Base at unknown point - workflow question

Reach RS2 / RS2+ RTK / PPK configuration
1

Hi all.

I would like to use RTK for an upcoming survey, where there is potential for the need to repeat the survey. The site has some cellular network coverage at a likely base position but not at the survey (rover) points. There is no local benchmark available.

Is there any benefit / accuracy improvement in collecting a single point over NTRIP with a unit set up as a “rover” to establish the base position, before using this as the “known point” for the base in an RTK survey as normal vs using NTRIP to average the base position over a period of time (1/2 hour?) and passing this directly over via LORA to the rover?

Thanks in advance.

1 Like
3

Hi @LW2025,

Both approaches should work well. It just comes down to what’s more convenient to you.

  1. Collect your point of interest with a FIX solution using an NTRIP, then manually enter that coordinate as the known base position.

  2. Connect the base to NTRIP, wait for it to get a FIX, and average its position. A few minutes is usually enough. Make sure to save that coordinate so you can reuse it later.

In both cases, when you return to the site, placing the base in the same spot and entering the saved coordinates will help keep your results consistent.

If the Internet connection is unstable, you can also record a static log and submit it later to a PPP service like OPUS or NRCan. This support tip on placing the base might be helpful.

4 Likes