Keysight N9915-90020 User’s Guide 157
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)FUTURE
SA Mode Settings
How to Enable Channel selection
1. Press Freq/Dist
> More
2. Then Unit Freq Chan
With Unit =
Chan, Channel Direction becomes available and CF Step alters to
Channel Step.
How to change the Channel Number of the Measurement
With Unit = Chan the FieldFox will NOT allow you to specify channels outside
of the selected Radio Standard.
—Press Freq/Dist
— Then choose from the following:
—Center Channel Places the center frequency of the specified channel
in the middle of the X-axis.
—Start Channel Places the lowest frequency of the specified channel at
the beginning of the X-axis.
—Stop Channel Places the highest frequency of the specified channel at
the end of the X-axis.
—Freq Span Changes the span of frequencies while the center frequency
remains unchanged.
—Follow each of the above settings by entering a value using the
numeric keypad or the rotary knob.
—Use the arrows to increment the channel number by an amount
specified by the Channel Step value (see below).
—Then press
Enter or Enter.
Select either Uplink or Downlink Frequencies
Press Freq/Dist then More. Press Chan Direction to toggle between Uplink
and
Downlink. If either of these selections is not available, then the selected
Radio Standard does not contain those frequencies. In that case, Chan
Direction is grayed out.
Integration BW (IBW) is coupled to the Frequency Span setting. Frequency
Span is 50% wider than the IBW (e.g., if the IBW value is 1 MHz, then the
Frequency Span value is 1.5 MHz).
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