I realize my problem may be solved using Linear Referencing, and if that's the case I'm looking for help figuring out the workflow involved there.
I'm working in ArcGIS 10.2 Desktop Basic, and this is what I started with. I had a bunch of points where there were animal sightings, and those point were mostly in between two other points called "camera locations" that are start & end points for these animal sighting points. These are separate point features. I was supposed to connect the animal sighting points into a generalized line from the start to the ending camera locations, to have a line. I have this for about a dozen different camera start & end locations, a connect-the-dots line in between them now. Now, I'm supposed to start at the "starting" camera point side of the connect-the-dots line, and measure distances from 0-400', 400-800', 800-1200', and 1200-1600' but if the line ends before 1600' just cut it off at the ending camera location point on the line. To be clear, these are like 12 different polylines in a feature (shapefile), and they each need to be broken up into the measures above.
I'm wondering if someone can take my problem and help me make sense of how to get those measured points along the lines I drew from connecting the previous dots. While I've been using GIS for years, somehow I've never used linear referencing and I'm not sure which of its tools I need to use and when.