identifier shall be used when the data in the sentence is produced from a combination of multiple satellite systems. Individual satellite system Talker Identifiers are only used when the data in the sentence is produced from a (single system).
Region/Country information is from https://www.qzss.go.jp.