Q&A forumCategory: Questionsexample-configuration
GeeJee asked 3 weeks ago

It would be nice to have some example configuration files for the ublox f9 module. It will help me and others to speedup playing with the modules. Maybe ArduSimple can publish there default config files for rover and base.

1 Answers
Best Answer
Ardusimple Staff answered 3 weeks ago

Hi Geejee,

You can find attached configuration files used for our kits as of today. We would like to highlight that they have been tested only on u-blox firmware HPG 1.00. We have heard that somewhen u-blox might remove support for UBX-CFG-MSG messages and will force to move to UBX-CFG-VALSET.
Here a brief summary of the content:


  • Default configuration
  • Changed UART2 baudrate to 115kbps (this improves the buffer use of the radio links)


  • Default configuration
  • Enabled survey-in with target accuracy 2.5m (should take no more than 5-10min)
  • Changed UART2 baudrate to 115kbps (this improves the buffer use of the radio links)
  • Activated following RTCM messages
    • 1005: Stationary RTK reference station ARP
    • 1074: GPS MSM4
    • 1084: GLONASS MSM4
    • 1094: GALILEO MSM4
    • 1230: GLONASS code-phase

We have selected this combination of messages because it’s a good tradeoff between performance and required data link:

  • Performance can be improved by using MSM7 messages
  • RF Bandwidth can be improved by eliminated some constellations (e.g. remove Galileo), or increase 1005 to only be sent once every 5 seconds.

Download rover configuration file

Download base configuration file

bobroberts replied 3 weeks ago

Hi Ardusimple,
Did you guys configure the boards you sent with those config files, or do we need to do the configuration ourselves?
I watched a walkthrough (https://www.youtube.com/watch?v=n8PUyOtiGKo) of the M8N board being configured, it looked like you had to send the “survey in” command to the base module for it to know its location. I imagine this is something we’ll need to do on these boards, correct?
One last question, at least according to the C099-F9P application board documentation page 11 (https://www.u-blox.com/sites/default/files/C099-F9P-AppBoard-ODIN-W2-CSW_UserGuide_%28UBX-18055649%29.pdf), the LEDs are stated to indicate the following:
1. No light = no connection to the base
2. Blinking light = RTK float
3. Solid light = RTK fix
But on your hookup guide (https://www.ardusimple.com/simplertk2b-hookup-guide/) it said the opposite, which I thought was odd. I just want to confirm that’s what the LEDs mean on the Ardusimple board.

Ardusimple Staff replied 3 weeks ago

Hi Drew,

Only our MR and LR kits come pre-configured. The single boards come with the default ZED-F9P configuration, thus you will have to make your own configuration or used the ones attached in this thread.

Regarding the LEDs polarity, we are aware it would generate doubts, but after a lof of discussion we decided to follow the ZED-F9P polarity and default configuration for both RTK FIX & GPS FIX (timepulse) LEDs.
As a summary:
ZED-F9P & simpleRTK2B: RTK status 0 – Fixed, blinking – receiving RTCM data, 1 – no corrections
C099: No light = no connection to the base, Blinking light = RTK float, Solid light = RTK fix

If you guys prefer that we change it for the future, please vote in this thread 🙂

bobroberts replied 3 weeks ago

I’d leave it, you guys have it documented correctly on your website and now we have this post verifying that they appear “backward”.

devere replied 7 days ago

Votes for more than one led color?