This receiver uses a cooled, HFET amplifier. It has one beam, with dual circular polarizations. The feed is a corrugated horn with cooled polarizer producing circular polarizations. The internal switching mode is frequency switching. 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.