8003 Precision Scalar Analyzer
1-12 Manual 20791, Rev. C, June 2001
Zeroing Accuracy
(CW Mode, Averaging Factor = 32):
Zero Set: ±50 pW
Zero Drift: Typically ±200 pW in 1 hour at constant temperature after a 24-hour
warmup.
(Swept Mode, Averaging Factor = 32):
Zero Set: ±50 pW (AC Detection)
±800 pW (DC Detection)
Zero Drift: Typically 2 nW (DC Detection) in 1 hour at constant temperature after
a 24-hour warmup. Zero Drift not applicable in AC detection.
Noise Uncertainty
Typically <50 pW, at constant temperature, measured over a 1 minute interval, two standard
deviations.
Cal Factor Correction
Manual or automatic correction to power readings to compensate for frequency response variations of
the power sensors and bridges.
Manual: Cal Factor, Cal Frequency, Off
Auto: Sweeper
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