The user can select IF Bandwidth of 500 or 2400 MHz. Calibration is by noise injection. This receiver has two beams on the sky with fixed separation, each with dual circular polarization. The feeds are corrugated horns with cooled polarizers producing circular polarizations. The user can select IF Bandwidth of 500 or 3500 MHz.
Calibration is by noise injection.
This receiver has four beams total, each with dual circular polarization. One pair of beams cover the 18-22.4 GHz band with fixed separation on the sky. Two other beams cover the 22-26.5 GHz frequency range, also with fixed separation on the sky. The feeds are corrugated horns with cooled polarizers producing circular polarizations. Calibration is by noise injection.