26 Installation Guide
E444xAU Options H20, H25 and H70 E444xAU IF Output Options
Performance Tests and Adjustments
2. Press [Trace Max Hold] and wait until the response of the 321.4 MHz Output is
displayed on the test spectrum analyzer.
3. Press [Peak Search] on the spectrum analyzer to place a marker on the peak of the
response.
4. Press [Marker Delta] on the test spectrum analyzer and adjust the delta marker down
the skirt of the response to the 3 dB point.
5. Press [Marker Delta] again and adjust the marker to the other side of the peak response
and down the other skirt until the marker amplitude reads 0 dB. (The marker delta
frequency is the 3 dB bandwidth of the 321.4 MHz Output).
6. Refer to the “Nominal Characteristics” on page 18 to verify the results of your tests.
7. Connect the test spectrum analyzer to the Option IF Output port on the rear panel of
the PSA.
8. Repeat Steps 3 through 6 to measure the bandwidth of the Option IF Output.
NOTE If the flatness slopes on the IF Output, connect a 50 Ohm load to the
321.4 MHz IF Output port.
This concludes the Performance Verification of the E444xAU Option in the PSA instrument.
Table 17 Synthesized Sweeper Setup
Parameter Settings
Frequency:
Start Freq
Stop Freq
950 MHz
1050 MHz
Function CW or Sine
Level –10 dBm
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