Microwave Preselector - Agilent Technologies PSA Series User And Programming Manual

Instrument Functions: A - L
Input/Output
2.8.4.1 Spectrum Analyzer
Switches the IF path to the spectrum analyzer path that is used for normal operation.
Key Path:
Input/Output
History: Added in revision A.06.00.
Remote Command:
See "321.4 MHz IF Out Opt" on page
2.8.4.2 Dnconverter WBIF
Configures the IF path for improved frequency response at the 321.4 MHz IF Out
connector on the rear of the instrument. While this 321.4 MHz IF path is selected, the
signal is routed away from the normal spectrum analyzer signal path. This disables
measurements, so no signal is displayed on the display.
Key Path:
Input/Output
History: Added in revision A.06.00.
Remote Command:
See "321.4 MHz IF Out Opt" on page

2.8.5 Microwave Preselector

For Option 123 only. This switches the 321.4 MHz IF path between the normal 3 to 26.5
GHz preselected mixer and an optional unpreselected high band mixer. The preselected
path is the normal path for the analyser.
The first mixer can be overloaded if a large out-of-span signal is
WARNING
present at the input. When the preselector is bypassed this signal
passes through to the mixer causing an overload. The instrument
cannot detect this condition, so no overload error message is
displayed.
Key Path:
Input/Output
Dependencies/
Couplings: The functionality is not available
if the start frequency is in band zero (<2.85 GHz).
•
when using a
•
and Noise Figure.
If the preselector state is off, then the instrument start frequency is
limited to frequencies ≥ 3.05 GHz.
154
,
321.4 MHz IF Out Opt
153.
,
321.4 MHz IF Out Opt
153.
other then Spectrum Analysis, such as Phase Noise
Mode
Chapter 2