Keywords: pdbi-amp-cal

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## Results

Using the parameters used previously, and = 0.5, = 0.6, and = 100 K, we can make the following comparison of the variations of

Item |  |  |  |  |
Typical Error | 2 K | 10 K | 0.01 | 0.02 | 0.02
Induced variation (in %) | 0.7 | 0.3 | 1.3 | 2.0 | -0.5

This shows that the maximum effect is from if this method is used, from otherwise. It also indicates that the ``reduced chopper'' calibration is not a good technique, but a switchable attenuator should be used instead.