List of North American broadcast station classes Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.Anti-spam check. Do not fill this in! === Full-power stations in the US === * VHF low (2-6): 100 kW video analog at {{convert|1,000|ft|m|0|abbr=off|sp=us}} in Zone I and {{convert|2,000|ft|m|0|abbr=off|sp=us}} in Zone II and Zone III above average terrain; 10 kW in Zone I and 45 kW in Zone II and Zone III digital at {{convert|1,000|ft|m|0|abbr=off|sp=us}} above average terrain * VHF high (7-13): 316 kW video analog at {{convert|1,000|ft|m|0|abbr=off|sp=us}} in Zone I and {{convert|2,000|ft|m|0|abbr=off|sp=us}} in Zone II and Zone III above average terrain; 30 kW in Zone I and 160 kW in Zone II and Zone III digital at {{convert|1,000|ft|m|0|abbr=off|sp=us}} above average terrain * UHF (14-36): {{convert|5|MW|kW|abbr=on}} video analog at {{convert|2,000|ft|m|0|abbr=off|sp=us}} above average terrain; {{convert|1|MW|kW|abbr=on}} digital at {{convert|2,000|ft|m|0|abbr=off|sp=us}} above average terrain '''Notes:''' All full-power analog television station transmissions in the US were terminated at midnight [[Eastern Daylight Time]] on June 12, 2009.<ref>[http://www.dtvtransition.org/ A New Era in Television Broadcasting] {{Webarchive|url=https://web.archive.org/web/20071123122408/http://www.dtvtransition.org/ |date=2007-11-23 }} - DTVTransition.org</ref><ref>{{cite journal|url=https://www.csmonitor.com/Technology/Horizons/2009/0204/congress-delays-dtv-switch|title=Congress delays DTV switch|date=4 February 2009|journal=Christian Science Monitor}}</ref> Many broadcasters replaced their analog signal with their digital [[ATSC]] signal on the same transmission channel at that time. * All US digital stations received a -DT suffix during the analog-to-digital transition. At analog shutdown, the FCC assigned to each digital station the call sign its associated analog station had used. (with a -TV suffix if the analog station had this suffix, without the -TV suffix if the analog station didn't have it). Stations could optionally choose to keep the -DT suffix.<ref>http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-1253A1.txt - FCC DA-09-1253</ref> Most stations did not keep the -DT suffix.<ref>http://licensing.fcc.gov/prod/cdbs/pubacc/prod/sta_sear.htm Searching for the -DT suffix returns only 91 stations; -TV returns 903, searching for TV stations with no suffix at all returns 1,827. Searches conducted 29 Jan 2011.</ref> * For US analog stations, the -TV suffix was required if there was a radio station with the same three- or four-letter callsign. Stations not required to use the -TV suffix may optionally request it if desired. * Analog audio power was limited to 22% of video.<ref>http://edocket.access.gpo.gov/cfr_2009/octqtr/47cfr73.1560.htm - FCC regulation 73.1560(c)(2)</ref> Summary: Please note that all contributions to Christianpedia may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here. You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see Christianpedia:Copyrights for details). Do not submit copyrighted work without permission! Cancel Editing help (opens in new window) Discuss this page