User talk:117.201.90.193

Your edits to Direct-sequence spread spectrum
Hello, I'm Petrb. I wanted to let you know that I undid one of your recent contributions, such as the one you made with this edit to Direct-sequence spread spectrum, because it didn’t appear constructive to me. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Petrb (talk) 16:21, 4 December 2013 (UTC)