Changes

==Attenuator Circuit==

The attenuator circuit in the Lab-in-a-Box manual is setup for the gain of the Behringer UCA202 on Windows XP. You can either work with your teaching assistant to develop an attenuator circuit that fully compensates for the gain of your system in hardware or use the software tweaks to [[xoscope]] described below.

The [http://www.ece.vt.edu/tutorials/labinabox.php ECE: Lab-in-a-Box Tutorials] page has an article [http://www.ece.vt.edu/tutorials/download/Expt12_v5.1.pdf Experiment 12: Calibrating A Sound Card Oscilloscope]. A schematic to be built on the ANDY board is on page 3. The tutorial uses the Zeitnitz windows oscilloscope software.