====== Technical Documentation of the 22mm  Receiver 12.1 - 13.6 GHzz (P22mm) ======

|Type|HEMT ,Cooled|
|Channels|2|
|Receiver Noise Temperature|40-50 K|
|Frequency Range|12.1 - 13.6 GHz|
|Bandwidth RF-Filters|12.1 - 12.28 GHz / 12.9 - 13.6 GHz|
|Polarization|LHC and RHC|
|Calibration|Noise Diode |
|feed|Prime Focus Horn|
|1. Oscillator|ULO1 (x8) 1.331 - 1.418 GHz| 
|1. IF|1.72 - 2.48 GHz|
|2. Oscillator|ULO2 (x3) 2.1 GHz|
|2. IF|100 - 200 MHz|

====== Block Diagram ======
{{:electronics:rx:techinfo:p22mm_block_diagram.jpg|}}

**Recievers Detail Blockdiagram** {{:electronics:rx:techinfo:22mm_receiver.pdf|}}
====== Charts ======
|Sky Frequency|	Tcal Channel A| 	Tcal Channel B|
|13.04GHz| 	21.0K / 1.8K |	22.7K / 1.9K|
|13.25GHz| 	20.8K / 12.1K| 	22.3K / 2.1K|
|13.45GHz| 	17.7K / 1.4K |	20.1K / 1.9K|


====== Comments ======
>The 13.25 GHz system is a total power receiver with cooled HEMT preamplifiers. It is mainly constructed for spectroscopy measurements. There is no polarimeter available.
The broadband IF output is prepared to be connected via optical link. The V/F-Converters at the broadband detectors have a maximum frequency of 5 MHz to give enough resolution for pulsar work.
This system is part of the Primary Focus Multi Frequency Box #2 (PM 2).