Datasheet

Mixed Domain Oscilloscopes — MDO4000 Series
MDO4000 Fr
equency Domain display.
Key spectral parameters are adjusted quickly with the dedicated front-panel menus and
keypad.
Fast and Accurate Spectral Analysis
When using the RF input by itself, the MDO4000 Series display becomes a
full-screen Frequency Domain view.
Automated peak markers identify critical information at a glance. As shown here, the five
highest amplitude peaks that meet the threshold and excursion criteria are automatically
marked.
Key spectral p arameters such as Center Frequency, Span, Reference
Level, and Resolution Ba ndwidth are all adjusted quickly a nd easily using
the dedicated front-panel menus and keypad.
Intelligent, Efficient Markers
In a traditional spectrum analyzer, it can be a very tedious task to turn
on and place enough markers to identify all your peaks of interest. The
MDO4000 S eries makes this process far more efficient by automatically
placing markers on peaks that indicate both the frequency and th e
amplitude of each peak. The criteria used to determine what a peak is can
be adjusted by the user.
The highest amplitud e peak is referred to as the reference marker and
is shown in red. Marker readouts can be switched between Absolute and
Delta readouts. When D elta is selected, marker readouts show each peak’s
delta frequency and delta amplitude from the reference marker.
Two m anual markers are a lso available for measuring non-peak portions of
the spectrum. When enabled, the reference marker is attached to one of
the man ual markers, enab ling delta measurements from anywhere in the
spec
trum. In addition to frequency and amplitude, manual marker readouts
also include noise density and phase noise readouts depending on whethe r
Absolute or Delta readouts are selected. A “Reference Marker to Center”
function instan tly moves the frequency indicate d by the reference marker
to center frequency.
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