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Getting Started
R&S
®
MXO 4 Series
42User Manual 1335.5337.02 ─ 05
If the dialog is open, pressing the key closes the dialog. If the dialog is closed, the key
disables the high definition mode. The key is illuminated as long as the HD mode is
active.
[Touch Lock]
Locks the touchscreen to prevent unintended use. When the touchscreen is off, the
key is illuminated. Press again to unlock the touchscreen.
Camera
Performs the action that is assigned to the key in "Settings" > "Front Panel" > "Hard-
keys". By default, the key saves a screenshot of the waveform display.
[Preset]
Resets the instrument to a predefined state and starts the continuous acquisition. All
measurements, mask tests, zoom, and most individual settings are deleted, and all
channels except for channel 1 are disabled. You can define preset configurations and
save them to a file. The [Preset] key can be configured to set either factory defaults or
a user-defined preset configuration.
[Autoset]
The instrument analyzes the enabled channel signals, and adjusts appropriate horizon-
tal, vertical, and trigger settings to display stable waveforms.
In particular, the horizontal scale is set to a common value for all active channels,
record length and sample rate are set to automatic detection. Vertical scale and offset
are set for each channel individually. Probe settings, channel coupling and impedance
remain unchanged. The trigger source is set to the signal with the lowest frequency,
and the trigger type to positive edge. The trigger level is adjusted, and the trigger posi-
tion is set to the reference point. Measurements, math and spectrum waveforms are
kept. Undo and redo of an autoset is possible.
[Clear]
Deletes all measurement results including long-term measurement and statistics, all
waveforms, and the history.
Apps
Opens the "Apps" dialog, where you can start an application, serial protocol or another
analysis function.
3.2.5 Checking the functionality
To check if the instrument works correctly, you can use the probe compensation signal
and check the displayed signal.
1. Perform a self-alignment of the instrument:
a) Warm up the instrument. The minimum warm-up time is indicated in the data
sheet.
b) Remove all probes from the input connectors.
c) Open the "Menu", and select "Settings" > "Maintenance" > "Alignment".
Instrument tour
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