| Type | HEMT; cooled |
|---|---|
| Channels | 4 |
| Receiver Noise Temperature | 50 K |
| Frequency Range | 10.5 - 10.6 GHz |
| Bandwidth RF-Filters | 10.3 - 10.6 GHz |
| Polarization | LHC and RHC |
| Calibration | Noise Diode VTO: yes |
| Broadband Polarimeter | yes |
| Feed | Secondary Focus Feed |
| 1. IF | 2.2 - 2.3 GHz |
| 1. Oscillator | 8.3 GHz internal LO, fixed |
| 2. IF | 100 - 200 MHz |
| 2. Oscillator | ULO2 2.1 GHz internal LO, fixed |
The system comprises 2 feeds, 4 channels and 2 Broadband Polarimeters. 8 data channels, 2 total
power and 2 polarization signals per feed are recorded. This total power system is being used in a
"software beamswitching" mode to observe extended sources. The feeds are mounted in a row in
azimuth direction, having a distance of approximately 3 arcmin. The frequency scheme is fix, the receiver
has built-in local oscillators that can't be changed.
The RF-filter is essential to protect against TV-satellites.
The system needs special offline reduction programmes.