Up: Reduced Chopper Calibration
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This scheme has been implemented on Plateau de Bure, where the dynamic
range of the detectors is relatively small (only 2 between optimum
sensitivity and saturation). The only change from the standard equations
presented before is the introduction of the ``beam filling factor'' or
``calibration efficiency'' in the output on the chopper (from Eq.
Algebra similar to that already exposed yields
just correcting by an additional scaling factor.
In TREC mode, the sky emission is derived by
and in AUTO mode, the receiver temperature may be derived by