Leica Zeno FLX100 / GG04 plus

These steps connect a Leica Zeno FLX100 / GG04 plus to the Premium Positioning correction network over NTRIP, using Zeno Connect (+ Zeno Mobile / 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.

• Zeno Connect (+ Zeno Mobile / 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 Zeno Connect & your GIS app: On the Android device install Leica Zeno Connect from Google Play, plus your field app (Zeno Mobile or a GIS app like ArcGIS Field Maps). Zeno Connect is the bridge that talks to the antenna and feeds corrected positions to your GIS app. The device needs internet (Wi-Fi or SIM).

2. Power on and pair the antenna over Bluetooth: Switch on the FLX100 / GG04 plus and wait for the GPS light to flash. In Android Settings > Bluetooth, find your FLX100 (or GG04) and pair/connect. You only pair once.

3. Select the antenna in Zeno Connect: Open Zeno Connect, tap the antenna selector at the top (reads e.g. 'No antenna selected') and choose your FLX100 / GG04 plus. When linked, the Connectivity light flashes blue. Menu name varies by version.

4. Open Realtime Corrections settings: Go to Settings > Realtime Corrections (some versions 'GPS Correction Profiles'). Tap + (top-right) to create a new correction profile and name it e.g. 'Premium Positioning'.

5. Choose Internet / NTRIP as the profile type: Select Internet, tap Next, then enable 'Use NTRIP'. Labels ('Internet', 'Use NTRIP', 'Next') vary slightly by version; pick the internet/NTRIP option.

6. Add the caster server (host + port): Tap + to create a server entry: Host / Server / RTK URL = rtkpremium.xyz, Port = 2101, Protocol = NTRIP. Save it, select it, tap Next.

7. Enter YOUR NTRIP username and password: Type YOUR OWN NTRIP credentials from your welcome email - unique to your account; do not use anyone else's.

8. Select the COMMON mountpoint: With the server selected, open the mountpoint list (tap the list icon to fetch mountpoints - needs internet) or type it, and choose COMMON. Tap Next, then Finish.

9. Activate the correction profile: Make sure your new profile is the active one, and the Antenna is still set to your FLX100 / GG04 plus. Zeno Connect dials the caster; on the receiver the data ('10101') light flashes green once corrections stream.

10. Set Zeno Connect as the Android location provider: Leave Zeno Connect running in the background. For FLX100 / GG04 plus, select it as an external Bluetooth GNSS receiver inside your GIS app's location/GNSS settings (choose Leica as the make). (On older GG02/GG03/GG04 you instead enable Zeno Connect under Developer options > 'Select mock location app'.) Wording varies by Android/app.

11. Wait for the position to converge: In Zeno Connect's main screen accuracy/height/position values populate. Hold the antenna with clear sky and stay still a minute or two while it converges from autonomous/float toward fixed.

12. Confirm a fixed, centimetre solution: You're ready once it reports FIXED with ~1 - 2 cm horizontal accuracy. In Zeno Mobile the RTK icon shows 'Connected to RTK' and accuracy drops to ~1 cm. If it stays float, recheck internet, COMMON, credentials, and sky view.

If the fix will not hold

Menu/button names differ between Zeno Connect versions and between Zeno Mobile and third-party GIS apps (e.g. ArcGIS Field Maps); where labels vary this guide is generic. A working mobile internet connection and clear sky are required to reach and hold a fixed RTK solution.

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.