The (normalised) transmission pattern of an ASCII '[' (binary 01011101) using rectangular bipolar non-return-to-zero signalling. Intended for use as one of a series of example images in the en:Intersymbol interference article on en. The other images include:

Image:ISI Bandlimited Pulse Shape.svg - The pulse shape resulting from the bandlimited channel
Image:ISI Bandlimited Corrupted Bipolar NRZ Signal.svg - An example of a message corrupted by transmission through a bandlimited channel
Image:ISI Multipath Corrupted Bipolar NRZ Signal.svg - The same message corrupted by multipath effects
Made using MATLAB, converted to SVG with this script, and final editing (adding the binary values along the top) done with a text editor. If you want the MATLAB code feel free to contact me.
Own work
Blair Bonnett