SonTek RS5 User Manual (August 2020) 141
Appendix D. How to Enable External GNSS using the GNSS
Unlock Code
The GNSS/GPS unlock and configuration operations can be found through Tools >
Hardware Utilities > Instrument Options. Please note that the RS5 system must be
connected to see these options. The Instrument Options dialog is shown below:
If the user has upgraded their RS5-Basic system to RS5-Max, they will need to first use
the unlock code provided by SonTek to enable the GNSS/GPS capabilities of the Max
system. Please note that the following steps do not need to be performed if the user has
purchased a Max system directly from SonTek, as these steps will already have been
configured.
The instrument unlock code is an 8-digit alpha-numeric code specific to each RS5
system. Enter the code into the space in the “Enable GNSS” line and press Apply Code.
If the code is entered properly, the following message will appear:
The user will also see that the GNSS feature has been enabled: