LeCroy SDA, Operator'S Manual

Page: 70 / 397

70
SDA-OM-E Rev H
Finding Scale
You can access the Find Scale button from the channel setup dialog. This feature automatically
calculates peak-to-peak voltage, and chooses an appropriate Volts/Div scale to fully display the
waveform.
Using Find Scale
1. Touch the trace label for the waveform you desire.
2. Touch
the Find Scale icon.
Variable Gain
Variable Gain lets you change the granularity with which the gain is incremented. For example,
when
Variable Gain is disabled, the gain will increase or decrease in preset increments of 10 or
100 mV each time you touch the Up/Down buttons.
However, when Variable Gain is enabled, you can increase or decrease the gain in increments
as small as 1 mV, depending on the scale of the waveform.
Enabling Variable Gain
1. Touch the descriptor label for the waveform whose gain you want to vary.
2. Touch
the Variable Gain check box.
Channel Deskew
Unlike the Deskew math function, channel Deskew does no resampling, but instead adjusts the
horizontal offset by the amount that you enter. The valid range is dependent on the current
timebase ± 9 divisions.
Channel Deskew Setup
1. In the menu bar, touch Vertical ; from the drop-down menu, select a channel to set up.
2. Touch inside the Deskew data entry field and enter a value using the pop-up numeric
keypad.