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LabSat 3

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

  • 3 constellations
  • 8 simultaneous signals
  • 9.66 MHz bandwidth
  • 1 or 2 bit (I&Q)
  • Fully standalone

The easiest way to record and replay GPS/GNSS signals right from the palm of your hand

The most affordable, portable, and versatile multi-constellation Global Navigation Satellite Simulator on the market.

If you are selling, testing or developing products incorporating satellite navigation chipsets, then you'll find LabSat 3 makes your job easier, quicker and more cost effective.

Small, battery powered and simple to operate, LabSat 3 allows you to quickly gather detailed, real world satellite data and replay these signals on your bench.


LabSat 3 can be configured to record and replay combinations of the following signals:

  • GPS: L1
  • BeiDou: B1
  • QZSS: L1
  • Galileo: E1



LabSat 3's intuitive interface and compact design makes it the perfect tool for record and replay of GPS/GNSS constellations

In the Lab

LabSat 3 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 fits in a backpack and records RF signals anywhere in the world with ease


Easy to use

LabSat 3 is simple to use and requires no specialist training


Compact and lightweight for use in and out of the lab


Record and replay the major GNSS RF signals

Internal Monitor

LabSat 3's internal monitor keeps track of RF signals

API Available

A developer API is available so you can design your own customised software controller for your LabSat 3

Fully Standalone

Use straight out of the box; LabSat 3 even comes with a pre-recorded library of simulations

Internal Battery

LabSat 3 can be mains powered but also comes with internal battery providing 2 hours of use

External Signals

Record an array of external signals such as CAN, serial or digital data alongside the satellite signals

Free LabSat Trial

Reliable. Again and again

LabSat 3 gives you the power to create a level benchmark for testing ensuring a highly accurate test plan that replicates real-world GNSS conditions every time.

Repeatable. Anywhere. Any time

Create a test bed for your products based on where and how they're likely to be used whether its on a car journey through downtown Tokyo or a mountain trek over the Alps. LabSat 3 will always produce a true representation of satellite constellations wherever the location.

Versatile testing solutions

When used in conjunction with SatGen software, LabSat 3 can reproduce highly accurate simulations for almost any satellite constellation scenario you choose.

Product Specifications

Constellations GPS/Galileo/SBAS/QZSS, GLONASS, or BeiDou
Output Signal Level Adjustable -73 dBm to -103 dBm
RF Channels 1, 2 or 3 (model dependent*)
RF Constellation Centre Frequencies 1575.420 MHz (GPS L1, Galileo E1, SBAS and QZSS); 1602.00 MHz (GLONASS L1 ); 1561.098 MHz (BeiDou B1)
Number of Satellites Observed All in view
Sampling Frequency 16.368 MHz
Bandwidth 9.66 MHz
Quantisation 1 and 2 bit
Data Format I & Q
Additional Logging 2x CAN, RS232 or Digital (1x CAN, RS232 or Digital for single constellation model with upgrade)
Removable Battery Pack
Media Storage Included 1 TB USB HDD, 32 GB SD Card
Active Antenna Voltage Supply 2.8 to 3.3 V
Reference Oscillator Accuracy TCXO ± 2.5; OCXO ± 0.3 ppm**
Reference Oscillator Aging TCXO ±1; OCXO ± 0.3 ppm/year**
Reference Oscillator Stability TCXO ±0.05; OCXO ± 0.05 ppm/ °C**
Operating Voltage 8 V to 30 V DC
Size 167 mm x 128 mm x 43 mm
Weight 960g (910g without battery)

* LabSat 3 comes in six versions ranging from 'Single Constellation / Replay Only' to 'Triple Constellation/ Record & Replay' which can be factory upgraded to any other version. All LabSat versions also come with the option of adding the SatGen simulation software.

** All versions of LabSat 3 are supplied with a standard TCXO (Temperature-compensated crystal oscillator). However, an OCXO (Oven-controlled crystal oscillator) upgrade is available. Please contact your local distributor or RACELOGIC office for more details.

LabSat 3 in Detail

This is where you'll find the answers to the most commonly asked LabSat 3 questions. If you require any further assistance please don't hesitate to contact us or visit the LabSat support website.

How does it work?

LabSat 3 receives the signal from a standard satellite antenna, but instead of processing each of the received signals to calculate a position fix, LabSat 3 digitises and stores the original satellite signals at a very high bandwidth onto a removable SD card or USB hard drive.

The RF output of the LabSat 3 is then connected to the antenna input of the device under test and the recorded data is replayed back as an RF signal. The device under test will then start to track the satellites as though it was travelling along the same path taken by the LabSat 3 during the original recording.

How easy is LabSat 3 to use?

One touch record/replay makes LabSat 3 extremely simple to operate. With its rugged construction, built in battery and clear display, it is very easy to use the LabSat 3 in the same environment as your product will experience in everyday use, with little or no training.

A free library of pre-recorded and simulated files from around the world is included to get you up and running as quickly as possible.

Can I generate my own GPS test scenarios?

If you want to create your own custom test scenario using artificial signals, SatGen software allows you to quickly draw a route using Google maps, and then automatically creates an RF file which can then be transferred to an SD card and replayed on a LabSat 3.

Multiple satellites and multiple constellations can be simulated, and the user can also have precise control over velocity, heading and height profiles.

SatGenv2 Screen montage

A suitable almanac can be automatically downloaded, or defined by the user. SatGen can also import KML files and NMEA files, and the time, date and dynamics are fully user definable.

Free SatGen demo available

Intrigued? You can request a free version of the SatGen software (with a limited scenario length) to see how it works.

What additional signals can I record & replay ?

You can log a variety of other information such as CAN, serial or digital data alongside the satellite signals. When the file is replayed, the embedded data is reproduced at the same time, synchronised to within 60 nS. You can also embed a 1 PPS signal using the internal GPS receiver.

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.

Can I test a device with an internal antenna and no external connector?

Yes, by using our active GPS antenna or the Passive GPS/GLONASS antennas listed in our LabSat 3 accessories section. These antennas connect directly to the RF ports on the LabSat 3 and will transmit the RF signal over short distances to the GNSS device being tested. Please note that you 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.

The LabSat Test Enclosure 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.

How much data can I store on an SD card?

Each channel uses about 14 GB per hour, and the largest SD card which can be used is 128 GB. Therefore you can record just over 9 hours with a single constellation and 4.5 hours with two constellations.

Available SD cards include 32 GB, 64 GB and 128 GB. Storage devices over 32 GB need to be formatted in the FAT32 file system.

Please use SanDisk Extreme SD cards supplied by RACELOGIC (see Accessories section below). The LabSat system is capable of formatting SD cards by selecting the file menu.


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


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

Dipole antenna (RLACS219) included.

Read more

The LabSat 3 USB 1TB hard disk drive (HDD) includes worldwide scenario database of static and dynamic GNSS recordings.

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.

Allows for RS232, CAN and digital data to be recorded/ replayed at the same time as the GNSS RF signals.
An active right angle antenna suitable for recording LabSat 3 GPS L1 only signals.
A passive antenna suitable for record/replay of LabSat 3 GPS/GLONASS L1 signals.
A passive antenna suitable for record/replay of GPS/GLO/BDS L1 signals.

An active antenna suitable for recording GPS, GLONASS, BeiDou, Galileo & L-band correction signals.


A professional-level, portable USB reader that provides maximum high speed file transfer. USB interface speed up to 500 MB/s.


Available with 32, 64 or 128 GB. Meet the LabSat requirements for read/write data transfer speeds of up to 45 MB/s.

A convenient 110/240 volt charger for LabSat 3 internal batteries.
High quality 3.7 V 2260 mAh Li-Po internal battery. Rechargeable.

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One of our in-house experts will be in touch within 48 hours.

Product Support?

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