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LabSat 3 Wideband

Racelogic's compact yet powerful multi-constellation, multi-frequency GNSS device testing system

  • 3 RF channels
  • 4 constellations
  • 20 simultaneous signals
  • 56 MHz bandwidth
  • 6 bit resolution
  • HTML interface
  • API available

Record & replay more GNSS signals than ever before

The LabSat 3 Wideband is Racelogic's most powerful LabSat yet. Now you can record and replay more GNSS signals at much higher resolution than ever before.

With three channels, a bandwidth of up to 56 MHz and 6 bit sampling (3 bit I & 3 bit Q), LabSat 3 Wideband can handle almost any combination of constellation and signal that exists today, with plenty of spare capacity for future planned signals.

Small, battery powered and with a removable solid state disk, LabSat 3 Wideband allows you to quickly gather detailed, real world satellite data and replay these signals on your bench.


LabSat 3 Wideband can record and replay the following signals:

  • GPS: L1 / L2 / L5
  • GLONASS: L1 / L2 / L3
  • BeiDou: B1 / B2 / B3
  • QZSS: L1 / L2 / L5 / L6
  • Galileo: E1 / E5a / E5b / E6
  • NavIC: L5 & S-band



API Available

API available for development teams


Supports future constellation launches such as L2C, L5 and L1C.

Internal Battery

Up to 2 hours runtime in the field thanks to its internal removable battery


LabSat 3 Wideband records and replays more constellations than ever before with spare capacity for future planned signals

In the Lab

LabSat 3 Wideband allows you to quickly gather detailed real world satellite data and replay these signals on your bench

In the Field

Compact and portable, LabSat 3 Wideband fits in a backpack and records RF signals anywhere in the world with ease

HTML User Interface

To simplify the configuration and device control process, LabSat 3 Wideband has an internal web server for configuration, which can be easily accessed via a standard web browser on your PC.

The image below shows an example test setup within the LabSat 3 Wideband web server. All GNSS signals and three signal bands are selected, a bandwidth of 56 MHz and a current quantisation of 1.

See demo version

Record & replay additional signals

LabSat 3 Wideband can record a range of additional signals, synchronised to the GNSS input: dual-CAN, RS232, and digital inputs are simultaneously captured increasing the level of playback realism and allowing for a wider range of testing.

This flexibility means that the development of products incorporating this variety of signal streams can be conducted with absolute convenience on the bench, without the need for costly and time consuming field trials. NMEA data is also recorded via the inbuilt GNSS receiver.

Try demo version

Setting bandwidth, frequency & quantisation

Bandwidth Setting

LabSat 3 Wideband has three bandwidth settings. 56 MHz, 30 MHz and 10 MHz.

The bandwidth of the GNSS signals varies, for example a GPS L1 C/A code signal has a bandwidth of 24 MHz. However, due to the signal design a bandwidth of 9.66 MHz will capture enough data to allow the receiver under test to acquire, track and navigate as with LabSat 3 single, dual and triple constellation devices.

Other signals with a different signal design like Galileo E1 PRS signal has a bandwidth of 46 MHz and a signal design spread across the bandwidth.

Many other signals have a similar requirement, like GPS L1/L2 P code and M code. LabSat 3 Wideband has been designed to capture all these signals.

Frequency Setting

LabSat 3 Wideband is designed to capture and replay GNSS signals in the upper L-Band (1559 - 1610 MHz) and lower L-Band (1164 - 1300 MHz).

Quantisation setting

LabSat 3 Wideband can record and replay GNSS Signals at quantisation levels of:

3 bits (3 bits I + 3 bits Q)
2 bits (2 bits I + 2 bits Q)
1 bit (1 bit I + 1 bit Q)

Testing devices with internal antenna/ without external connectors

You can test a device with an internal antenna and no external connector by using an active GPS antenna or the Passive GPS/GLONASS antennas. These antennas connect directly to the RF ports on the LabSat 3 Wideband and will transmit the RF signal over short distances to the GNSS device being tested.

You will however need to be in an RF-screened environment to avoid interference with live signals. This can be done in a fully screened RF room or a portable enclosure, such as the LabSat Test Enclosure. This allows for secure screened testing and is ideal when working with devices that do not have an external antenna connector - such as wearables, smartphones, and sports/fitness trackers.

Product Specifications

Constellations GPS L1, L2, L5; Galileo E1, E5a/b, E6; GLONASS L1, L2, L3; BeiDou B1, B2, B3; QZSS L1, L2, L5, L6; NavIC L5, S-band; In Band SBAS, user defined frequency bands like Iridium & SiriusXM radio
Nominal Output Signal Level -73dBm/MHz @ 0dB,
variable attenuator provides between +20 dB and –69 dB of adjustment during replay
RF Channels 3
RF Channel Centre Frequencies Selectable
Number of Satellites Observed All in view
Sampling Frequency 10.23 MHz, 30.69 MHz, 58 MHz
Bandwidth 10 MHz, 30 MHz, 56 MHz
Quantisation 1, 2 or 3 bit (I & Q)
Data Format I & Q
Additional Logging 2x CAN channels, 4x Digital channels, 1x RS232 channel
Removable Battery Pack
Media Storage Included 1 TB Solid State Drive, 4 GB SD Card (SD card for firmware upgrades only)
Active Antenna Voltage Supply 2.8 V to 4.6 V
Reference Oscillator OCXO, Temperature Stability ± 0.05 ppm, Frequency Stability ± 0.3 ppm over first year
TCXO, Temperature Stability ± 0.05 ppm, Frequency Stability ± 0.1 ppm over first year
Operating Voltage 8 V to 30 V DC
Size 167 mm x 128 mm x 46 mm
Weight 1.2 kg


To purchase any of the below accessories, please contact your local distributor or email .

LabSat 3 GNSS Test Enclosure


RF shielded enclosure suitable for testing GNSS devices with internal antenna.

Dipole antenna (RLACS219) included.

More info

Passive Rebroadcast Antenna


A passive antenna suitable for replaying GPS L1/L2/L5, GLONASS G1/G2/G3, BeiDou B1/B2, Galileo E1/E5a+b & L-band corrections signals.

LabSat 3 Wideband Replacement Antenna


An active antenna suitable for recording GPS L1/L2/L5, GLONASS G1/G2/G3, BeiDou B1/B2, Galileo E1/E5a+b & L-band corrections signal.

LabSat 3 Locking Expansion Connector


Allows for RS232, CAN and digital data to be recorded/ replayed at the same time as GNSS RF data.

Ensures that a secure lock is achieved during recording in challenging environments.

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