22 Installation Guide
E444xAU Options H20, H25 and H70 E444xAU IF Output Options
Performance Tests and Adjustments
Option IF Output Amplitude Test Procedure
This test verifies that the Option IF Output meets its amplitude accuracy specification. In
this test, the source is connected to the RF Input and a spectrum analyzer is connected to
the Option H70 Output.
Follow the steps below to prepare for the amplitude verification of the
Option IF Output on the rear of the PSA.
1. Preset the PSA DUT and all the test equipment.
2. Run Align All Now on the PSA. Press: [System] > Alignments < Align All Now.
3. Initialize the test equipment parameters as follows:
4. Zero and calibrate the power sensor.
5. Connect the power sensor/power meter to the end of the Type-N cable that is connected
to the source. Use an N (f) to N (f) adapter between the power sensor and the cable.
6. Adjust the source amplitude for a power meter reading of –10 dBm.
7. Disconnect the power senor from the cable and connect the cable to the PSA RF Input.
NOTE If the PSA has Option BAB (APC 3.5 mm input connector) an APC 3.5 mm (f)
to N (f) adapter is required between the PSA and the Type-N cable.
Table 10 E444xA PSA Spectrum Analyzer Setup
Parameter Setting
Frequency:
Center
Span
1 GHz
0 Hz
Resolution Bandwidth 1 MHz
Attenuation Choose 0 dB since this
setting will determine what
the IF output level is, with
respect to the input signal.
Frequency Reference Internal
Table 11 Synthesized Sweeper Setup
Parameter Settings
Frequency 1 GHz
Function CW or Sine
Level –10 dBm
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