Agilent Technologies E1401-90493

130 Chapter 2

Performance Verification Tests

17. Absolute Amplitude Accuracy (Reference Settings): Agilent E4401B and E4411B

equipped with Option 1DS, Preamplifier.

Part 1. Splitter/Attenuator Characterization

Figure 2-17 Power Splitter/Attenuator Characterization Setup

1. Refer to Figure 2-17. Connect one RF power sensor to Channel A of

the power meter. This will be the “reference” sensor. Connect the

other RF power sensor to Channel B of the power meter. This will be

the “buried” sensor.

75Ω Inputs, Opt 1DP: Connect the 75Ω power sensor to Channel A of

the power meter. This will be the “reference” sensor.

2. Zero and calibrate both power sensors.

3. On the power meter, set the Channel A calibration factor to the

reference sensor’s reference calibration factor.

4. On the power meter, set the Channel B calibration factor to 100%.

Do not change this calibration factor during this test.

5. Connect the equipment as shown in Figure 2-17, “Power

Splitter/Attenuator Characterization Setup,”. Use the 20 dB fixed

attenuator for 50Ω analyzers. Use the 10 dB fixed attenuator and

the minimum loss pad for 75Ω analyzers. Note that the reference

sensor connects to either the fixed attenuator (50Ω analyzers) or the

minimum loss pad (75Ω analyzers).

6. Set the synthesized signal generator frequency to 50 MHz and

amplitude to +12 dBm