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electronics:rx:techinfo:documentation_p200mm
Table of Contents
Technical Documentation of the 18/21 cm Receiver 1.3 - 1.7 GHz (P200mm)
| Type | HEMT cooled | |
| Channels | 2 | |
| Receiver Noise Temprature | 10 K | |
| Feed | Prime Focus Horn | |
| Frequency Range | 1.2 - 1.8 GHz | |
| Bandwidth available | Narrow Band on Coax IF | Broad Band on Optical IF |
| Bandwidth RF-Filters | 1290 - 1430 MHz and 1580 - 1725 MHz | 1.2 - 1.8 GHz and 1.5 - 1.8 GHz |
| Calibration | Noise diode | Noise diode |
| Polarization | LHC and RHC | LHC and RHC |
| Phaseshifter | in LO-system | no |
| 1.IF | 80 - 220 MHz | No down conversion |
| Local Oscillator | ULO1 or LO 1.2 - 1.8 GHz | No |
Block Diagram
Simplified Block Diagram of p200mm_receiver.pdf the complete receiver, (ZMK on 03.06.2019)
Comments
The 1.2-1.8 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).
electronics/rx/techinfo/documentation_p200mm.txt · Last modified: 2019/12/13 12:03 by ubach
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