Sierra Wireless MP 700 Series, Command Reference Manual

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MP 700 Series GPS AT Command Reference
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!MPGPSNMEA=
[<RMC>],[<GGA>],
[<GLL>],[<VTG>],
[<GSV>],[<GSA>],
[<ZDA>]
!MPGPSNMEA?
Set NMEA messages
Sets which NMEA messages are generated by the GPS module when in NMEA
mode. (See
!MPGPSRESET
.)
Note: This command is only available on modems with firmware version 2.0 or
greater.
The NMEA protocol includes several different message types, of which these
are supported.
GGA
—Global positioning system fix data
GLL
—Global position / latitude and longitude
GSA
—GPS DOP (Dilution of Precision) and active satellites
GSV
—Satellites in view
RMC
—Recommended minimum specific GPS/transit data
VTG
—Track made good and ground speed
ZDA
—Time and date
To enable a message, set the parameter to “1”; to disable, set the parameter to
“0”. For example:
<GGA>=0
disables the Global positioning system fix data message
<GGA>=1
enables the Global positioning system fix data message
Messages are separated by <LF><CR>. By default, the
GGA
,
VTG
, and
ZDA
messages are generated, and these three messages must be enabled in order
for Watcher to display GPS information. See the NMEA web site,
www.nmea.org to obtain the standards documents that provide the message
formats.
!MPGPSNMEA? returns the setting, showing which messages are currently
enabled.
!MPGPSRESET=[<prot
ocol>] Reset GPS module
The MP 700 Series GPS has an embedded Trimble SQ GPS module.The
module supports TAIP/TSIP (Trimble ASCII Interface Protocol/Trimble Standard
Interface Protocol) and NMEA (National Marine Electronics Association).
!MPGPSRESET restarts the GPS module setting the protocol.
The <protocol> value determines the protocol in use following the reset:
•
<protocol>=0
TAIP (default)
•
<protocol>=1
NMEA
Table 3-9: Command Reference Table (ASCII Alphabetic)
Command Description