twisted.positioning.nmea.GPGGAFixQualities

class documentation

class GPGGAFixQualities(Values): (source)

The possible fix quality indications for GPGGA sentences.

Constant	`DEAD_RECKONING`	There is currently no more fix, but this data was computed using a previous fix and some information about motion (either from that fix or from other sources) using simple dead reckoning. Not particularly reliable, but better-than-nonsense data.
Constant	`DGPS_FIX`	There is a fix, acquired using differential GPS (DGPS).
Constant	`FLOAT_RTK_FIX`	There is a fix, acquired using floating real-time kinematics. The same comments apply as for a fixed real-time kinematics fix, except that there were insufficient shared satellites to acquire it, so instead you got a slightly less good floating fix. Typical resolution in the decimeter range.
Constant	`GPS_FIX`	There is a fix, acquired using GPS.
Constant	`INVALID_FIX`	The fix is invalid.
Constant	`MANUAL`	There is no real fix from this device, but the location has been manually entered, presumably with data obtained from some other positioning method.
Constant	`PPS_FIX`	There is a fix, acquired using the precise positioning service (PPS).
Constant	`RTK_FIX`	There is a fix, acquired using fixed real-time kinematics. This means that there was a sufficient number of shared satellites with the base station, usually yielding a resolution in the centimeter range. This was added in NMEA 0183 version 3.0. This is also called Carrier-Phase Enhancement or CPGPS, particularly when used in combination with GPS.
Constant	`SIMULATED`	There is no real fix, but instead it is being simulated.

DEAD_RECKONING: str = (source)

There is currently no more fix, but this data was computed using a previous fix and some information about motion (either from that fix or from other sources) using simple dead reckoning. Not particularly reliable, but better-than-nonsense data.

Value

'6'

DGPS_FIX: str = (source)

There is a fix, acquired using differential GPS (DGPS).

Value

'2'

FLOAT_RTK_FIX: str = (source)

There is a fix, acquired using floating real-time kinematics. The same comments apply as for a fixed real-time kinematics fix, except that there were insufficient shared satellites to acquire it, so instead you got a slightly less good floating fix. Typical resolution in the decimeter range.

Value

'5'

GPS_FIX: str = (source)

There is a fix, acquired using GPS.

Value

'1'

INVALID_FIX: str = (source)

The fix is invalid.

Value

'0'

MANUAL: str = (source)

There is no real fix from this device, but the location has been manually entered, presumably with data obtained from some other positioning method.

Value

'7'

PPS_FIX: str = (source)

There is a fix, acquired using the precise positioning service (PPS).

Value

'3'

RTK_FIX: str = (source)

There is a fix, acquired using fixed real-time kinematics. This means that there was a sufficient number of shared satellites with the base station, usually yielding a resolution in the centimeter range. This was added in NMEA 0183 version 3.0. This is also called Carrier-Phase Enhancement or CPGPS, particularly when used in combination with GPS.

Value

'4'

SIMULATED: str = (source)

There is no real fix, but instead it is being simulated.

Value

'8'