X-Stream Operator’s Manual
WM-OM-E Rev I 93
2. Touch inside the Coupling field and select a coupling mode from the pop-up menu.
Probe Attenuation
To Set Probe Attenuation
LeCroy's ProBus® system automatically senses probes and sets their attenuation for you. If you
want to set the attenuation manually,
1. In the menu bar, touch Vertical, then select a channel from the drop-down menu.
2. Touch inside the Probe Atten. data entry field
. Touch a divide-by menu
selection or touch Var (variable). If you choose Var, type in a value using the pop-up
numeric keypad.
Bandwidth Limit
Reducing the bandwidth also reduces the signal and system noise, and prevents high frequency
aliasing.
To Set Bandwidth Limiting
To set bandwidth limiting
1. In the menu bar, touch Vertical, then select a channel from the drop-down menu.
2. Touch inside the Bandwidth field and select a bandwidth limit value from the pop-up menu.
The options are
• Full (all X-Stream scopes)
• 4 GHz (WaveMaster 8600A/8500A, DDA-5005A, SDA)
• 3 GHz (WaveMaster 8600A/8500A/8400A/8420, DDA-5005A, SDA)
• 1 GHz (WaveMaster Scopes, DDA-5005A, SDA)
• 200 MHz (all X-Stream scopes)
• 20 MHz (all X-Stream scopes)
Linear and (SinX)/X Interpolation
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 waveshapes, especially when the sample rate is 3 to 5 times
the system bandwidth.
To Set Up Interpolation
1. Touch the button for the channel you want to set up,
for example.
2. In the dialog area, touch inside the Interpolation data entry field under Pre-Processing.
"Pre-Processing" means before Math processing.
3. Touch inside the Interpolation data entry field. A pop-up menu appears offering Linear or
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