Filter
Top Products
I
-
I
-
video filter
A post-detection, low-pass Elter that determines the bandwidth of the
video amplifier. It is used to average or smooth a trace. Refer also to
video bandwidth.
windows display mode
A display mode of the analyzers where the screen area is split into
two separate displays. This allows two different frequency spans to be
viewed simultaneously. The analyzer state of the two displays can be set
independently.
zero span
The case in which an analyzer’s local oscillator remains Exed at a given
frequency so that the analyzer becomes a fixed-tuned receiver. In
this state, the bandwidth is equal to the resolution bandwidth. Signal
amplitude variations are displayed as a function of time. To avoid loss of
signal information, the resolution bandwidth must be as wide as the signal
bandwidth. To avoid any smoothing, the video bandwidth must be set
wider than the resolution bandwidth.
zoom
A term referring to the process of looking at something more closely. This
may require narrowing the resolution bandwidth or span to view a signal
more closely. Or, it may mean increasing the size of the analyzer display
from a partial screen to the full screen.
Glossary29