SonTek RS5 User Manual (August 2020) 142
If the user is configuring an external GNSS/GPS antenna to use for the first time, the
antenna must be configured for serial communications at a baud rate of 38400.
The data output rate for the strings required should be configured according to the
following table:
UTC time, position, quality and DGPS
diagnostics
ground speed and direction
UTC date and magnetic declination
detailed satellite (in view) information
list of satellites used in fix
When configuration is finished, the external antenna must be connected via serial cable
to the RS5 system through the GPS connector port. Power both the RS5 and antenna
on, and go outside to a location where a reliable GNSS/GPS signal can be achieved.
Then, click the “External GNSS” button highlighted below: