Champion HC3 Quick Start Manual page 24

Step 7
The antenna shown in this configuration is the Champion
AS1-FS full spectrum external antenna on a 2 meter prism
pole.
Step 8
Note that all baud rates have been set to 115200. Selecting
the green check mark on the base continues through the
normal Base Configuration. On the rover, it completes the
setup process and progresses to "RTK L1 Fixed" as shown
on the Monitor/Skyplot screen.
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