SonTek RS5 User Manual (August 2020) 35
for a complete list of light indicators and meanings. The complete manual for the Geode
antenna can be found from the Juniper Systems website at
https://junipersys.com/data/support/geode/Geode-manual-English.pdf
The Geode system will be configured to connect directly to your RS5 (through the
cable) with no other setup required, but if the user is interested in viewing antenna
diagnostics (number of satellites, quality of fix, etc.) or changing settings for other
purposes, Juniper Systems provides both a Phone App as well as a desktop software to
connect to the antenna directly via Bluetooth. More information on these tools can be
found in the manual mentioned above.
5.2.2 RTK GNSS
Coming Soon!
5.2.3 External Antenna
First, ensure that the GNSS unlock code has been purchased and provided by SonTek.
This is typically an 8-digit alpha-numeric code and is specific to each RS5 unit. To
enable the code, please see detailed instructions in Appendix D.
The user is responsible for charging and operating their external antenna of choice,
including the cable connection. The antenna/receiver must be configured prior to use
with the RS5. The NMEA messages currently supported by the RS5 GNSS protocol are
listed in Table 1, along with their required output rate.
Table 1. RS5 Supported NMEA GPS Messages
Message Required Output Rate
Description
GGA
5Hz
UTC time, position, quality and DGPS
diagnostics
VTG
5Hz
ground speed and direction
RMC
1Hz
UTC date and magnetic declination
ZDA
1Hz
UTC date
GSV
1Hz
detailed satellite (in view) information
GSA
1Hz
list of satellites used in fix
The receiver must be set up to communicate over
RS-232 at a Baud rate of 38400
.
