| Type | HEMT, cooled |
|---|---|
| Channels | 2 |
| Receiver Noise Temperature | 10 K |
| Frequency Range | 1.290 - 1.725 GHz |
| Bandwidth RF-Filters (fixed) | 1.2 - 1.8 GHz |
| Bandwidth RF-Filters (selectable) | 1290 - 1430 MHz 1580 - 1725 MHz |
| Polarization | LHC and RHC |
| Calibration | Noise Diode VTO: yes |
| Phaseshifter | in ULO-system |
| Feed | MPIfR Prime Focus Horn |
| 1. IF | 80 - 220 MHz |
| 1. Oscillator | ULO1 or LO 1.2 - 1.8 GHz |
The 1.3-1.7 GHz system is a prime focus receiver with cooled HEMT amplifiers. The system is built to observe circular polarization, the transducer comprises a cooled linear transducer (design NRAO) followed by a cooled hybrid.
This system is part of Primary Focus Multi Frequency Box #1 (PM 1).