140 Chapter 2
Performance Verification Tests
18. Absolute Amplitude Accuracy (Reference Settings): Agilent E4402B, E4403B, E4404B,
E4405B, E4407B, and E4408B
15.Press Peak Search (or Search).
16.Convert the marker amplitude reading from Volts to dBm using the
equation below:
Marker Amptd (dBm) ________ dBm
17.Subtract the Corrected Power Meter Reading noted in step 8 from
the Marker Amptd (dBm) recorded in step 16. Record the difference,
Absolute Amplitude Accuracy (Lin), as TR Entry 2 in the
performance verification test record:
Absolute Amplitude Accuracy (Lin) = Marker Amptd (dBm) −
Corrected Power Meter Reading (dBm)
18.If the analyzer is not equipped with Option 1DS, Press Preset and
wait for the preset routine to finish. Press System, Alignments, Auto
Align, All.
19.If the analyzer is equipped with Option 1DS, Preamplifier, proceed to
Part 3. Absolute Amplitude Accuracy, Preamp On (Option 1DS).
Part 3. Absolute Amplitude Accuracy, Preamp On (Option 1DS)
1. On the synthesized signal generator set the controls as follows:
FREQUENCY, 50 MHz
AMPLITUDE, –4 dBm
RF ON
AM OFF
FM OFF
2. Calculate the ideal buried sensor reading by subtracting the
Tracking Error recorded in step 9 of Part 1 from −30dBm, the ideal
input level to the analyzer, as indicated below:
Ideal Buried Sensor Reading = −30 dBm − Tracking Error
3. Adjust the synthesized signal generator to obtain the Ideal Buried
Sensor Reading calculated above ±0.1 dB.
4. Calculate the Corrected Power Meter Reading by adding the current
power meter reading to the Tracking Error recorded in Part 1, step 9
and record the result below:
Corrected Power Meter Reading = Power Meter Reading + Tracking
Error
Example: If the Power Meter Reading is −9.74 dBm and the Tracking
Error is −20.3 dB, the Corrected Power Meter Reading is −30.04 dBm
Corrected Power Meter Reading ________ dBm
50Ω Input Marker Amptd (dBm) =10 log10
×Mkr V2
0.05
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