Symptoms
- LabSat 3 becomes unresponsive
- Replay or recording stops unexpectedly
- The unit requires a manual restart
Resolution
Restart the unit
- Press and hold the power button for at least 30 seconds
- Release the button
- Press the power button briefly to switch the unit back on
Symptoms
- GNSS receiver under test does not acquire satellite lock
- Slow or unstable satellite acquisition during replay
- Incomplete or inaccurate position solution
Possible causes
- Poor quality recorded GNSS data
- Antenna or cable connection issues
- Stored almanac data in the receiver under test
- Incorrect antenna setup during recording
Resolution
1. Verify recording conditions
During recording:
- Ensure the GNSS antenna had a clear view of the sky
- Avoid nearby obstructions such as:
- Buildings
- Trees
- Covered areas
Poor recording conditions can reduce replay signal quality.
2. Check antenna connections
- Confirm the antenna is connected securely
- Inspect connectors for dirt or contamination
- Check cables for damage or excessive bending
If possible:
- Test using another known working antenna
3. Perform a cold start on the receiver under test
Perform a cold start after starting replay.
Stored almanac data in the receiver may cause it to search for incorrect satellites during replay.
4. Check antenna ground plane requirements
GNSS antennas typically require a suitable ground plane for optimum performance.
If recording:
- Outside a vehicle
- On a non-metallic surface
use an antenna with an integrated ground plane.
Additional information
Objects such as buildings or trees can reduce the number and quality of tracked satellites. Atmospheric conditions such as clouds generally do not significantly affect LabSat replay performance.
Still not working?
If the receiver under test still cannot achieve satellite lock, contact Racelogic Support.
Symptoms
- Slow scenario transfer to or from LabSat 3
- Long file copy times
- Reduced transfer performance when using external storage
Possible causes
- USB 2.0 connection in use
- Slow SD card reader
- Unsupported or low-performance storage hardware
Resolution
1. Use USB 3.0 connections
For optimum transfer performance:
- Connect LabSat 3 storage devices to a USB 3.0 port
- Use a USB 3.0 compatible SD card reader
2. Check transfer hardware
- Avoid low-speed USB hubs where possible
- Confirm the PC supports USB 3.0 transfer speeds
- Use high-performance storage devices when transferring large scenarios
Additional information
LabSat 3 uses high-speed SD storage for recording and replaying RF data. Transfer performance depends on both the computer hardware and connected storage devices.