Agilent Technologies E7401A User Manual

148 Chapter 2
Front-Panel Key Reference
MEASURE
MEASURE
Access a menu of keys which are designed to assist in making EMI
measurements.
These keys include:
Tune, Marker Normal, Marker to List, Meas at Marker,
Meas to List, Freq Scan, Signal List, and Auto-measure.
Tune Displays the center frequency. Use the step keys to change the value up
or down, the numeric keypad to enter a specific center frequency, or the
knob to fine tune the value in single increments.
If Center Frequency Step is set to auto and Span is set to zero, the
increment is set to the Resolution Bandwidth value.
If Center Frequency Step is set to auto and Span is set to a value
greater than zero, the increment is set to the Span value divided by
ten.
If Center Frequency Step is set to manual, the increment is set to
the Center Frequency Step value you have entered.
Key access:
MEASURE.
Marker Normal Activates a single frequency marker at the center frequency on the
active trace if an on-screen marker is not displayed. If there is an
on-screen marker before the marker normal function is pressed, the
existing marker is kept active. Use the step keys, numeric keypad, or
knob to position the marker. The step keys move the marker next peak
left or next peak right. The frequency and amplitude of the marker is
indicated in the active function block and the upper right hand corner of
the screen. The marker stays on the trace unless a “marker to” function
is selected. Pressing marker normal turns off the marker delta function.
Key Access:
MEASURE.
Marker to List Adds the frequency and amplitude identified with the current marker
to the signal display list. The frequency and amplitude pair are known
as an element. New elements are added to the end of the signal list,
Signal Added To List appears at the bottom of the screen.
Key Access:
MEASURE
Meas at Marker
Makes a measurement using specified detectors. The Measure at
Marker function performs a zoom to zero span at the marker frequency.
The signal is then ranged to the top of the screen using the dwell time
specified in range dwell. and a sweep using the dwell time associated
with each of the selected detectors (peak, quasi-peak, or average) is
performed. If there is no marker on the screen then one is turned on
and put on the highest peak on the screen. As part of the zoom down
process, the signal is centered on the screen.

Agilent Technologies E7401A Specifications

General

Brand	Agilent Technologies
Model	E7401A
Category	Measuring Instruments
Language	English