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electronics:rx:techinfo:documentation_p10mm
This is an old revision of the document!
Table of Contents
Technical Documentation of the 1cm Receiver 27 - 38 GHz (P10mm)
| Type | HEMT cooled |
| Channel | 1 |
| Receiver Noise Temperature | 10-40 K |
| Bandwidth RF-Filters | See below filter combination |
| Polarization | Linear |
| Calibration | Noise Diode |
| Feed | Primary Focus Horn |
| Frequency Range | 27 - 38.7 GHz |
| 1.Local Oscillator | Multiplier 24*(ULO1= 1.22 - 1.488 GHz) |
| 1.IF | 2 - 4 GHz (Broadband) |
| 2.Local Oscillator | 4*(ULO2=937.5 MHz) |
| 2.IF | 500 - 1000 MHz |
Block Diagram
Simplified Block Diagram of p10mm_receiver.pdf, (ZMK on 15.08.2019)
Receiver Noise Temperature
Comments
This system is equipped with 3 RF-Filters to suppress mirror frequency reception. During observation, the filter and ULO settings have to be selected according to the observation frequency (see block diagram).In March 2007 the LNA was replaced by an InP-HEMT MMIC-amplifier designed for the 9mm receiver. Therefore the noise figure at low frequencies is not ideal.This system is part of the Primary Focus Multi Frequency Box #1 (PM 1).
electronics/rx/techinfo/documentation_p10mm.1576234925.txt.gz · Last modified: 2019/12/13 12:02 by ubach
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