User talk:223.189.177.219

October 2018
This is your only warning; if you vandalize Wikipedia again, as you did at Frequency-division multiplexing, you may be blocked from editing without further notice. You've made at least 5 vandalous edits, if you keep at it this will be escalated to WP:AIV Kyle Bryant (talk) 18:29, 3 October 2018 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself or logging in with an existing account so you can avoid further irrelevant notices.