Radar Plot Sheets

Does anyone know how I can get my hands on a plotsheet file (.jpg?) that I can keep on my harddrive and print whenever I need. The ones they give us from school are copies of copies so that has deminished the quality of it a bit and the one word document they gaves won’t print full size an an A4 paper. Google is not really helpful either.

I would like to keep one on file so I can print it out whenever we have an assignment with this stuff.

http://gcaptain.com/maritime/tools/tools_main.html

there is a bunch of great resources here