58452 VXIbus Universal Power Meter
4-4 Publication 21555, Rev. E, September 2002
where:
P
RF
= calibrator output power reference level
V
COMP
= previously recorded value in Step 9
V
1
= previously recorded value in Step 8
V
0
= previously recorded value in Step 6
R = 200W (assuming HP478A-H75 mount)
Calibration Factor = value for the thermistor mount at 50MHz (traceable to NIST)
12. Verify that the P
CAL
is within the following limits:
1mW ±0.019mW (0.981 to 1.019mW)
For record purposes, the measured value of P
CAL
can be entered on the Performance Verification Test
Data Sheet at the end of this chapter.
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