===Technical Documentation of the C/X-Band Receiver 4 - 9.3 GHz (S45mm)=== ||Type|HEMT cooled| || ||Channels|8 |upper/lower broad- and narrowband of 2 polarizations|| ||Receiver Noise|<10K | || ||Frequency range|4 GHz - 9.3 GHz | 4 - 8 GHz (C-Band) / 5.3 - 9.3 GHz (X-Band)|| ||Polarization|2x linear | single horn|| ||Calibration|Noise diode|5 MHz phase cal || ||IF lower band|0 - 4 GHz |0 - 2.5 GHz| 1,8 - 2.0 GHz|| ||IF upper band| |0 -2.5 GHZ| 1,8 - 2.0 GHz|| ||//Synthesizer frequency for fsky at center of://|//4 GHz IF//|//2.5 GHz IF//|//200 MHz IF//|| ||Highband (Ch.1, 2, 5, 6): |fsynth.4 = 8.0/9.3GHz|fsynth.4 = 8.0/9.3GHz|fsynth.5 = fsky + 1.9GHz|| ||Lowband (Ch.3, 4, 7, 8): | |fsynth.3 = 4.0/5.3GHz|fsynth.1/2 = fsky - 1.9GHz (1: fsky = 4 - 6 GHz / 2: fsky = 5.9 - 7.3 GHz|| {{:electronics:rx:techinfo:c-x_band_block_v001.jpg?1500|}} Simplified {{:electronics:rx:techinfo:c-x_band_block_v100.pdf|Block Diagram}} of the complete receiver, (CK on 30.1.2018) {{:electronics:rx:techinfo:c-x_band_rx_if-box.pdf|Block Diagram}} of the IF conversions, (CK on 30.1.2018) {{:electronics:rx:techinfo:c-x_band_rx_rauschgenerator.pdf|Block Diagram}} of the calibration unit, (CK on 30.1.2018) {{:electronics:rx:techinfo:c-x_band_rx_total_power_detector.pdf|Block Diagram}} of the total power detector unit, (CK on 30.1.2018)