This documentation describes the idl defined control interface to the Carma Wideband and Spectral-line Downconverter Subsystems.

The interface consists of the following:
carma::downconverter::System - the global downconverter system access DO.
carma::downconverter::DownconverterControl - Downconverter control DO.
carma::downconverter::QuadModControl - Quadrature Modulator control DO.
carma::downconverter::LoMonitorControl - Lo Monitor control DO.
carma::downconverter::NoiseSourceControl - Noise Source control DO.
carma::downconverter::BlockDownconverterControl - Spectral system only.