Some options are disabled during record and playback.
LabSat 4 Recording Setup
Note: The bandwidth shown for individual signals indicates the region containing the majority of the signal energy not necessarily the full bandwith of the signal.
Increase sample rate by: 
Frequency tuning not avalible at 60 MHz bandwidth.
Centre frequency
Channel A:
Data rate is too high
1575Mhz - 1575Mhz
Channel B:
Data rate is too high
1575Mhz - 1575Mhz
Channel C:
Data rate is too high
1575Mhz - 1575Mhz
Input gain: 
Record rate usage:
Using some data
No issues
Saved record profiles:
Read current profile

Profile name: 

Save and Apply
Save only

Delete selected profile
LabSat 4 File Management
Current directory:  
Directory Rename Delete
No subdirectories found
Create directory
Filename Length Channels Digital Play Rename Delete Download
No recordings found
Loading directory listing...
Current recording settings:
Record 1 channel 1MHz
Digital IO something or other
Recordings will require  Bytes/minute (  Bytes/hour). Currently there is sufficient free space to record for 1 nanosecond.
Indicates an option which requires the current storage device to run at over 90% of its maximum.
Indicates an option which requires the current storage device to run at over 100% of its maximum.
LabSat 4 GNSS Monitor
Current position
Time : ------
Latitude : ------
Longitude : ------
Height above elipsoid : ------
Horizontal velocity : ------
Heading : ------
Signal level controls:
Lock signal level controls together
Band 1 ---- MHz :
dB Mute
Band 2 ---- MHz :
dB Mute
Band 3 ---- MHz :
dB Mute
Note: Monitor only tracks L1 band signals and is for indication only. When recording all signals present on the input port will be shown regardless of recording frequency configuration. When replaying monitor will report no signals if the L1 band was not recorded even if other GNSS signals are present.
LabSat 4 System Setup
NFS mounts:
No NFS mounts set.
Name Server Username Connected Edit Delete
Add new
Wired Network options:
Enable Network Security
Enable DHCP
IP address
Subnet mask
Default gateway
System time:
Use GPS to set clock
Time: ::
Clock options:
Clock source: TCXO OCXO External 10.0 MHz clock input
Enable 10.0 MHz clock output
System options:
Sounds: All enabled Key press silent Disable all sounds
Enable power save
Web page options:
Colour scheme: LabSat Light Dark System Light/Dark setting
Show expert controls

Apply changes

Enable SSD format button
Format internal SSD
LabSat 4 Digital IO Setup
Sample rate:
Time accuracy:   (  )
Max baud rate:  
Digitized channel select
Channel Signal source Record input Replay output
Channel 1    
Channel 2    
Channel 3    
Channel 4    
Ground connections are available on pins 4, 5, 7, 9, 19, 20, 21, 33 and 34.
CAN log file options:
Record CAN data to text log file
Enable Acknowledge
Enable CAN filter
CAN 1:
Baud rate:    Custom rate (kbit/s):
Edit filter
CAN 2:
Baud rate:    Custom rate (kbit/s):
Edit filter
RS232 record options:
Record RS232 data to a log file
RS232 port settings: baud bits parity  stop bits.
Replay options:
Use log file for CAN replay if available
Use log file for RS232 replay if available
Apply changes
LabSat logoLabSat 4

Small, battery powered, multi-constellation and multi-frequency Global Navigation Satellite Simulator. LabSat 4 captures and replays more GNSS signals at much higher resolution than before.

With three channels, a bandwidth of up to 56 MHz and 12 bit I plus 12 bit Q sampling, LabSat 4 can handle almost any combination of constellation and signal that exists today, with plenty of spare capacity for future planned signals.

LabSat 4 can record and replay the following signals:

  • GPS: L1 / L2 / L5
  • GLONASS: L1 / L2 / L3
  • BeiDou: B1 / B2 / B3
  • QZSS: L1 / L2 / L5
  • Galileo: E1 / E1a / E5a / E5b / E6
  • NavIC
Unit type: LabSat 4
Unit serial number: 00000
Unit firmware version: 00000
Unit hardware revision: 00000
Unit MAC address: 00-00-00-00-00-00
Internal GNSS monitor: ----
Internal drive type: SSD
Internal drive capacity: 1000 GBytes
Internal drive free space: 100 GBytes
Racelogic support
Frequency Setup
Select signal display






Show individual signals
Include legacy signals
Bands of interest
L2-L5 band L1 band S band
Number of channels
 1   2   3 
Maximum bandwidth
Expert controls
Enable fixed input gain
Fine tune sample frequency.
Digital IO
Resolution:   (  )
Max baud rate:  
Record and replay
System status:
Currently playing:  
Time:   out of  
Stop replay
Currently recording:  
Stop recording
System is currently busy.
Please wait.
Currently idle.
Replay options:
Loop replay
Pause between loops:
Start replay at:
Replay for:
Record options:
Record for:
File name:
Start recording
GNSS monitor
Select systems to display:




Digital IO setup
IO options
System setup
Setup options
About LabSat 4
About options
Click here to save chart as png image
Connected to LabSat 4 SN: 00000
Demo mode
Current status: idle
LogCAN1:Idle  LogCAN2:Idle
LogRS232: Idle
Digi1:High  Digi2:High