An APT Signal Simulator

Warren W. Knapp Division of Atmospheric Sciences, New York State College of Agriculture and Life Sciences at Cornell University, Ithaca 14853

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Paul S. Sanik Division of Atmospheric Sciences, New York State College of Agriculture and Life Sciences at Cornell University, Ithaca 14853

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Abstract

An inexpensive device designed to simulate video signals produced by the scanning radiometer system used on current NOAA series satellites is described. The simulator features independent control of both visible and infrared channel video levels during periods corresponding to the earth scan portions of each scan line. The known and adjustable signal levels provided by this simulator unit simplify the tasks of calibration, adjustment and servicing APT display systems.

Abstract

An inexpensive device designed to simulate video signals produced by the scanning radiometer system used on current NOAA series satellites is described. The simulator features independent control of both visible and infrared channel video levels during periods corresponding to the earth scan portions of each scan line. The known and adjustable signal levels provided by this simulator unit simplify the tasks of calibration, adjustment and servicing APT display systems.

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