Topnet Live: Skybridge Pro base and rover with PPP via L band configuration for MAGNET Field

This article explains how to use MAGNET Field to configure a Topnet Live Skybridge Pro base and rover with PPP via L band.

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Topnet Live: Skybridge Pro base and rover with PPP via L band configuration for MAGNET Field

To configure MAGNET Field for use with Skybridge, follow the steps in this article.

From the Main menu, select and press Configure.

Select and press Survey.

Press Select from Library.

Press Add.

Enter the Name for the Configuration.

Select RTK for the Type. Press Next.

Select the Manufacturer of your base receiver. Press Next.

Select the type of connection for the base. Typically it is Bluetooth.

Select the Receiver Model.

Enter the Elevation Mask.

If you are using an external antenna, make sure that you select it. If not, make sure it matches the Receiver Model.

Enter the HI of the antenna.

Press Next.

Select the Model of your base radio. Press Next.

Configure the Base Radio parameters. Press Next.

Select the type of connection for the base. Typically it is Bluetooth.

Select the Receiver Model.

Enter the Elevation Mask.

If you are using an external antenna, make sure that you select it. If not, make sure it matches the Receiver Model.

Enter the HI of the antenna.

Press the blue M button.

Select and press Receiver Settings.

Check the Enable Skybridge box, and select Lband for the corrections.

Press the green check mark.

Press Next.

Select the Rover Radio location.

Select the Rover Radio type.

Press Next.

Configure the Rover Radio parameters to match the Base Radio parameters.

Press Next.

Configure the Tilt and eLevel settings.

Press Next.

Select Fixed, PPPF and PPPN as the Solution type for both Precise and Quick. This selection allows the use of the RTK Fixed solution when it is available. After the Precise Point Positioning (PPP) solution converges, if you lose connection to the network, the PPPF (PPP Full) and PPPN (PPP Normal) solutions become available and allow collection of data to continue. 

Press Next.

Select Fixed, PPPF and PPPN as the Solution for Auto Topo.

Press Next.

On the Advanced Settings screen, select Multipath reduction. (Screenshot omitted)

Press Next.

Configure the Miscellaneous screen to your preferences. (Screenshot omitted)

Press the green check mark twice. (Screenshot omitted)

Select and press Connect.

Select GNSS for the Device type.

Select Base.

Press Connect.

Select the base receiver from the list.

Press Select.

Enter the PIN if your receiver requires it. (Screenshot omitted)

Press Connect.

When you have connected to the receiver, the receiver icon will show up beside the Home button.

Select and press Setup.

Select and press Start Base.

Select the point that your base is set up over. If it is unknown, press the take shot button and determine the position of the base.

Enter the height of the base.

Press Start Base.

A message will display that the base station started successfully. Go to Rover Connections. (Screenshot omitted)

If you have used the receiver as a base in the past, you may not see the radio configuration screen show up. If you need to configure the radio, press the blue M button, and select Config Radio before you move to connecting the rover.

Make sure you have Rover selected.

Press Connect.

Select the Rover Receiver from the list.

Press Select.

Enter the PIN if your rover receiver requires it.

Press Connect.

Select and press Survey.

Select and press Topo.

Select the Channel for the rover radio. Make sure it is the same that the base is using.

Press Start Radio.

A message will display: Modem setup successful.

Press Close.

A message stating Base station data was updated from corrections will display.

Press Close.

You should see the RTK fixed solution and are ready to collect topo with RTK.

Press the blue M button, and select Status.

Press the System tab.

Scroll to the bottom of the screen and notice that the Skybridge status is Base Estimation. This indicates that the PPP solution has not converged yet.

In the bottom image, the Skybridge status is showing as Ready. This indicates that the PPP solution has converged. If you lose the RTK corrections from your base, the rover will switch over to a PPP solution.

After losing the RTK corrections, you may see a period of PPPN solution. Remember it is acceptable to survey with this solution. It is not like an RTK float solution.

You will get to the PPPF solution after the RMS comes down some. Note that the RMS is higher than the RTK fixed solution.