u-blox ZED-F9P via u-center

These steps connect an u-blox ZED-F9P via u-center (PC) to the Premium Positioning correction network over NTRIP, using u-blox u-center (Windows). They assume you already have your NTRIP credentials.

Before you start

• Your NTRIP username and password, from your Premium Positioning welcome email or your account on the customer portal.

• u-blox u-center (Windows).

• A working internet connection on the controller or phone.

• A clear view of the sky at the point you are measuring.

Network settings

These are the same for every Premium Positioning customer. Only your username and password are unique to you.

• Server or host: rtkpremium.xyz

• Port: 2101

• Mountpoint: COMMON

• Protocol: NTRIP

Steps

1. Use classic u-center: On Windows, install and open the classic u-center (the one for F9 receivers). u-blox also ships u-center 2, but for the ZED-F9P use classic u-center, which has the built-in NTRIP Client used here. Labels below are from classic u-center; match by meaning if yours differs.

2. Connect antenna and receiver: Connect the GNSS antenna (clear, open sky) to the ZED-F9P, then plug the receiver into the PC via USB. Windows assigns a COM port; check Device Manager > Ports (COM & LPT) if unsure.

3. Open the COM port in u-center: Select the receiver's COM port from the toolbar dropdown (or Receiver > Connection). Live data should update. The ZED-F9P USB port typically uses 38400 baud if asked.

4. Confirm a basic position fix: Open View > Docking Windows > Data. Confirm the receiver is tracking satellites and Fix Mode shows 3D before adding corrections.

5. Open the NTRIP Client dialog: Menu bar > Receiver > NTRIP Client to open the configuration dialog. (If not there, look under the Receiver menu for an NTRIP / NTRIP Client entry.)

6. Enter the caster address and port: Set the NTRIP caster/server address to rtkpremium.xyz and the Port to 2101. Leave the protocol as standard NTRIP.

7. Enter YOUR NTRIP username and password: Type the NTRIP username and password from your welcome email into the Username and Password fields - unique to your account; do not use anyone else's. If you can't find them, contact support.

8. Update the source table: Click Update source table (or Update / Get source table). u-center contacts the caster and downloads the mountpoints; wait a few seconds.

9. Select the COMMON mountpoint: From the NTRIP mount point dropdown (or the Mount point details button), select COMMON - the mountpoint serving network corrections to all customers.

10. Apply and connect: Click OK to apply. u-center connects to the caster and streams RTCM corrections into the ZED-F9P.

11. Confirm corrections are flowing: The NTRIP client icon at the bottom of the u-center window turns green when corrections are received. If it stays red/grey, re-check address, port, mountpoint, credentials, and that the antenna has open sky.

12. Watch Fix Mode reach RTK FIXED: In the Data view watch Fix Mode move 3D → 3D/DGNSS → RTK FLOAT → RTK FIXED. FIXED (cm-level) confirms the receiver is fully connected to the caster and working.

If the fix will not hold

Use classic u-center (not u-center 2) for the ZED-F9P. A clear sky view and stable internet are required; reaching FLOAT then FIXED can take from seconds to a couple of minutes. Menu/button labels vary slightly by u-center version - match by function.

For more, see RTK corrections troubleshooting and Fix inconsistent RTK accuracy on site.

Need help

Support is available 24/7. Include your receiver model, the mountpoint, the solution status, and the correction age when you get in touch.