Agilent Technologies 4294A, Руководство по эксплуатации

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Chapter 3 45
Front/Rear Panel and LCD Display
Front Panel
3
. F
ront/
R
ear
P
ane
l a
nd
L
CD Di
sp
la
y
NOTE
As a typographic convention to distinguish between hardkeys and softkeys, this
manual uses a pair of brackets (
[ ]
) to enclose hardkey labels while showing softkey
labels without enclosing them.
[Hardkey]
key Indicates a hardkey labeled “Hardkey.”
Softkey
key Indicates a softkey labeled “Softkey.”
Note that descriptive text in this manual sometimes only indicates key labels without
following them by the word “key.”
When several keys are separated by a hyphen (-), press them in the sequence indicated. For
example, you should use the keystroke sequence
[Scale Ref]
-
AUTO SCALE
to enable
automatic scale adjustment. As an exception, numeric keys may appear without a hyphen
in between; for example, the keystroke sequence to enter a value of 100 may be expressed
as
[1][0][0]
.
1. ACTIVE TRACE block
With the Agilent 4294A, you can view two traces (waveforms) for each sweep cycle: Trace
A and Trace B. Some parameters, such as the sweep range, apply to both traces, while
other parameters can be separately configured for each trace. You can use the
[A]
or
[B]
key
in the Active Trace block to choose between Traces A and B. Once you have activated
either trace, you can configure measurement conditions and perform analysis on that
“active” trace. When you set measurement conditions, be aware of which trace is currently
active.
2. MEASUREMENT Block
This block provides keys for configuring all measurement conditions except the test signal
settings.
[A]
key Activates Trace A so you can set conditions and perform
analysis on Trace A.
[B]
key Activates Trace B so you can set conditions and perform
analysis on Trace B.
[Meas]
key Provides access to a softkey menu that lets you select
measurement parameters.
[Format]
key Provides access to softkey menus that let you select the
data display format (graph axis format) and set up the phase
display unit and phase expansion feature.
[Display]
key Provides access to softkey menus that let you configure
general display options (except the display format and scale
setting) and perform equivalent circuit analysis.
[Scale Ref]
key Provides access to a softkey menu that lets you configure
graph scale settings.