Hello, in a very large field, about 200 rural hectares (500 acres) with some hills. I have staked out many points using an RTK Rover (RS+) where on occasions I have needed to move the base antenna (RS2) to different places since, as it is a very large place, the LoRa signal does not arrives to do FIX or because I had to continue working the next day.
I have realized that once I moved the base antenna, to validate that the previous work is correct, I have searched again for the point that I had already staked out previously but now it does not fall exactly in the same place as before, it tells me that it is at about 40 or 60 centimeters difference. So now I get confused because I don’t know which one is correct or why it doesn’t fall in the same place.
Surely I am doing something wrong and my lack of knowledge and experience or I am forgetting to do something before starting the day.
This is my Workflow step by step:
I place the tripod in any part of the field where I can dominate as much as possible with the LoRa signal and get open sky.
I perfect the level the antenna with tribrach
I turn on the base antenna (RS2) and let it accumulate coordinates in “Average Simple” for 15 minutes (I attached a picture for further reference.)
Once “Average Simple” is finished at the base, I turn on the RS+ rover and wait for FIX to start staking out and if I return to a previously point, it is where it gives me another place to stakeout with a difference of approximately 40 to 60 centimeters.
Maybe I should always need to put the base in already known points and type the coordinates manually or should I need to make the process for “shift” to a particular place?
If so, I don’t know how to create a known point or what or where point I should shift to.
To create a Known Point:
According to what I have studied, to create a known point I must do PPK. Cross the RINEX data with the data obtained from some CORS network antenna using Emlid Estudio and use the NASA ephemeris data. And with this I can manually put the coordinate in the base.
To do a shift process I must have some known point within the same project and before doing stakeout I must go to that? I’m confused.
Could you help me to know what the workflow would be or what do I need to do?
I will really appreciate your help.
Thank you very much.