SparkFun LG290P Quadband GNSS RTK Breakout: UART2 port for RTK correction values

GPS/GNSS
1

Hello,
I am about to receive my order of two LG290P breakout board and after going through the hookup guide-

Hardware Assembly - SparkFun LG290P Quadband GNSS RTK Breakout Hookup Guide

I am thinking of setting one board as base station and send correction data using UART2 port (use RFD868ux for serial data transmission) and receiving the correction data in UART2 of the other board.

My query is do I have to make any other changes to send correction data to achieve RTK using this serial connection or will it work the same as your GPS RTK2 board.

Thanks,
Shriraj

2

It’s similar. You’ll need to setup the base to be in base mode, which will automatically enable RTCM output. You’ll need to set the baud rate of UART2 to match the radios. But I believe that’s all you should need to do.

1 Like
3

Hello,
I finally received the lg290p modules. I am able to set the base station in survey in and fixed mode using QGNSS2… but the process is very complex as i have to enter PQMT commands line by line. Is there any different way (such as using any script) so that making changes can be easier. Also, how can I disable beidou constellation.

4

IMHO recommend to send the commands one at a time and do a savepar & reboot each time…the chip must digest the pqtm commands that are not native for Kisilicon KT5030A.
Try to disable beidou (bad idea) as here:
2.3.30. PQTMCFGCNST
&
2.3.37. PQTMCFGSAT
in

and

Regards

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