Trimble R1 / R2

These steps connect a Trimble R1 / R2 to the Premium Positioning correction network over NTRIP, using Trimble Mobile Manager (Android/iOS) + a GIS app. 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.

• Trimble Mobile Manager (Android/iOS) + a GIS app.

• 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. Install Trimble Mobile Manager: On Android or iOS, install Trimble Mobile Manager (TMM) and open it. TMM is the free utility that configures the R1/R2 and feeds your position to your GIS app. Sign in if prompted.

2. Power on and pair the receiver over Bluetooth: Hold the receiver's power button until the LED blinks. In the OS Bluetooth settings, pair the receiver (it appears by model/serial, sometimes 'GNSS'). If a PIN is requested, the Trimble default is 0000 unless changed.

3. Select the receiver as the position source in TMM: In TMM open the Position source (GNSS receiver) setting, set type to Bluetooth, list connected/nearby devices, and select your R1/R2. Wait for connected status. Wording varies slightly by version.

4. R2 only: confirm a correction-capable option is active: The R2 needs an RTK Rover (real-time corrections) option/subscription enabled for cm RTK from an NTRIP caster. If you only see SBAS/autonomous accuracy, the option may not be active - contact Premium Positioning or your dealer.

5. Open Configuration: Tap the Configuration (gear) icon and select Configuration to reach the correction settings.

6. Set the correction source to Custom local: Tap GNSS correction source and select 'Custom local' - the option for a third-party NTRIP caster.

7. Choose the NTRIP protocol: For Protocol select 'NTRIP' (not Direct).

8. Enter the caster server and port: Server/URL: rtkpremium.xyz, Port: 2101 - the same for every Premium Positioning customer.

9. Enter YOUR NTRIP username and password: Set the corrections account username/password to the personal credentials from your welcome email - unique to you; do not use anyone else's.

10. Select the COMMON mount point: TMM connects and downloads the mount point table. Select COMMON. If the list doesn't load, re-check server, port and credentials.

11. Set the reference frame: Select the GNSS source reference frame; if unsure choose 'Auto'. Set a custom epoch only if advised.

12. Share TMM's position with your GIS app: Android: in TMM Application settings turn on 'Share location', then in Developer options set 'Select mock location app' to Trimble Mobile Manager and disable battery optimisation for TMM. iOS: TMM feeds the system location automatically - in your GIS app set the location source to the system/Trimble location. Confirm the GIS app reads the external receiver.

13. Confirm RTK Fixed: Watch TMM (and the GIS app's accuracy): with corrections flowing it should reach 'RTK Fixed' at cm-level. If stuck on Float, leave it in open sky; if it never fixes, recheck COMMON, credentials, and sky view.

If the fix will not hold

The R2 needs an active RTK Rover/correction option for cm RTK. Some TMM labels differ between versions and between Android and iOS (position source / GNSS receiver, GNSS correction source, Share location) - match the equivalent option. Internet (mobile data or Wi-Fi) is required for the NTRIP stream.

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.