Quick start user guide - RTK setup using Fieldgenius

Quick start user guide - RTK setup using Fieldgenius

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1. Configure base and rover settings

Double click on the Fieldgenius app located at the desktop of your data collector. In our case, we are using a Mesa 2. In the ‘ Project Manager’, select an existing project and click ‘ Open’ or hit ‘ New Project’ to create a new project.





Once you click on ‘ New Project’, enter a name for your new Project. You can click ‘ OK’ to accept the settings and continue. If you need to change any of the settings, click on the ‘ Project Settings’ button.
Click on ‘ Project Manager’, add a new ‘ New Project’ and type the name of your preference for that project. In our case the name is ‘ Setup’.





Click on ‘ Project settings’ for selecting distance and angle units, coordinate system and entering information about the specific project. Click on ‘ Units and Scale’ to check the default settings.






Click on ‘ Units and Scale’. Then, select and hit ‘OK ’.






Click on ‘Coordinate system’ settings. Select the correct UTM zone based on the area you will survey and hit ‘OK’.






Click on ‘Project Files’, where the .raw file and the feature file are located. Then, hit ‘Continue’.





Click on ‘Project information’ and enter information about the specific project. Then, hit ‘OK’.





You will be prompted to connect to an instrument. Hit ‘Select Instrument’.





Click on ‘GNSS Reference’ to connect to the base of your RTK system. Then, click on ‘Add’ in order to add your base receiver as a permanent option in the Fieldgenius software. Enter the desired name and then hit ‘OK’. In the following window the GNSS Reference has the generic name ‘Reference Sample’.





Click ‘Edit’ in order to define the model details of your receiver.





Select the ‘Make’ and the ‘Model’ of your GNSS base receiver based on the dropdown menus. Select Bluetooth as your connection ‘Port’. Hit on ‘Bluetooth Device List’ to find your base receiver recognized based on its serial number (SN). The SN of your GNSS receiver can be found at the bottom of your receiver.



Click on ‘Search’ to search for your GNSS receiver.

Select your receiver from the list or ‘Refresh List’ if your device does not appear.
Hit ‘OK’ as there is no need for a PIN number. Then, the ‘Device’ will take the name of your base receiver.

Hit ‘Connect’ to establish connection with your base receiver. The bluetooth LED on the interface of your receiver will turn on, showing that connection has been established.
Once you are connected to your base receiver through Bluetooth, you will be returned to the map view.





To start your base, in case you are setting up the base on an unknown point, you will have to select the ‘Averaged geodetic position’ method, as shown on the image above, in order to calculate the position from the available satellites. Alternatively, you can select the known geodetic position or local transformation to point options if you are setting up your base on a known point.






In our case, we select ‘ Averaged Geodetic Position’ and then hit ‘Start Reference’. The base position is estimated after averaging various position epochs. You can wait for 15-20 position epochs and then hit ‘Set position’.


 




A new window will ask you if you want to save the base’s position. By hitting ‘Yes’ you save the point and you can add information about it, such as ‘ Description’ and/or ‘Enter note’.





You can select the point ‘Description’ through the default ‘List’ or by double-clicking on the ‘Description’ space and type a new name. By clicking on ‘Enter Note’, you can write down a note or you can take a picture of the point you just saved.

If you type a name that it is not included in the library list, such as ‘ BASE’, it can be saved as a new point description under the project automap file of the particular project you are working on. Then, hit ‘Store Pnt’ and ‘Yes’ as in the two following images.






A new window pops up that prompts the user to define the parameters of the antenna height of your first point (point 1), which refers to your base station. The antenna ‘Model’ is already recognized and the user only has to:
- enter the antenna height (in meters) under the ‘Measured Height’, and
- select the point from which this height was measured under the ‘Measure Point’ dropdown list. Then, hit ‘OK’.

Now, we are connected to our base and we have to setup the parameters for the link configuration, that is how the base sends corrections to the rover. The ‘Link Configure’ window pops up.

Note that if you are using an external radio, the device type should be ' other device' and the device port ' serial' as shown below. The baud rate must match the baud rate that external radio was programmed to.








If you use internal radio (UHF antennas should be mounted in both base and rover receivers),
you should select:
- Device type: Digital UHF
- Device port: Internal Device
- Message Type: RTCM 3 





Click on ‘Press to Setup’ to define the link settings. Loading will take a couple of seconds.




In the new Digital UHF window, you will have to select the UHF parameters, the channel frequency, channel spacing, protocol, modulation, link rate and FEC, then hit ‘OK’.



Note that you can select a different radio frequency/channel than the one indicated above. Also, you may not have the same frequency assigned under channel 1, as shown above.
However, make sure you select the same parameters in both base and the rover UHF configuration windows.





Then, hit ‘OK’ again. You have successfully connected to your base once you return to the map view. 




In order to set-up our rover settings, click on the Fieldgenius icon. Now, we have to first hit ‘ Disconnect’, to disconnect from the base.




Then, hit ‘ Connect’, in order to establish connection with your rover receiver and setup all the necessary parameters.







Click on ‘ GNSS Rover’ to connect to the rover of your GNSS system. Click on ‘ Add’ in order to permanently add your rover receiver in the dropdown list of your Fieldgenius software. Enter the desired name referring to your rover receiver, hit ‘ OK’ and then ‘ Edit’.

Select the ‘ Make’ and the ‘ Model’ of your GNSS rover receiver based on the dropdown lists. Select Bluetooth as your connection ‘Port’. Hit on ‘ Bluetooth Device List’ to find your rover receiver, recognized based on its serial number (SN).
Select your receiver from the list or ‘ Refresh List’ if your device does not appear.

No PIN is required for the Bluetooth connection, so just hit ‘ OK'.

If the information is correct, click ‘ Connect’.
Now, the communication parameters of the GNSS rover are defined. The Link Configure window pops up. You have to make the following selections:

- Device type: Digital UHF
- Device port: Internal Device
- Message Type: RTCM 3

Click on ‘ Press to Setup’. Wait for couple of seconds until you are directed to the Digital UHF settings window, as shown below.




Here, you are to select the channel frequency, channel spacing, protocol, modulation, link rate and FEC, to match with your base receiver.
Then click ' OK' to complete the setup.

You have established successful connection between your base and rover and cm-level precision for your positioning once you get ‘ RTK fixed’. In order to confirm that, look at the icon on the bottom right side on the map view.

2. Download Fieldgenius project files

Your Fieldgenius files are located in the following folder.
C:\Users\Owner\Documents\MicroSurvey\FieldGenius\FG Projects




For your current project ‘Setup’, includes the following files.


3. Stonex - GNSS raw data download options

In order to download the raw data logging in the base, you can connect to the WebUI interface of the Stonex S10 GNSS receiver.
- Turn on the Wifi network in your PC
- Search your receiver by the serial number of the instrument (located on the bottom of the receiver) and connect.
- Once connected to the Wifi, open any web browser and enter the IP Address: http://192.168.10.1/
- Enter user and password credentials. The Stonex default settings are:
User: admin
Password: password.
- After inserting the above credentials, you will be directed to the main page of your receiver’s settings.

- Go to ‘Download’, you will see all the files stored inside the memory of the antenna and you can select and download the desired file.
Note that when using a S900 base receiver you can either download directly the .dat file or edit and convert it to Rinex format through the WebUI, as you can see below.

- By clicking Edit, you can change and correct the Antenna Measurement and the Antenna Height before downloading the static data, in case wrong selection and value were set correspondingly.




- By selecting Convert, you can convert your .dat file to a variety of file formats, including Rinex, Leica format, and Stonex format. In order to post-process your static file using the NRCan-PPP service, convert to the latest Rinex version 3.02 and check the download box in order to download the .zip file directly.

                                                                                       





Check the Download box and hit Convert.




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