HP 8920A - Res BW; Tune Freq; Tune Mode

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S:\HP892XX\USRGUIDE\manual\acpscrn.fb
Chapter 4, Adjacent Channel Power Screen
Field Descriptions
Res BW
The resolution bandwidth field selects the IF filter used when measuring the
power of the carrier and the adjacent channels.
Operating Considerations
Using a narrower bandwidth filter (300 Hz) slows the measurement, but rejects
carrier leakage and out of channel spurs. Using a wider bandwidth filter
(1 kHz) speeds measurements, but may allow unwanted spurs and carrier leakage
to be integrated into the measurement when measuring at the edges of the selected
channel bandwidth.
Tune Freq
This field sets the center frequency for the RF signal to be analyzed.
See Also
Tune Mode
field description (this page)
Tune Mode
This field selects Automatic or Manual tuning of the RF Analyzer.
Auto tuning causes the RF Analyzer to find the signal with the greatest amplitude
>-36 dBm, and to set the Tune Frequency for that signal.
Manual tuning requires the operator to set the Tune Frequency for the RF signal
to be analyzed.
Operating Considerations
Changing the Tune Mode also changes the RF frequency display. Automatic
tuning enables the
TX Frequency measurement. Manual tuning enables the
TX Freq Error measurement.