SatGen Real-Time System Tray

You can enable the SatGen Real-Time+ interface by running the ‘SatGenRealtimeSystemTray.exe’ file.

SatGen Real-Time+ will appear as a round icon in the lower right toolbar on your PC, highlighted by the blue square in the picture below.

Right-clicking on the icon will provide a drop-down menu with the available options. 

You can choose between, the Status Window and the Configure Window. 

Note: You can only have one of these windows open at any given time.

This option will provide you with general information about the status of the current simulation.
 

The Realtime Status icon on the left-hand side of the window will light up green when a LabSat Real-Time+ is connected and will display how long the unit has been connected.

The data in the middle of the window will display both the current speed and the latitude and longitude location of the simulation.

You can see the date and time displayed on the right-hand side of the window under the number of Satellites. 

• If you have configured SatGen to Use System Time inside of the “configuration window”, the time and date specified underneath the number of Satellites will match the actual time (UTC).
• If you have not configured it to Use System Time, it will show the time specified in the SatGen Real-Time+ software.

The option will open a Configuration window that gives you the ability to interact with and adjust certain simulation characteristics.

When you select Use System Date, the simulation will use the date of the Intel NUC. 
If you do not select Use System Date, you can use the calendar view to specify the date of the recording.

As long as you have selected Use System Time, the system will attempt to synchronize the time of the Syncbox with an external time source. You can define the server by inputting NTP server IP.

Note: The system needs an active internet connection for a successful synchronisation.

In the field Max Time-sync Attempts the user may define the amount of attempts to be made to synchronize time before launching a scenario without setting the Syncbox clock.

If you leave the field blank or set to 0, the system will continue to attempt synchronisation until it is successful.

For this feature to work, the config.txt file in the Syncbox must have useRealTimeClock=true included in the configuration file.

If you do not select Use System Time, the system will use the time data from the NMEA stream. The useRealTimeClock=false command would need to be included in the config.txt file currently defining the Syncbox.

This setting gives you the option to select a reference clock to be synchronized with the LabSat unit.

• TCXO set the internal TCXO as standard.
• OCXO would set an internal OCXO as the time source.
  
  Note: This option requires an OCXO fitted into the LabSat Real-Time+ system.
   
• External10 applies if a 10-MHz reference clock is connected to the REF connector on the LabSat Real-Time+ unit. 
• External16 applies if a 16-MHz reference clock is connected to the REF IN connector on the LabSat Real-Time+ unit.
  
  You can enable or disable the Clock Output for 16.368 MHz output to the RLACS161 26-way connector.

This setting gives you the ability to set the output signal. You can use one or two RF channels may be used at the same time.

The available signals are:

• GPS L1 C/A 
• BeiDou B1 
• GLONASS G1
• Galileo E1

If the Galileo E1 and GPS L1 C/A signals share the same centre frequency, and LabSat Real-Time+ has two RF channels available, these two signals may share the same channel. As such, provided that GPS L1 C/A and Galileo are included, you can select a third signal for the output on the second RF channel.

Note: Each added signal will increase the latency of the simulation by approximately 10 to 20 ms.

This setting gives you the ability to set an upper limit to the number of satellites allowed in the scenario. As a large number of satellites require more processing power from the Intel NUC or any other PC device running the simulation, you can limit the number of visible satellites at any single point to adapt the simulation to the computer's performance. 

This setting gives you the ability to reduce the signal-to-noise ratio by adding some artificial noise to the data. The carrier-to-noise-density ratio C/N0 is expressed as attenuation from the pure signal level. C/N0 can now be reduced by up to 15 dB-Hz in 1 dB-Hz steps. If attenuation is zero, a pure signal is generated, otherwise, the same amount of artificial noise is added to all simulated signals. We recommend that you use hardware attenuation.

Note: The attenuation is not calibrated. You should not assume that a 6 dB change in attenuation will adjust the effective C/N0 by exactly 6 dB-Hz.

Click on the Save button to save the current settings in the Configuration window. 

Click on the Cancel button to close the Configuration window without saving any of the current settings. 

Click on the Restart Service button to