I am conducting a survey, using my Reach RS+. I’m using base + rover in RTK mode setup, with the base placed over an unknown point, and used average single to locate the approximate coordinates of that point. I left a temporary benchmark, so I could return and use the same point later. I did all my survey without any issue.
After one week, I went back to the same benchmark (the one with the approximate coordinates) and left the base for over 10 hours, so I could correct the coordinates of that point, using PPK. On that day, I didn’t do any survey; just left the base turned on, on that point.
So far, so good.
I went back to office, used RTKCONV to convert to Rinex, and used IBGE’s website to locate the exact position of that benchmark (https://www.ibge.gov.br/en/geosciences/geodetic-positioning/services-for-geodetic-positioning/20104-online-service-for-post-processing-gnss-data.html?=&t=processar-os-dados).
IBGE is the institute responsible for all topographic surveys in Brazil; if that’s not clear for some of you, please let me know - something may be lost in translation and english is not my first language.
We (brazilian surveyors) must use this tool for some of the topographic surveys that we do in our country.
So far, so good, again.
I did the exact same procedure with a Reach RS2, but this time, for only four hours, instead of 10 from RS+.
Comparing both results, RS+ point was almost 18 meters away from RS2. Is it because RS+ only have one frequency? Am I doing something wrong?
Here are all the parameters that I used, from RTKCONV and my base:
I’ve tried my luck on the Portuguese section, but without success.
Let me know of your thoughts.