Data Sheet

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3.2 Antenna Status Protocol (Antenna Advisor)
The function is for external active antenna only.
PGTOP—Status of antenna
Table-12 contains the values for the following example:
$PGTOP,11,3 *6F
Table-12: PGACK Data Format
Name Example Units Description
Message ID $PGTOP Protocol header
Command ID
1
1
Function Type
Reference
3
Value of antenna status
Example:
$PGTOP,11,value*checksum
Value: 1=>Active Antenna Shorted
2=>Using Internal Antenna
3=>Using Active Antenna
3.3 MTK NMEA Command Protocols
Packet Type:
103 PMTK_CMD_COLD_START
Packet Meaning:
Cold Start：Don’t use Time, Position, Almanacs and Ephemeris data at re-start.
Example:
$PMTK103*30<CR><LF>