A thermal calibrator for radiometers used in radioastronomy

Details A thermal calibrator for radiometers used in radioastronomy A thermal calibrator for radiometers used in radioastronomy

Feb 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973jphe....6..152f&link_type=abstract

Journal of Physics E: Scientific Instruments, Volume 6, Issue 2, pp. 152-154 (1973).

Physics

Scientific paper

The instrument can supply noise power changes over a range of frequencies up to 7 GHz. These power changes are derived by changing the temperature of a resistor which can be set and maintained at any value between 0 and 50 degrees C by a thermoelectric heat pump operated in a servoloop. When used under well-matched conditions, the instrument is believed to have an accuracy of 1%. It is rugged and simple to use.

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