Datasheet
Datasheet
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Visualizing Changes in your RF Signal
The time domain graticule on the MDO4000C 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 indepen-
dently, 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.
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 dierent frequency hops, simplifying character-
ization of how the device switches between frequencies.
Advanced RF Analysis
When paired with SignalVu-PC and its Live Link option, the
MDO4000C Series becomes the industry’s widest bandwidth
Vector Signal Analyzer with up to 1 GHz capture bandwidth.
Whether your design validation needs include Wireless LAN,
wideband radar, high data rate satellite links, or frequency-
hopping communications, SignalVu-PC vector signal analysis
software can speed your time-to-insight by showing you the
time-variant behavior of these wideband signals. Available
analysis options include Wi-Fi (IEEE 802.11 a/b/g/j/n/p/ac)
signal quality analysis, Bluetooth Tx compliance, pulse anal-
ysis, audio measurements, AM/FM/PM modulation analysis,
general purpose digital modulation and more.
MDO4000C paired with SignalVu-PC to analyze 802.11ac modulation.
Time Synchronized Insights into Analog,
Digital, and RF
The MDO4000C Series is the world’s first oscilloscope with
a built in spectrum analyzer. This integration enables you to
continue to use your debug tool of choice, the oscilloscope, to
investigate frequency domain issues rather than having to find
and re-learn a spectrum analyzer.
However, the power of the MDO4000C Series goes well
beyond simply observing the frequency domain as you would
on a spectrum analyzer. The real power is in its ability to
correlate events in the frequency domain with the time domain
phenomena that caused them.
When both the spectrum analyzer and any analog or digital
channels are on, the oscilloscope display is split into two
views. The upper half of the display is a traditional oscilloscope
view of the Time Domain. The lower half of the display is a
Frequency Domain view of the spectrum analyzer input. Note
that the Frequency Domain view is not simply an FFT of the
analog or digital channels in the instrument, but is the spec-
trum acquired from the spectrum analyzer input.
Another key difference is that with traditional oscilloscope
FFTs, you can typically either get the desired view of the FFT
display, or the desired view of your other time domain signals