Fluke 96000 Series Service Manual page 128

96000 Series
Service Manual
The next steps make the low frequency flatness adjustment of the 50
Ω
7. Using the blue arrow keys and rotary knob, edit the UUT Actual output until
If the AC Measurement Standard used does not read the UUT
output in dBm directly, calculate the desired value using the
following formula:
Alternatively, the UUT units selection can be changed to V rms to
display targets and adjust output values directly in rms voltage. Push

Measurements made on the 5790A 2.2 mV range (at levels below
−40 dBm) require correction for the 2.2 mV range linearity error.
8. Push Next Target.
9. Repeat steps 7 and 8 for all points requiring the use of the AC Measurement
10. Disconnect the AC Measurement Standard and feedthrough termination
The insertion loss of the 50
must be taken into account at each adjustment frequency.
11. Set the Power Meter for 0.001 dB resolution.
12. Set the UUT to OPER.
The next steps make the high-level flatness adjustment of the 50
Leveling Head using a Power Meter and sensor.
13. Enter the measurement frequency corresponding to each Target into the
4-8
Leveling Head using the AC Measurement Standard.
the AC Measurement Standard indicates the Target value stated. Push
Accept Target.
 and select the required units.
Standard (the UUT text box will indicate Use Precision AC Voltmeter). Set the
UUT to STBY.
from the Leveling Head. Connect the UUT 50 Ω Leveling Head to the input
of the 50 Ω Thermal sensor using a Type-N female-to-female adapter. See
Figure 3-6 for equipment connections.
Power Meter to enable cal factor (frequency) correction.
Note
Note

2
V

( )
50
Ω =
dBm 50 10 log

−3
 10

Note
Note
Ω
Type-N female-to-female adapter
Note





Ω