Agilent Technologies 4395A, Руководство по обслуживанию

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T able 1-3. Calibration Data Required for 8496G Opt. 001 and H60
F requency A tten uation Uncertain t y
50 MHz 0 dB 0.0037 dB
10 dB 0.0042 dB
20 dB 0.0046 dB
30 dB 0.0052 dB
40 dB 0.0079 dB
50 dB 0.0125 dB
60 dB 0.0144 dB
70 dB 0.0327 dB
80 dB 0.0532 dB
90 dB 0.0543 dB
100 dB 0.0850 dB
The calibration uncertain t y is the primary source of measuremen t error in p erformance tests.
The measuremen t uncertain ties listed in the p erformance test record of Chapter 4 are v alid
only when the uncertain t y of the step attenuation data satises that given in the third column
of T able 1-3.
The calibration of step attenuators, 8496G Opt. 001 and H60, are a v ailable at Agilent
T ec hnologies. F or information ab out the calibration and the a v ailable uncertain ties, con tact
y our nearest Agilent T ec hnologies service cen ter.
Note
The 8496G Opt. 001 and H60 programmable step attenuator has four
attenuation segmen ts, 10 dB segmen t, 20 dB segmen t, and t w o 40 dB
segmen ts. Eac h attenuation from 10 dB to 70 dB is obtained b y com bining
these segmen ts. The attenuations from 40 dB to 70 dB dep end on the 40 dB
segmen t that is used.
When setting the step attenuator for the calibration, sp ecify one of the 40
dB segmen ts for attenuations from 40 dB to 70 dB. Then use the sp ecied
segmen t in the tests.
General Information 1-7