Agilent Technologies E1401-90493 Manuale Utente Pagina 50

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50 Chapter 2
Performance Verification Tests
3. Frequency Readout and Marker Frequency Count Accuracy: Agilent E4401B, E4402B,
E4403B, and E4411B
displayed. Set the analyzer to measure the marker count accuracy by
pressing the following keys:
FREQUENCY, 1.490 GHz (Agilent E4401B and E4411B)
FREQUENCY, 1.5 GHz (Agilent E4402B and E4403B)
SPAN, 10 MHz
BW/Avg
, Res BW, 100 kHz (Man)
Freq Count, Marker Count (On)
Resolution (Man), 1 Hz
2. Press Peak Search (or Search), then wait for a count be taken (it may
take several seconds).
3. Record the counter (Cntr1) frequency reading as Test Record entry 4
of the performance verification test record.
4. On the analyzer, press
SPAN, 1 MHz.
5. Press
Peak Search (or Search), then wait for a count be taken (it may
take several seconds).
6. Record the counter (Cntr1) frequency reading as Test Record entry 5
of the performance verification test record.
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