10
LA010812A © 2007 Navman Wireless. All rights reserved. Proprietary information and specifications subject to change without notice.
Note:
There is reduced resolution on the DOP field indicators:
,1.8,1.0,1.5*33
J31 output:
$GPGSA,A,3,05,30,12,09,14,,,,,,,,5.1,2.5,4.4*38
6.2.7 GGA message
J31
J21
GGA
$GPGGA,161229,
487
,3723.2475,N,12158.
3416,W,1,07,1.0,9.0,M,1.0,M,
0.0,0000
*18
$GPGGA,161229,3723.2475,N,12158.3416
,W,1,07,1.0
0
,9.0,M,1.0,M,,*18
Table 6-8: GGA message comparison
Note:
There is additional resolution in the Time field:
,161229,
487
,
There is a reduction of resolution in the DOP field:
,1.0,
This was previously:
,1.0
0
,
There are additional data fields:
,
0.0,0.000
*18
These are per the NMEA standard and are for the Differential station ID and Correction fields.
J31 output:
.
$GPGGA,133138.000,5133.2768,N,00150.4530,W,1,05,2.5,102.7,M,48.1,M,,0000*47
6.3 NMEA Input Messages
NMEA (National Marine Electronics Association) communications protocol is used for most
navigation.devices.as.the.common.standard.interface.protocol.to.transmit.data...The.messages.
below adhere to NMEA 0183 v.2.2 protocol. Please refer to SiRF NMEA Protocol Reference
Manual for a detailed description.
Below is a list of supported NMEA input messages:
Message ID
J21 (GSW2)
J31 (GSW3)
100
Yes
Yes
101
Yes
Yes
102
Yes
Yes
103
Yes
Yes
104
Yes
Yes
105
Yes
Yes
106
Yes
Yes
107
No
Yes
Table 6-9: NMEA input message comparison
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