User talk:94.98.196.115

May 2011
We welcome and appreciate your contributions, but your recent edits to Communication Systems/What is Modulation? had to be undone. Please see What is Wikibooks? to learn more about what contributions are beneficial to Wikibooks. Please take a look at the welcome page to learn more about contributing to this project. If you would like to experiment further, please use the sandbox instead. Thank you. – Adrignola discuss 12:34, 14 May 2011 (UTC)