96
Chapter 4
Making Measurements
Making the Spectrum (Frequency Domain) Measurement
NOTE
For the widest spans the I/Q window becomes just “ADC time domain
samples”, because the I/Q down-conversion is no longer in effect.
Using the Markers
The
Marker
front-panel key accesses the menu to configure the markers.
If you want to use the marker function in the I/Q window, press
View/Trace
,
I/Q Waveform
,
Marker
,
Trace
,
IQ Waveform
.
•
Select 1 2 3 4
- Allows you to activate up to four markers with the
corresponding numbers, respectively. The selected number is
underlined and its function is defined by pressing the
Function
key.
The default is 1.
•
Normal
- Allows you to activate the selected marker to read the
frequency and amplitude of the marker position on the spectrum
trace, for example, which is controlled by the
RPG
knob.
•
Delta
- Allows you to read the differences in frequencies and
amplitudes between the selected marker and the next.
•
Function Off
- Allows you to define the selected marker function to be
Band Power
,
Noise
, or
Off
. The default is
Off
. If set to
Band Power
, you
need to select
Delta
.
•
Trace Spectrum
- Allows you to place the selected marker on the
Spectrum
,
Spectrum Avg
, or
I/Q Waveform
trace. The default is
Spectrum
.
•
Off
- Allows you to turn off the selected marker.
•
Shape Diamond
- Allows you to access the menu to define the selected
marker shape to be a
Diamond
,
Line
,
Square
, or
Cross
. The default is
a
Diamond
.
•
Marker All Off
- Allows you to turn off all of the markers.
The front panel
Search
key performs a peak search when pressed. A
marker will automatically be activated at the highest peak.
Band Power
A band power measurement using the markers calculates the average
power between two adjustable markers. To make a band power
measurement:
Press the
Marker
key.
Press
Trace
,
Spectrum
to activate a marker on the instantaneous
spectrum signal. Press the
Spectrum Avg
key to activate a marker on
the average spectrum trace.
Press
Function, Band Power
.
Содержание E4406A
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Страница 10: ...10 Contents ...
Страница 138: ...138 Chapter4 Making Measurements Front Panel Test ...
Страница 139: ...139 5 Functional Testing ...
Страница 214: ...214 Chapter6 If You Have a Problem Returning Your Instrument to Agilent Technologies ...
Страница 215: ...Chapter 6 215 If You Have a Problem Repair Tag Goes Here Remove This Page Repair Tag Goes Here Remove This Page ...
Страница 216: ...216 Chapter6 If You Have a Problem Repair Tag Goes Here Remove This Page ...
Страница 217: ...217 7 Options and Accessories ...
Страница 226: ...226 Chapter7 Options and Accessories Accessories ...