2Performance Tests
20 E4416A/E4417A Power Meters Service Guide
6 Set the filter length:
• Press .
• Highlight the Filter parameter using the up/down arrow keys.
• Scroll through the Filter values by pressing . Select a value of
MAN.
• Highlight the filter length using the forward arrow key. Press .
The Filter Length pop- up window is displayed. Set the filter length to
512.
• Press .
7 Zero the power meter:
Press
, . Wait approximately 10 seconds for the
wait symbol to disappear.
8 Wait 30 seconds then verify that the power meter’s reading is within
±0.05 μW. Record the reading.
Ta bl e 2 - 1 Zero Test Results
When switching the range calibrator to STANDBY, allow enough time for the range
calibrator to settle to its zero value before attempting to zero the power meter. This
settling would appear on the power meter display as downward drift. When the drift
has reached minimum, (typically less than 60 seconds), the range calibrator is settled.
Min Channel A Actual
Results
Channel B Actual
Results (E4417A Only)
Max
–76.40 nW _________________ _________________ +76.40 nW
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