Frequency Counter At Marker - Keysight N9912A User Manual

SA (Spectrum Analyzer) Mode
SA Mode Settings
— Then
— Then
— Then
— Then choose from the following:

Frequency Counter at Marker

Available in SA Mode ONLY. Use any existing marker to make highly-accurate
frequency counter readings. For highest accuracy, lock the FieldFox to a stable
external frequency reference. Learn how in
page 15
When Frequency Counter is ON, the FieldFox uses background sweeps to
zoom on the signal, measure the signal peak with 1 Hz resolution, and display
the frequency of the signal peak in the marker annotation area. The marker
does not move to the signal peak.
When Freq Counter is ON, measurement sweeps are considerably slower.
How to use Frequency Counter
— Press Marker.
— Press Normal, Delta, or Peak, or select an existing marker to use as a
frequency counter.
— Locate the marker somewhere on a CW signal. It does NOT have to be on
the peak.
— Then More.
— Then
— With Freq Count ON, you can scroll through the existing markers that are
located on a discrete CW signal, and read the frequency of the signal peak.
However, each frequency count update requires another sweep. If the
FieldFox is in HOLD, press
8- 34
Marker Function.
Band/Int Power.
Band (or Interval) Span.
— Auto Measures power over 5% of the displayed span, or ½ graticules.
The Band Span is automatically updated to remain at 5% when you
change the frequency span.
— Man Enter a frequency or time value using the
rotary knob, then press Enter. Or enter a value using the numeric
keypad and select a frequency or time suffix. The Band Span remains
at the frequency or time value that you set as the span changes.
.
Freq Count ON.
"Frequency Reference Source" on
Single to update the frequency count results.
Keysight N9912-90001 User's Guide
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