13 cm (2.3 GHz, Secondary Focus) Receiver


Receiver Data

TypeFET uncooled
Receiver Noise Temperature80 K
Frequency Range2.2-2.3 GHz
Bandwidth RF-Filters2.2-2.3 GHz
CalibrationNoise Diode
Phase Cal: yes
FeedOffset Paraboloid
1. IF100 - 200 MHz
1. OscillatorULO2 (x3) 2.1 GHz

Block Diagram


This receiver has been constructed for use in S/X VLBI observations together with the 8.6 GHz SF receiver. The gregory reflector is illuminated by a feed/offset paraboloid built around the 8.6 GHz feed. One Phase Cal is fed into both receivers. The switch S2 (noise calibration) is operated synchronously with the switch S2 of the 8.6 GHz receiver !