FP_A-GNSSANT

Description:

This message contains information on the GNSS antenna supervision, such as the antennas’ state and power supply. Under normal conditions, the GNSS state should be OK, and the power should be ON.

Example message:

CODE

$FP,GNSSANT,1,2234,305129.200151,short,off,0,open,on,28*65\r\n

Message fields:

#	Field	Format	Unit	Example	Description
1	`msg_type`	String	-	`GNSSANT`	Message type, always `GNSSANT` for this message
2	`msg_version`	Numeric	-	`1`	Message version, always `1` for this version of the `GNSSANT` message
3	`gps_week`	Numeric	-	`2234`	GPS week number, range 0–9999 or null if time is not available
4	`gps_tow`	Float (.6)	s	`305129.200151`	GPS time of week, range 0.000–604799.999999 or null if time is not available
5	`gnss1_state`	String	-	`short`	GNSS1 antenna state, see below
6	`gnss1_power`	String	-	`off`	GNSS1 antenna power, see below
7	`gnss1_age`	Numeric	s	`0`	Time since `gnss1_state` or `gnss1_power` information last changed, 0–604800, or null
8	`gnss2_state`	String	-	`open`	GNSS2 antenna state, see below
9	`gnss2_power`	String	-	`on`	GNSS2 antenna power, see below
10	`gnss2_age`	Numeric	s	`28`	Time since `gnss2_state` or `gnss2_power` information last changed, 0–604800, or null

Values for gnss1_state and gnss2_state:

Value	Description
null	State not available, for example during initialisation of the receiver
`ok`	Antenna detected and good
`open`	No antenna detected (e.g. no antenna connected, or connected via DC-blocking, such as a power-splitter)
`short`	Antenna short circuit detected

Values for gnss1_power and gnss2_power:

Value	Description
null	Power status not available, for example during initialisation of the receiver
`on`	Antenna power supply is on
`off`	Antenna power supply is off