Septentrio Mosaic X5

Septentrio mosaic‑X5 - How to Configure RTKdata.com Corrections

Septentrio mosaic-X5 receiver configured with RxTools and RTKdata.com

Get centimeter‑level positioning on your Septentrio mosaic‑X5 by streaming RTK corrections from RTKdata.com over NTRIP. This guide walks you through RxTools (RxControl + DataLink) so you can go from Autonomous/SBAS → RTK Float → RTK FIX quickly and reliably.

Requirements

  • Septentrio mosaic‑X5 with GNSS antenna (clear, open sky)

  • RxTools installed (includes RxControl and DataLink)

  • Computer with internet (or tether via mobile hotspot)

  • RTKdata.com credentials (username & password).

Don’t have an RTKdata.com account yet? 👉 Start 30-day Free Trial or View Pricing

Step‑by‑step setup

1

Wire up & open RxControl

  1. Connect the mosaic‑X5 to your computer via USB and attach an RTK‑capable antenna with open sky.

  2. Launch RxControl and connect to the receiver (Serial → select a virtual USB COM port). Tip: The USB driver exposes two virtual COM ports; you can use one for RxControl and the other for DataLink.

2

Start DataLink and create the two connections

Open DataLink (from RxControl’s Tools menu or directly):

Connection 1 (receiver side)

  • Click Serial → choose the virtual USB COM connected to the receiver → Connect.

Connection 2 (network side, NTRIP client)

  • Click NTRIP (Client) → set IP, Port, Mountpoint, Username/Password (see next step) → Connect.

Bridge the links

  • In DataLink, enable Link2 in the Connection 1 panel and Link1 in the Connection 2 panel so data flows both ways.

3

Enter RTKdata.com connection settings (Regional hostnames + IP fallback)

Use the regional RTKdata.com hostname where possible. If your device only accepts numbers or your network DNS blocks hostnames, use the numeric IP fallback. Keep ALL CAPS where noted.

  • Host (domain): rtk.rtkdata.com

  • Host (IP fallback): 13.56.117.10

  • Port: 2101

  • Username / Password: From RTK Credentials in the internal dashboard (not website login)

  • Mountpoint (ALL CAPS): AUTO (recommended) — or AUTO_WGS84, AUTO_ITRF2020, AUTO_ITRF2014

Only these four mountpoints are valid. Typing local CRS names as mountpoints will result in no corrections. Always use ALL CAPS.

4

Output GGA @ 1 s so the NTRIP client can localize you

In RxControl: Communication → Output Settings → NMEA Output

  • Stream 1 → USB1

  • Enable GGA

  • Interval: 1 second Click OK.

Result: DataLink now sees GGA on Connection 1 and forwards it to the NTRIP client on Connection 2; RTCM corrections flow back to the receiver.

5

Verify the correction stream & get FIX

  • In DataLink, confirm bytes in/out on both connections.

  • In RxControl, watch the solution status: Autonomous → RTK Float → RTK FIX. If you remain in Float, move to open sky, confirm IP/Port/credentials, and set mountpoint to AUTO.

Vertical reference (heights)

RTKdata streams positions in the selected geodetic frame; heights are ellipsoidal by design. If you need orthometric (mean sea level) elevations, load a geoid on your rover (if supported) or apply a geoid in your GIS/photogrammetry workflow during processing/export.

Troubleshooting (fast fixes)

  • No connection / no RTCM: Verify IP + Port = 2101, username/password, and mountpoint = ALL CAPS (AUTO recommended). Make sure the links between Connection 1 ↔ Connection 2 are enabled in DataLink.

  • GGA not seen by DataLink: Re‑check RxControl → NMEA Output is set to USB1, GGA ticked, 1 s interval. The COM port used by DataLink must match the interface you enabled.

  • COM port busy: The USB driver exposes two virtual COM ports — use one for RxControl and the other for DataLink, or disconnect one app while configuring the other.

  • Stuck on Float: Ensure open sky, reasonable baseline to the nearest station, and mountpoint AUTO.

Why RTKdata.com?

  • Centimeter‑level RTK (typ. 1–2 cm horizontal, 2–3 cm vertical)

  • Global reach with dense coverage in key regions

  • < 1 s real‑time latency

Need help? → Network parameters · Troubleshooting

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