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Chapter 4 Calibration and Adjustment
-24 dB Range Flatness Adjustment
4
-24 dB Range Flatness Adjustment
1 Connect a precision AC Voltmeter to measure the output amplitude of
channel 1 as shown below. Connect the BNC cable to the Wide Band
input of the Fluke 5790A.
2 Use the precision AC Voltmeter to measure the output amplitude for
each of the setups in the table below.
* Constants are stored after completing this setup.
Nominal Signal
Setup Frequency Amplitude
38* 1 kHz 0.192 Vrms Flatness for -24 dB range
39* 100 kHz 0.192 Vrms Flatness for -24 dB range
40* 1 MHz 0.192 Vrms Flatness for -24 dB range
41* 5 MHz 0.192 Vrms Flatness for -24 dB range
42* 10 MHz 0.192 Vrms Flatness for -24 dB range
43* 20 MHz 0.192 Vrms Flatness for -24 dB range
44* 25 MHz 0.192 Vrms Flatness for -24 dB range
45* 30 MHz 0.192 Vrms Flatness for -24 dB range
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