Agilent Technologies 54503A User's Guide Page 203

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Chapter 4 203
Key Function Descriptions
Key Function Tables
TRIG POL POS NEG TRIG Sets the external trigger to trigger on the
rising edge (POS) or the falling edge (NEG)
of the rear panel trigger input.
UNITS AUTO MAN AUTO COUPLE Accesses a menu of amplitude units. AUTO
indicates default units for the amplitude
scale are in use. MAN indicates other units
can be selected.
VBW/RBW RATIO BW Displays the coupling ratio between the
video bandwidth and the resolution
bandwidth.
VID AVG ON OFF BW, TRACE Turns video averaging on and off. When on,
it smoothes the trace by averaging
successive traces.
VIDEO TRIG Sets the trigger to video mode. Sweep
triggers occur whenever the input signal
passes through the video trigger level, with
the selected slope. When this mode is
selected, a T appears on the left side of the
display.
VIDEO BW AUTO MAN AUTOCOUPLE,
BW
Adjusts the video bandwidth of the
spectrum analyzer. The video bandwidth
may be coupled to other functions (AUTO)
or adjusted manually (MAN).
VIEW A TRACE Displays the current contents of trace A,
but does not update the contents.
VIEW B TRACE Displays the current contents of trace B, but
does not update the contents.
Table 4-4 Control Functions
Control Keys Access Key Description
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