Unfortunately, you're using the incorrect newrs.cal file for your Radio Shack meter. The file you're using got onto our server by mistake and a few people downloaded it before we found the problem.
Reload the correct file
here.
You shouldn't have to remeasure if you've saved your mdat files and filter files. It will make a difference to the graph though.. Sorry.
Also note
this info about graph axis limits.
brucek