Fluke 96000 Series Service Manual page 66

96000 Series
Service Manual
The recommended Power Meter has Power Sensor calibration
factors stored internally in the sensor. Setting the input frequency in
the Power Meter automatically selects the appropriate cal factor for
the measurement. However, the Power Sensor may also be
accompanied by a table of calibration factors which must be applied
externally.
The diode-based Power Sensor may exhibit frequency dependent
linearity errors, and additional corrections for these errors must also
be applied.
21. Let the Power Meter reading settle. Record the measured level in dBm as P
The Power Meter autorange boundary may coincide with a
measurement point. To avoid unwanted Power Meter autoranging,
manually lock the Power Meter range once the 100 kHz reading is
obtained and maintain the Power Meter range lock for all
subsequent frequencies at this amplitude.
22. Set the UUT frequency to the first test frequency listed in Table 3-12.
23. Enter the measurement frequency into the Power Meter and let the Power
24. Check that the value of P
The insertion loss of the 50 Ω Type-N female-to-female adapter must
be taken into account at each measurement frequency.
25. Set the UUT to the next frequency point listed at this amplitude in Table 3-12,
26. Set the UUT to 100 kHz at the next amplitude listed in Table 3-12, and
27. Set the UUT output to STBY.
3-24
for use later in this procedure.
Meter reading settle. Record the measured level in dBm as P
UUT output P = P + (P
out 1
and repeat steps 14 through 15.
repeat steps 11 through 16. When the test amplitude is -37 dBm at each
frequency record the value of P
used later in this procedure.
Note
Note
Note
– P ).
3 2
is within the tolerance shown in Table 3-12.
out
Note
at -37 dBm as P
out
. Calculate the
3
. These values will be
-37
2