User talk:87.66.92.109

May 2020
Hello, I'm DVdm. I noticed that you made a change to an article, Global Positioning System, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. DVdm (talk) 14:28, 28 May 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.

July 2020
Hello, I'm Path slopu. I wanted to let you know that I reverted one of your recent contributions —specifically this edit to ATSC standards—because it did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help desk. Thanks.  PA TH  SL OP U  14:25, 18 July 2020 (UTC)

August 2020
Hello, I'm LuK3. I noticed that you recently removed content from Magenta without adequately explaining why. In the future, it would be helpful to others if you described your changes to Wikipedia with an accurate edit summary. If this was a mistake, don't worry; the removed content has been restored. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. --   LuK3      (Talk)   17:20, 9 August 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.

Please refrain from attempting to make unconstructive edits to Wikipedia. Your edits appear to constitute vandalism and have been [ disallowed by an edit filter.] If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. Materialscientist (talk) 17:24, 9 August 2020 (UTC)