SGPropertyNode_ptr to_flag_node;
SGPropertyNode_ptr from_flag_node;
SGPropertyNode_ptr inrange_node;
+ SGPropertyNode_ptr signal_quality_norm_node;
SGPropertyNode_ptr cdi_deflection_node;
SGPropertyNode_ptr cdi_xtrack_error_node;
SGPropertyNode_ptr cdi_xtrack_hdg_err_node;
SGPropertyNode_ptr gps_cdi_deflection_node;
SGPropertyNode_ptr gps_to_flag_node;
SGPropertyNode_ptr gps_from_flag_node;
+ SGPropertyNode_ptr gps_has_gs_node;
// internal (private) values