User's Manual

Chapter 2 291
Performance Verification Tests
33. Gain Compression: Agilent E4401B, E4402B, E4403B, and E4411B
directional bridge connected to the power sensor.
75
Ω Input only: Use the 75 Ω power sensor with the mechanical
adapter. The power measured at the output of the 50
Ω directional
bridge by the 75
Ω power sensor is the equivalent power “seen” by the
75
Ω analyzer.
Figure 2-51 Gain Compression Test Setup
CAUTION Use only 75 Ω cables, connectors, or adapters on instruments with 75 Ω
connectors, or damage to the connectors will occur.
3. Set the synthesized signal generator controls as follows:
FREQUENCY, 50 MHz
AMPLITUDE
, –100 dBm
4. On the synthesized sweeper press INSTRUMENT PRESET, then set the
controls as follows:
CW, 53 MHz
POWER LEVEL
, –3 dBm
5. Enter the power sensor calibration factor for the synthesizer
frequency into the power meter.
6. Adjust the synthesized sweeper power level setting until the power
meter reading is the same as indicated in Table 2-77.