Teledyne LeCroy WaveSurfer MXs-B Getting Started Manual - Manual (Page 29)

Getting Started Manual
922172-00 Rev A 21
Bandwidth Limiting
You may sometimes want to limit high frequency noise on a very low
bandwidth input signal. If this is the case, you can limit the channel
bandwidth to less than the full bandwidth of the oscilloscope. Select a
different bandwidth by touching inside the Bandwidth field and selecting a
value from the pop-up menu.
Averaging Your Signal
The WaveSurfer MXs-B oscilloscope allows you the opportunity to
continuously average your signal to reduce signal noise and aid in signal
evaluation. If you want to use averaging, select a value here by touching
inside the Averaging field and entering a value up to 1 million sweeps on
the pop-up keypad.
Interpolation Settings
Linear interpolation, which inserts a straight line between sample points, is
best used to reconstruct straight-edged signals such as square waves.
(Sinx)/x interpolation, on the other hand, is suitable for reconstructing
curved or irregular wave shapes, especially when the sample rate is 3 to 5
times the system bandwidth.
Noise Filtering (ERES)
The instrument's enhanced resolution feature improves vertical resolution
by a fixed amount for each filter. This real increase in resolution occurs
whether or not the signal is noisy, or your signal is single-shot or repetitive.
The signal-to-noise ratio (SNR) improvement you gain is dependent on the
form of the noise in the original signal. The enhanced resolution filtering
decreases the bandwidth of the signal, filtering out some of the noise.
Using Shortcut Toolbar
These shortcut buttons can be used to perform specific actions for the
channel corresponding to the current setup dialog.
For more information on Measure, Zoom, Math, and Memories (Reference
Waveforms), refer to the section dealing with that subject.