NTL104 GNSS RTK/INS Module With S-band Support

  • Multi-constellation multi-frequency GNSS signals tracking (including S-band)
  • GNSS+INS capabilities for position, velocity, time and attitude
  • PPP positioning
  • RTK positioning
  • Heading + Pitch determination
  • Reception of RTCM 3.1 (Legacy messages), RTCM-SSR corrections
  • RTCM 3.3 (MSM + Legacy messages), NMEA 2.3, NMEA 4.11, NTL Binary Output data format
  • High update rate
  • Possibility to upload customer proprietary or third-party software
  • Industrial standard form-factor (71mm x 46 mm)

Datasheet of NTL104



The NTL104 dual-antenna high precision OEM GNSS receiver module provides heading (as well as pitch) determination combined with precise RTK/PPP positioning. It tracks GPS L1,L2/L5, GLONASS L1,L2, Galileo E1,E5a/E5b, BeiDou B1,B2, NavIC (IRNSS) L5,S-band and SBAS L1 signals. Additional on-board loosely-coupled GNSS+INS integration algorithm helps to fuse data from GNSS measurements unit with MEMS-based IMU sensor. The raw measurements data are available for user’s secondary processing, as well as API functions for own developments. Thus, using our modules users are free to create an effective solution for each specific application.



Supported GNSS signals
Master antenna GPS L1(C/A),L2(C)/L5, GLONASS L1(C/A), L2(C/A), Galileo E1, E5a/E5b, BeiDou B1,B2, NavIC(IRNSS) L5,S-band, SBAS L1
Slave antenna GPS L1(C/A),L2(C), GLONASS L1(C/A),L2(C/A), Galileo E1, BeiDou B1
Measurement precision (one sigma) 
C/A pseudoranges1 20 cm
L1, L2 carrier phase 0.8 mm
Accuracy (RMS)   Horizontal Vertical
Position – Standalone mode 1.5 m 2 m
– SBAS mode 0.6 m 0.8 m
– DGPS mode 0.4 m 0.6 m
– RTK mode          5 mm + 0.5 ppm 8 mm + 1.0 ppm
– PPP mode2          5 cm 10 cm
– GNSS+INS mode2          1.5 m 2 m
Velocity 0.02 m/s 0.03 m/s
Orientation angles accuracy (RMS)
Heading3  0.06°
Pitch3 0.15°
Position data update rate
Standalone mode 1 Hz
RTK mode 1, 5, 10 Hz
PPP mode 1 Hz
GNSS+INS mode Up to 200 Hz
Raw data update rate 1, 5, 10, 20 Hz
Interfaces 2 x UART, 1 x Ethernet, 1 x USB
Interface protocols RTCM 3.3 (MSM+Legacy messages), NMEA 2.3, NMEA 4.11, NTL Binary, NovAtel OEM
Ambient conditions
Operating temperature –40 °C … +80 °C
Storage temperature –55 °C … +85 °C
Electrical parameters
Supply voltage 3.3…5 V
Power consumption5 Min 0.25 W  / max 1.8 W
Weight and size
Dimensions (L х W х H) 71 mm х 46 mm х 10 mm
Weight (without package) <45 g
1 Smoothed pseudoranges
2 Optional. Special firmware is required. It can be provided by NTLab or developed and added to on-board MCU by the user
3 On 2 m baseline length
4 GNSS+INS integration
5 Special firmware is required for Min. power consumption mode

Related Documents

GNSS-PPU-SETUP-GUIDE-6-62-00NTL104 Navigation Module
GNSS-DCP-BUILD-6-70-01NTL104 Navigation Module
NTL-BROWSER_GUID-02NTL104 Navigation Module
NTL_Br_6.0.8.zipNTL105 Navigation Module


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  • SMA female to MMCX male cables – 2pcs.
  • USB standard A to mini-B cable – 1pcs.
  • Banana plug to male DC jack connector cable – 1pcs.
  • Documentation set
  • Packaging

NTL Eva Board manual NTL Eva Kit TW manual NTL Eva Kit HX manual



GNSS Surveying Antenna HX-CSX608A

GNSS Surveying Antenna HX-CSX608A

  • The antenna part adopts the multi-feed design scheme to realize the coincidence of the phase center and the geometric center to minimize the influence of the antenna on the surveying deviation.
  • The high gain of antenna element and wide beam width provide the effect of receiving a signal with a low elevation angle, and can still receive the satellite normally in some cases with serious occlusion.
  • It can effectively reduce the influence of multipath on the surveying accuracy.
  • Waterproof and anti UV covers, increasing the reliability for long term field work of antennas.