GNSS Module Series
LC29D_EVB(0)_User_Guide 33 / 42
Source
Mount point
AssistUart
0: close; 1: open, Standard COM Port can receive LC29D module
NMEA data.
DataStore
0: close; 1: open, SD card can receive LC29D module NMEA data.
⚫
If no error occurs, the returned message will be:
+QGNSSPARAM OK
⚫
If there is any error, the returned message will be:
+QGNSSPARAM ERR
7.2.
Description of RTK Status
The chapter mainly describes RTK status. The RTK status can be judged by the <Quality> parameter
value in GGA. The number
4 in the figure below represents fixed integers.
Figure 28: GGA Example Diagram
Table 8: <Quality> Parameter
Content
Description
<Quality>
GPS quality indicator:
0 = Fix not available or invalid