Research Concepts RC2000C - Manual (Page 17)

RC2000C Az/El Tracking Antenna Controller Chapter 2 Basic Function Description 9
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2. the polarity of the AutoPol input must be specified (from CONFIG mode), and
3. the AutoPol feature must be enabled (also from CONFIG mode).
When the polarity of the AutoPol input is specified, the user is informing the controller that a given
AutoPol input level (high or low) corresponds to vertical polarization. Configuring the AutoPol system
during installation is covered in more detail in chapter 3, and the CONFIG mode prompts which enable
and specify the polarity of the AutoPol input are described in Chapter 4 in the CONFIG mode section.