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282 Chapter 2
Performance Verification Tests
32. Spurious Responses: Agilent E4404B, E4405B, E4407B, and E4408B
at 900 MHz is –7.05 dBm, the 900 MHz Frequency Response Error
would be –0.7 dB:
Measuring 1.55 GHz Frequency Response Error
1. On the synthesized sweeper, press the following:
CW, 1.55 GHz
POWER LEVEL, 0dBm
2. On the analyzer, press FREQUENCY, 1.55 GHz.
3. Enter the power sensor 2 GHz calibration factor into the power
meter.
4. On the analyzer, press the following:
Marker, Off
Peak Search
(or Search)
5. On the analyzer, press
Peak Search (or Search), Marker, Delta.
6. Record the power meter reading in Table 2-76 as the 1.55 GHz power
meter reading.
7. On the synthesized sweeper, press
CW, 3.1 GHz.
8. On the analyzer, press
FREQUENCY, 3.1 GHz.
9. On the analyzer, press the following:
Peak Search (or Search)
AMPLITUDE
Presel Center
10.On the analyzer, press Peak Search (or Search).
11.Adjust the synthesized sweeper power level until the marker delta
(
∆ Mkr1) amplitude reads 0 dB ±0.1 dB.
12.Enter the power sensor 3 GHz calibration factor into the power
meter.
13.Record the power meter reading in Table 2-76 as the 3.1 GHz power
meter reading.
14.On the analyzer, press
Marker, Off.
15.Subtract the power meter reading at 3.1 GHz from the power meter
reading at 1.55 GHz. Record this difference as the 1.55 GHz
Frequency Response Error in Table 2-76. For example, if the power
meter reading at 3.1 GHz is –6.05 dBm and the power meter reading
at 1.55 GHz is –7.35 dBm, the 3.1 GHz Frequency Response Error
0.70 dB 7.05 dBm 6.35 dBm–()––=–