As RTKBase is mainly designed for permanent base station, I usually post process a 12 or 24H data file with an online PPP tools or with RTKlib, to get a really accurate position.
But, when you are on the status web page, the realtime location is calculated with RTKLib in static PPP mode, so after a few hours, the coordinates should be pretty accurate.
(When you leave the status web page, RTKLIB keep computing the localization for 15mn)
My base station used survey-in, but with my new shop nearing completion, I want to move my base station to its roof, and I was thinking about collecting data for post processing. Can you do that with U-Center? I know that Canada has a web site I can upload some files to for post processing to get an accurate position. I assume I can just hit record in U-center and record many hours of data, and then convert it using a tool from rtklib to rinex. I’ll have to give it a try and compare the results with survey-in.
I’d like to have GPS numbers that line up closely with my cousin’s machines, which are using Trimble Centerpoint RTX. I’m not sure right now how my coordinates match up for accuracy. I know I’m about 3 metres off of what Google Earth thinks.
Hi @Stefal,
Thank you for sharing the RTKBase project here. I’ve been using it for a few weeks and I can testify now that it is really reliable to work in the field. It can be used with any NTRIP caster (I use centipede.fr) or directly via TCP (opening a port on the box is necessary though).
My setup is the following :
Antenna ANN-MB-00 mounted on a square 20x20 cm ground plane (ardusimple)
U-Blox Zed-F9P on SimpleRTK2B board (ardusimple)
Raspberry pi 3B+ (8 GB micro SD card)
Ethernet wired connexion to internet (no wifi)
After some research, the alternatives I found are :
using a Raspberry Pi and str2str (equivalent of strsvr but in command line), with a failsafe measure to restart the process automatically in case of powerdown or bug (RTKBase: a GUI for your own Gnss Base Station)
All things considered, RTKBase is in my opinion the simplest solution to deploy a base station. It is also fairly inexpensive and beginner friendly.
Would it work with PoE ? I have placed the antenna on a rooftop that is far away from any power source and even WIFI. I allready have a PoE switch but i dont know anything about Raspberry Pi! How many Gb does it need to be ?
Hi @kris
Yes, this solution should work. I used a separate 5V DC power supply with longer wires, but a POE hat should work. Make sure that you have a Raspberry Pi 3B+ or a Pi 4 to use your hat. Any amount of RAM will work (1 GB (Pi 3), or 2, 4 or 8 GB (Pi 4)). Make sure the micro SD card is at least 8 GB though.
About the Ethernet cable, it would be recommended to choose a CAT6 rated, as it is less resistive for POE over large distances (no more than 100m though). Try it before mounting the cable in your building, it would be unfortuante to end up with a neat but not functional installation !
Yes, POE is a good solution. If you already have a POE Switch, you can the official raspberry POE Hat, or a POE (at least 802.3af) extractor, I use a Trendnet TPE-104GS.
BTW: If you ethernet cable is partly outdoor, use a … outdoor ethernet cable.
Hi all, I am setting up a base station with a raspi 4. I have downloaded and etched the software onto an SD card. After I start up the raspi and everything is installed I am asked for basegnss login in and password. Could anyone tell me what that would be.
i have set up the rtk base, i can enter to web page created by raspberry pi but i don’t see any message from f9p. I am using a survey config from Franz Husch
I’ve been testenig it for a weeks and it works fine.
My setup is the following :
Antenna Trimble Zephyr 2 Geodetic on a tripod.
ZED-F9P RTK GNSS receiver board with SMA from https://www.gnss.store/
Raspberry pi 3B+ (16 GB SD card)
Ethernet cable connection.
I have a question, is there an option to add a serial port (RS232)
as an output for use with a UHF radio as a link to the rovers?
