MDO4000B Datasheet, PDF (4/28 Pages) List of Unclassifed Manufacturers – Mixed Domain Oscilloscopes

Datasheet
Visualizing changes in your RF signal
The time domain graticule on the MDO4000B Series display provides
support for three RF time domain traces that are derived from the
underlying I and Q data of the spectrum analyzer input including:
Amplitude - The instantaneous amplitude of the spectrum analyzer
input vs. time
Frequency - The instantaneous frequency of the spectrum analyzer
input, relative to the center frequency vs. time
Phase - The instantaneous phase of the spectrum analyzer input,
relative to the center frequency vs. time
Each of these traces may be turned on and off independently, and all three
may be displayed simultaneously. RF time domain traces make it easy to
understand what's happening with a time-varying RF signal.
Advanced triggering with analog, digital and
spectrum analyzer channels
In order to deal with the time-varying nature of modern RF applications, the
MDO4000B Series provides a triggered acquisition system that is fully
integrated with the analog, digital and spectrum analyzer channels. This
means that a single trigger event coordinates acquisition across all
channels, allowing you to capture a spectrum at the precise point in time
where an interesting time domain event is occurring. A comprehensive set
of time domain triggers are available, including Edge, Sequence, Pulse
Width, Timeout, Runt, Logic, Setup/Hold Violation, Rise/Fall Time, Video,
and a variety of parallel and serial bus packet triggers. In addition, you can
trigger on the power level of the spectrum analyzer input. For example, you
can trigger on your RF transmitter turning on or off.
The optional MDO4TRIG application module provides advanced RF
triggering. This module enables the RF power level on the spectrum
analyzer to be used as a source for Sequence, Pulse Width, Timeout, Runt,
and Logic trigger types. For example, you can trigger on a RF pulse of a
specific length or use the spectrum analyzer channel as an input to a logic
trigger, enabling the oscilloscope to trigger only when the RF is on while
other signals are active.
Fast and accurate spectral analysis
When using the spectrum analyzer input by itself, the MDO4000B Series
display becomes a full-screen Frequency Domain view.
Key spectral parameters such as Center Frequency, Span, Reference
Level, and Resolution Bandwidth are all adjusted quickly and easily using
the dedicated front-panel menus and keypad.
The orange waveform in the Time Domain view is the frequency vs. time trace derived
from the spectrum analyzer input signal. Notice that Spectrum Time is positioned during
a transition from the highest frequency to the lowest frequency, so the energy is spread
across a number of frequencies. With the frequency vs. time trace, you can easily see
the different frequency hops, simplifying characterization of how the device switches
between frequencies.
MDO4000B frequency domain display.
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