Wideband Flatness Calibration Procedure - Fluke 5730A Calibration Manual

5730A
Calibration Manual

Wideband Flatness Calibration Procedure

Do the calibration procedure and the full verification of the Product every 2 years.
For flatness calibration:
1. Touch Setup Menu>Calibration. If the ambient temperature has changed
2. Touch Run Wb Flatness Cal.
3. Connect the equipment as shown in Figure 5. Note that the wideband cable is
4. Touch Continue.
5. Push . Wideband flatness calibration starts with a 3 V output at 1 kHz.
6. Push the SET REF softkey on the 5790A when the 5790A settles to a
7. Touch Continue and the frequency changes to the next value.
8. At this point and all subsequent points for this range, adjust the Product
9. The Product wideband output changes to 1 V at 1 kHz. When it has, push the
10. Repeat steps 6 to 9 for the 1 V, 300 mV, 100 mV, 30 mV, and 10 mV ranges.
11. Touch Save to store the results and adjust the Product. If the security
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from the displayed value, update it.
connected to the 5790A directly, the termination is not used.
reading. This is the 3 V reference value from which all other frequencies will
be compared.
output adjustment knob to bring the 5790A error display to 0 and then touch
Continue on the Product. Repeat this step for each frequency through
30 MHz.
CLEAR REF WBND softkey on the 5790A.
passcode has not already been entered, the Product prompts to do so before
the results are saved. Touch Discard to remove the results from the
calibration.
5730A
Wideband
Output
Figure 5. Wideband Flatness Calibration Connections
Wideband
Output Cable
5790A
Wideband
Input
hhp313.eps