ArduSimple simpleRTK3B (mosaic-X5)

These steps connect an ArduSimple simpleRTK3B (mosaic-X5) to the Premium Positioning correction network over NTRIP, using SW Maps (Bluetooth) or mosaic-X5 web interface. 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.

• SW Maps (Bluetooth) or mosaic-X5 web interface.

• 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. Power the receiver and pick your method: Power the simpleRTK3B over USB-C and let the GNSS antenna get a clear sky view. Two equally valid ways to feed corrections: (A) over Bluetooth using SW Maps on a phone/tablet, or (B) using the mosaic-X5's own built-in NTRIP client via its web interface. Do ONE of the two - pick based on whether you survey from a phone (use A) or want the board to pull corrections itself (use B). Have your NTRIP username/password (from your welcome email) ready for either path.

2. PATH A - Pair the receiver over Bluetooth: This uses the ArduSimple Bluetooth/BLE bridge module. On your phone/tablet, pair with the receiver in Bluetooth settings - it appears as a name like 'BT+BLE_Bridge_XXXX' (XXXX varies per unit). If asked for a PIN, the ArduSimple default is 1234. Device name/PIN can vary by module/firmware.

3. PATH A - Connect SW Maps to the receiver: Open SW Maps. Tap the menu (≡) and choose 'Bluetooth GNSS' (on some versions under a 'Connect Instrument' screen, with BLE bridges under a 'Bluetooth LE' option). Choose your paired receiver, set 'Instrument Height', then tap 'CONNECT'. SW Maps should show a live position. Labels shift slightly between versions.

4. PATH A - Open the SW Maps NTRIP client: With the receiver connected, open the menu (≡) and tap 'NTRIP Client' (sometimes 'NTRIP Connection').

5. PATH A - Enter the caster settings: In the NTRIP Client form: Caster IP / Address (Host): rtkpremium.xyz, Port: 2101, Mountpoint: COMMON, Protocol: NTRIP. For Username/Password, enter YOUR OWN from your welcome email - not anyone else's. If a 'Mountpoint' dropdown/refresh appears, pull the source table and pick COMMON.

6. PATH A - Enable Send GGA and connect: Turn ON 'Send NMEA GGA to NTRIP Caster' ('Send GGA' / 'Send position to caster'). Our network needs your approximate position to send corrections, so this must be on. Tap Connect/OK - the byte/data counter should start moving. Then skip to the final 'Confirm RTK Fixed' step.

7. PATH B - Open the mosaic-X5 web interface: Connect the simpleRTK3B to a computer by USB-C. The mosaic-X5 presents as a network adapter; open a browser to http://192.168.3.1. If prompted to log in, ArduSimple ships these with username and password both 'ardusimple' (lowercase) - use whatever yours is set to. (If you use the WiFi access point instead, browse to the receiver's WiFi IP from ArduSimple's guide.)

8. PATH B - Go to Corrections > NTRIP: In the web interface top menu open 'Corrections', then the 'NTRIP' tab - the mosaic-X5's built-in NTRIP client section. Wording varies slightly by firmware, but the corrections/NTRIP area is where you configure the incoming stream.

9. PATH B - Add a New NTRIP client: Click '+ New NTRIP client' (or a '+' add button) and set Mode to 'Client' (the receiver is the rover pulling corrections, not serving them).

10. PATH B - Enter the caster settings: Fill the NTRIP client fields - Caster (Host): rtkpremium.xyz, Port: 2101, Mount point: COMMON, Protocol: NTRIP. For 'User name' and 'Password', enter YOUR OWN credentials from your welcome email. If a 'Get mountpoints' / source-table button is offered, fetch it and select COMMON.

11. PATH B - Set Send GGA to caster: Set 'Send GGA to caster' to 'auto' (or 'enabled'/'on' by firmware). Our caster needs your rough position to begin streaming. Apply/save (typically 'OK' or auto-applies). The NTRIP client status should change to 'Connected'.

12. Confirm RTK Fixed: Watch the solution climb Autonomous (Single) → DGPS → RTK Float → RTK Fixed. In SW Maps (Path A) check the Skyplot/status - the fix type reads 'RTK Float' then 'RTK Fix' and the marker changes colour. In the mosaic-X5 web interface (Path B) open the 'Position' page - the PVT/solution mode should read 'RTK fixed'. With clear sky this normally takes under a minute. If it sticks on Float, recheck the mountpoint is COMMON, Send GGA is on, and the antenna has open sky.

If the fix will not hold

Two supported paths: (A) phone/tablet survey via SW Maps over Bluetooth, or (B) the mosaic-X5's built-in NTRIP client via its web interface at http://192.168.3.1. You don't need both. 'Send GGA to caster' must be enabled on either path. Menu/button names vary a little between SW Maps versions and mosaic-X5 firmware - follow the option that matches each described function. The same mosaic-X5 NTRIP setup also applies to the simpleRTK3B Pro.

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.