Chapter 4
103
Making Measurements
Making the Waveform (Time Domain) Measurement
Changing the View
The
View/Trace
menu keys are used to activate a view of a measurement
with preset X and Y scale parameters; this view is called a “window.”
Using the X and Y scale keys, you can then modify these parameters.
You can also activate traces, using the
Traces Display
menu key.
Windows Available for Waveform Measurements
RF Envelope
window. Select this window if you want to view
power (in dBm) vs. time. Remember that data acquisition will be
affected when you change the sweep time.
I/Q Waveform
window. Select this window to view the I and Q signal
characteristics of the current measurement in parameters of voltage
and time.
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.
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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 ...
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Страница 217: ...217 7 Options and Accessories ...
Страница 226: ...226 Chapter7 Options and Accessories Accessories ...