Power Reference Level Adjustment; Equipment; Test Method - Keysight N1913B EPM Series Service Manual

Power Reference Level Adjustment

Equipment

As per the test equipment list for the power reference level
performance test.

Test method

1 Set: Coarse = 834, Fine = 550
2 Measure power ref. level as per the performance test:
3 Repeat step 2 until the result crosses the 1 mW boundary (in either direction)
4 Measure power ref. level as per the performance test:
5 Repeat step 4 until the result crosses the 1 mW boundary (in either direction)
6 The adjustment is completed
– This adjustment can be performed manually via the commands:
NOTE
– COARSE and FINE values are valid in the range of 0 to 1023
– If adjustment is not possible, then a fault may be present in the DUT (see
Keysight N1913B/N1914B EPM Series Power Meters Service Guide
a If the result is > 1 mW, then increment COARSE by 1
b If the result is < 1 mW, then decrement COARSE by 1
a If the result is > 1 mW, then decrement FINE by 1
a If the result is < 1 mW, then increment FINE by 1
SERV:CAL:ADJ:COUR <value>
SERV:CAL:ADJ:COUR?
SERV:CAL:ADJ:FINE <value>
SERV:CAL:ADJ:FINE?
(Refer to the Keysight N1913B/N1914B EPM Series Power Meters
Programming Guide for further details on the use of these commands.)
Chapter 5, "Troubleshooting Guide").
Adjustments 3
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