336 Chapter 2
Performance Verification Tests
41. Tracking Generator Absolute Amplitude and Vernier Accuracy: Agilent E4401B and
E4411B (Option 1DN or 1DQ)
Source, Amplitude (On), 42.76 dBmV (Option 1DQ)
Source, Attenuation, 0 dB
Single
2. Zero and calibrate the power meter and power sensor in log mode
(power reads out in dBm), as described in the power meter operation
manual. Enter the 50 MHz Cal Factor of the power sensor into the
power meter.
3. Connect the 50 Ω power sensor to the RF OUT as shown in Figure
2-59.
Figure 2-59 Absolute Amplitude, Vernier, and Power Sweep Accuracy Test
Setup
Option 1DQ: Connect the 75 Ω power sensor to the RF OUT 75 Ω as
shown in Figure 2-59.
4. Read the power level displayed on the power meter and record the
result as Test Record entry 1 of the performance verification test
record as the Absolute Amplitude Accuracy.
Absolute Amplitude Accuracy at 50 MHz = ___________dB
Option 1DQ: Add 6 dB to the power level displayed on the power
meter and record the result as Test Record entry 1 of the performance
verification test record as the Absolute Amplitude Accuracy.
5. Set the power meter to dB relative mode as described in the power
meter operation manual so that the readout is in power level relative
to the power level at 50 MHz (press Rel/Offset, Rel).
6. Set the source amplitude to the settings indicated in Table 2-92.
Option 1DQ: Use the source amplitude settings for Option 1DQ
analyzers.
7. Press Single on the analyzer. At each setting, record the power level
displayed on the power meter as Measured Power Level in Table
2-92.
8. Calculate the Vernier Accuracy by subtracting the Source Vernier