LabSat 4 is a powerful GNSS Record & Replay simulator that offers exceptional performance while maintaining the familiar LabSat benefits of being compact, portable, and highly cost-efficient.
Featuring multi-constellation and multi-frequency Record & Replay with 12-bit quantization, 10-60 MHz variable bandwidth and 3 configurable RF channels.
SatGen Simulation Software adds the ability to create custom scenarios for simulated testing.
Features:
Performance
LabSat 4 has 3 RF channels that can be individually customized. Each channel can be set with up to 12-bits I & Q quantization with intermediate setting choices of 1, 2, 4, 8 and 12 bits. The bandwidth is also variable and can be set from 10 - 60 MHz.
These performance settings comfortably capture almost any combination of GNSS signals simultaneously, whilst ensuring the efficient use of recording resources and file management.
For increased efficiency, custom record settings can be saved and quickly selected for future recordings.
Multi-Constellation & Multi-frequency
LabSat 4 is engineered to capture and simulate GNSS signals within the upper and lower L-band, as well as the S-Band. LabSat 4 can Record & Replay the following signals:
GPS L1, L2, L5
Galileo E1, E5a/b, E6
GLONASS G1, G2, G3
BeiDou B1, B2a/b, B3
QZSS L1, L2, L5, L6
NavIC L1, L5, S-Band
SBAS L1, L5
Further signals can be configured with the Web Interface. Bespoke requirements like Iridium & Sirius XM radio frequencies are available on request.
High Speed Data Transfer
LabSat 4 offers efficient file management via high-speed data transfer to and from the 7.6 TB internal storage via Gigabit Ethernet and USB 3.
This makes it easy to download recorded scenarios when conducting live-sky recording in the field. Additionally, it is quick to upload recorded or simulated scenarios ready for replay.
User-friendly UI
LabSat 4 offers a user-friendly, web interface that is fully accessible through most web browsers. This interface allows complete access and control over the device, enabling recording settings to be customised to meet specific needs.
The scenario library stored on the internal SSD can be organised and managed via the web interface. It offers the flexibility to select and replay files with full command over the attenuation levels for each scenario.
The interface’s customisation extends to each RF channel, both in the pre-record phase and during replay, providing the ability to adjust critical settings such as quantization, centre frequency, bandwidth, and sampling rate.
This level of control ensures precise configuration of the record profile for each available channel, making LabSat 4 an ideal solution for a wide range of GNSS testing and simulation requirements.
API Available
LabSat’s Application Programming Interface (API) provides control and testing automation that allows test scenarios to be programmed to automatically repeat or play in a set order. This improves efficiency with significant testing programs able to be run continuously, without the need for human supervision.
Additionally, the use of the Ethernet connection allows for centralised control of the API, enabling testing at global production facilities to be controlled remotely from a central office. This combination can significantly increase consistency in testing and reduce the scope for user error.
Additional Signals
LabSat 4 can record a range of additional signals, synchronised to the GNSS input, including dual-CAN, CAN-FD, RS232, digital inputs and correction signals such as DGNSS and RTK.
Simultaneously capturing additional signals can increase the level of playback realism and allows for a wider range of testing.
NMEA data is also recorded via the inbuilt GNSS receiver.
A Video VBOX can be used in combination with LabSat to record video of the test route. This helps to identify the effect of external conditions on your device, such as why exactly was there a drop-out or multi-path reflection at a particular point in the test, and what caused it.
Conducted or Radiated Testing
If the device under test has an external antenna connection, the LabSat RF output can be connected directly to it for conducted testing.
If the device has an internal antenna and no connection port, either an active GPS antenna or a Passive GPS/GLONASS antenna can be connected to the LabSat RF output, and they will transmit the RF signal over short distances to allow for radiated testing.
Radiated testing will 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.
Record & Replay Options
LabSat 4 is available in two models – Record & Replay or Replay Only.
The Record & Replay version gives full functionality in one box and is a great choice when starting out with GNSS testing. It can be used to record live-sky signals and build up a bank of recorded scenarios ready for Replay through any LabSat 4.
The Replay Only version is ideal for bench testing or production line testing when only the replay of an existing scenario is needed.
Both models are compatible with SatGen Simulation Software, allowing users to generate custom scenarios for replay testing.
Expand Testing with SatGen Software
SatGen Simulation Software allows you to create a GNSS RF I&Q or IF data file based on a user-generated trajectory that can be replayed on a LabSat GNSS Simulator. This allows you to simulate almost any kind of test at any time, date and location.
Scenarios can feature multi-stop routes and include the crossing of time zones, leap seconds and roll-overs.
