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Requirements
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183GHz Water Vapour Radiometers
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Status of current 183
Design Considerations for the ALMA water vapour monitors
Requirements
Basic technical approach
Mixer or HFET?
Cooled or uncooled?
SIS
Cooled Schottky
Form of switching
Form of backend
Local Oscillator
Beam Offsets
Al Wootten
2000-04-04
