ublox c94 m8p rover or base should be used in ublox_gps node?

asked 2019-06-20 09:12:08 -0500

akosodry gravatar image


(two noob questions)

1: I was able to set up successfully the ublox rover and base stations using the official u-center windows application based on the quick setup guide.

Now i want to use ublox_gps node to have the relevant gps topics in ROS environment. Since the node provides configuration files for both the rover (c94_m8p_rover.yaml) and base (c94_m8p_base.yaml),

im confused which one should be launched? I assume both shall be connected via USB (otherwise no RTK ofc), but which config yaml file should be launched in ROS?

2: Does the accuracy of the survey-in coordinate determination (done on the base station) influences the coordinate determination accuracy of the rover station relative from the base station? I assume yes and of course its evident, but better to ask a pro :)

Thank you for the help. Regards.

PS:I did so far the following setup in u-center:

Base successfully finished the survery-in + UBX-CFG-PRT: Target 1-UART1, In none, Out 5-RTCM3, Baud 19200 + USBX-CFG-MSG: 1005, 1077, 1087, 1230 messages are assigned to UART1

Rover only needs to receive RTCM messages, therefore UBX-CFG-PRT: Target 1-UART1, In 5-RTCM3, Out none, Baud 19200

edit retag flag offensive close merge delete


hi @akosodry, have you found answer to your question ? I have similar question since i dont have experience in ROS beside the tutorials. Do you have link or tutorial how to use the ublox package from https://github.com/KumarRobotics/ublox

luthfan gravatar image luthfan  ( 2019-11-15 03:39:00 -0500 )edit

I have the query, I'm really confused.

MH_Ahmed gravatar image MH_Ahmed  ( 2020-01-07 04:07:15 -0500 )edit