The right board for the job

GPS/GNSS Development Boards
1

Hello everyone, we are looking to make our own gnss receivers and found this website that contains boards for pretty much every application.

I am looking at monitoring small ground movement (mm to cm scale movement every month) so I was wondering if others here have built anything systems like this and can tell me what chips and peripherals they recommend.

Basically I would like to know which chips are the most accurate to deploy on the site and what other pieces (aside from a case and power supply) would I need to make this product.

Thank you

2

This is a big topic… That’s why we wrote tutorials!

https://learn.sparkfun.com/tutorials/wh … ps-rtk/all

https://learn.sparkfun.com/tutorials/ho … tation/all

I’d recommend a local base station with a rover staked into whatever spot you’re monitoring. You may want to capture RAWX and then do post processing. Trying to measure mm movement will be tricky but I know there are lots of SparkFun customers doing just that on glaciers and other scientific applications. Other folks on the forum may have additional thoughts.

3

Thank you Sparky. We got the units we needed and are charging the units using solar panels, Li batteries, and a solar charge controller

4

BTW, Sparky, it would suggest you to improve the tutorial about base station installation. The antenna is not installed in a well open place. See [NRCAN recommendations.

If you’re using CSRS-PPP service for coordinates calculation and the station is in North America, I would suggest get results in NAD83 to avoid plate motion glitches between nearby stations.](https://natural-resources.canada.ca/sites/nrcan/files/earthsciences/pdf/BestPractices_GNSS_Reference_Station.pdf)

5

And for the initial question, do you want real time measurements or can you accept afterwards calculations?

You may have a look at this [glacier tracking.](https://wiki.eclipse.org/images/7/7d/Eid2023_friedt.pdf)