Trimble Penmap for Android

These steps connect a Trimble Penmap for Android to the Premium Positioning correction network over NTRIP, using Trimble Penmap (Android) / Trimble Mobile Manager. 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 Penmap (Android) / Trimble Mobile Manager.

• 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. Before you start: Have your tablet/phone online (Wi-Fi or SIM data) and your Trimble GNSS receiver charged and paired over Bluetooth. NTRIP corrections come over the internet. Keep your welcome email handy - it has YOUR personal NTRIP username and password.

2. Pick where corrections are configured: On an R-series receiver (R2/R8/R10/R12), set the NTRIP source inside Penmap (next steps). On a Catalyst DA2, the source is normally set in Trimble Mobile Manager (TMM) and Penmap uses 'Trimble Corrections Hub' - see the DA2 step at the end. If unsure, try the Penmap path first.

3. Open GNSS settings in Penmap: In Penmap, touch-and-hold the GNSS button and tap the settings icon, or open the map menu and choose 'GNSS'. Wording varies slightly by version - look for 'GNSS'.

4. Select your GNSS receiver: In 'GNSS receiver', set Manufacturer to Trimble, then choose Model and Connection (typically Bluetooth) so Penmap connects. Tap 'Info' to confirm it's connected.

5. Add a real-time correction source: Go to 'Real-time corrections' and create/edit a source. Enter a Service Name you'll recognise (e.g. 'Premium Positioning').

6. Choose NTRIP as the service type: In 'Service Type' select 'NTRIP', then tap 'Next'.

7. Enter the Premium Positioning caster: Enter the caster manually rather than from the Caster Name drop-down: server/address rtkpremium.xyz, Port 2101. (Depending on version the address field may read 'IP Address' or 'Caster Name' - enter rtkpremium.xyz there.)

8. Select the COMMON mount point: Tap 'Select stream' (the mount point / source-table list) and choose 'COMMON'. If it won't load, recheck rtkpremium.xyz and port 2101, then retry - the list is pulled live.

9. Enter YOUR NTRIP credentials: When prompted for user name and password, enter the personal NTRIP credentials from your welcome email - unique to your account; do not use anyone else's. Tap 'OK' to save the source.

10. Start corrections and check the GNSS badge: On the map, the GNSS/correction button turns green when corrections are received from your NTRIP stream. Green means data from Premium Positioning is reaching the receiver. Red means none arriving - recheck data connection, caster, mount point and credentials.

11. Confirm a fixed, centimetre solution: Wait for the receiver to converge. Penmap shows position quality on the GNSS button (satellite count, estimated accuracy) and the on-map cursor turns green within your quality limits. A fixed RTK solution shows ~1 - 3 cm estimated accuracy. Don't record points until accuracy is within tolerance. (Penmap reports quality via the badge/cursor and accuracy figure rather than the literal words 'RTK Fixed'.)

12. Catalyst DA2: set NTRIP in Trimble Mobile Manager: For a Catalyst DA2, open Trimble Mobile Manager (TMM), choose a local/external NTRIP service, and enter server rtkpremium.xyz, port 2101, mount point COMMON, and YOUR welcome-email credentials. Save, then in Penmap select 'Trimble Corrections Hub' as the real-time corrections service. (TMM's field labels vary by version - look for the NTRIP/correction-source screen.)

If the fix will not hold

R-series receivers: configure NTRIP inside Penmap. Catalyst DA2: configure NTRIP in Trimble Mobile Manager, then select Trimble Corrections Hub in Penmap. Screen/field names differ between Penmap/TMM versions - match by meaning. A fixed solution is confirmed by a green GNSS badge/cursor and cm-level estimated accuracy rather than a literal 'RTK Fixed' label.

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.