View source for YVTO

{{Short description|Time signal radio station in Venezuela}}
{{Coord|10|30|13|N|66|55|44|W|display=title|region:VE-A_type:landmark|notes=<ref name="qsl">{{cite web|url=http://www.swlqsl.com/TimeSignal/1984%20YVTO%20Venezuela.html|title=Time Signal Station QSL Cards: 1984 YVTO Venezuela}}</ref><ref>[http://www.eibispace.de/dx/README.TXT EiBi frequency list]</ref>}}
[[File:Observatorio Naval Cagigal 2000 000.jpg|thumb|250px|Observatorio Naval Cagigal]]
{{Listen |filename=YVTO time.ogg |title=YVTO audio sample |format=[[Ogg]]|description={{Duration|s=15}}}}
'''YVTO''' is the callsign of the official [[time signal]] from the [[Cagigal Observatory|Juan Manuel Cagigal Naval Observatory]] in [[Caracas, Venezuela|Caracas]], [[Venezuela]].  The content of YVTO's signal, which is a continuous 1 [[Watt|kW]] [[amplitude modulation|amplitude modulated]] carrier wave at 5.000 [[Megahertz|MHz]],<ref>Glenn K. Nelson et al., (2005) [http://tf.nist.gov/timefreq/general/pdf/1969.pdf NIST Time and Frequency Radio Stations: WWV, WWVH, and WWVB], Boulder, Colorado: [[National Institute of Standards and Technology]], p. 107.</ref> is much simpler than that broadcast by some of the other time signal stations around the world, such as [[WWV (radio station)|WWV]].

The methods of time transmission from YVTO are very limited. The broadcast employs no form of digital time code. The time of day is given in [[Time in Venezuela|Venezuelan Standard Time]] ('''VET'''), and is only sent using [[Spanish language]] voice announcements. YVTO also transmits 100 ms-long beeps of 1,000&nbsp;Hz every second, except for thirty seconds past the minute.  The top of the minute is marked by a 0.5&nbsp;second 800&nbsp;Hz tone.<ref>{{Citation |url=http://www.meinbergglobal.com/english/glossary/yvto.htm |title=YVTO |author=Meinberg radio clocks |access-date=2013-05-06}}</ref>

The station previously broadcast on 6.100&nbsp;MHz<ref name="qsl"/><ref>[https://www.youtube.com/watch?v=UuzlAoz4KjE March 26, 1984 2.15 a.m., YVTO 6100 Caracas, Venezuela time signal station 1 KW]</ref> but appears to have changed to the current frequency by 1990.<ref>[http://www.schoechi.de/as-ven.html#YVTO QSL information pages: YVTO] shows 5000 kHz reception in September 1990.</ref>

==References==
<references/>
*[http://www.longwave.de/TSS.pdf Standard Frequency and Time Signal Stations on Longwave and Shortwave, page 26 (PDF)] This link is no longer valid.

{{TimeSig}}
{{Time Topics}}
{{Time measurement and standards}}



[[Category:Time signal radio stations]]