> For the complete documentation index, see [llms.txt](https://docs.premium-positioning.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.premium-positioning.com/guides/sw-maps-android.md).

# SW Maps (Android)

These steps connect a SW Maps (Android) to the Premium Positioning correction network over NTRIP, using SW Maps 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.
* SW Maps 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 SW Maps and gather your details: Install SW Maps (by Softwel) from Google Play. Have your Premium Positioning NTRIP username/password ready. SW Maps is a free, brand-agnostic app that works with most Bluetooth GNSS receivers (Emlid, ArduSimple/u-blox ZED-F9P, SparkFun, and many commercial receivers).
2. Power on and pair your receiver: Turn on your receiver and put it in Bluetooth pairing mode per its manual. In Android Settings > Bluetooth, scan and pair the receiver once (some ask for a PIN such as 0000 or 1234). SW Maps connects to the already-paired device.
3. Open the side menu in SW Maps: Launch SW Maps, create/open a project if prompted, and tap the menu icon (three lines) at top-left - this is where connection options live. Wording varies slightly by version.
4. Open Bluetooth GNSS Connection: In the side menu tap 'Bluetooth GNSS' (sometimes 'Connect Instrument', or a Bluetooth icon in the toolbar) to open the receiver-connection screen.
5. Select your receiver and set instrument details: Choose your receiver from the paired list. Set 'Instrument Model' to match, or pick a generic option ('Generic NMEA' / 'Generic RTK Receiver'). Enter 'Instrument Height' (pole/tripod height incl. antenna offset). Tap 'CONNECT'.
6. Confirm the receiver is streaming: The status bar should show live coordinates and satellite counts from the external receiver (metre-level before corrections). If you still see phone-GPS accuracy, recheck the Bluetooth selection and instrument model.
7. Open the NTRIP Client: Open the side menu and tap 'NTRIP Client' ('NTRIP Connection' in some versions).
8. Add a new NTRIP profile: Tap 'Add New Profile' or '+' and name it (e.g. 'Premium Positioning'). A saved profile lets you reconnect quickly next time.
9. Enter the caster address and port: 'NTRIP Caster Address': rtkpremium.xyz - 'NTRIP Port': 2101. Leave the protocol as NTRIP (NTRIP v1) - SW Maps connects over NTRIP by default.
10. Enter YOUR username and password: In 'User Name' and 'Password' enter the personal NTRIP credentials from your welcome email - unique to your account. If login fails, check for stray spaces or capitalisation.
11. Fetch and select the mountpoint: Tap the mountpoint field (or a fetch/refresh/dropdown control) so SW Maps loads the mountpoint list, then select 'COMMON'. If it doesn't load, double-check address, port, username and password and retry.
12. Turn on Send NMEA GGA to Caster: Enable 'Send NMEA GGA to NTRIP Caster' - this sends your approximate position to the network so it can compute corrections. Leaving it off can keep you stuck on FLOAT.
13. Connect to the caster: Tap 'CONNECT' (or 'Start'). The received-bytes/data counter should increase, confirming corrections are flowing from rtkpremium.xyz to your receiver.
14. Confirm an RTK FIXED solution: Open the side menu and tap 'GNSS Status' (or 'Skyplot') to watch the fix type move Single/DGPS → RTK Float → RTK Fixed, with accuracy \~1 - 3 cm. The location marker also turns green at a fix. You're ready to collect points.

### If the fix will not hold

SW Maps is brand-agnostic and works with most Bluetooth GNSS receivers. Menu/field names vary slightly between versions/devices - if something is worded differently, find the equivalent ('NTRIP Client' vs 'NTRIP Connection', 'CONNECT' vs 'Start'). Your username/password are personal and typed into the app only. A clear sky view and stable mobile data give the fastest, most reliable fix.

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.