10°30′13″N66°55′44″W / 10.50361°N 66.92889°W /10.50361; -66.92889[1][2]
YVTO is the callsign of the officialtime signal from theJuan Manuel Cagigal Naval Observatory inCaracas,Venezuela. The content of YVTO's signal, which is a continuous 1kWamplitude modulated carrier wave at 5.000MHz,[3] is much simpler than that broadcast by some of the other time signal stations around the world, such asWWV.
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 inVenezuelan Standard Time (VET), and is only sent usingSpanish language voice announcements. YVTO also transmits 100 ms-long beeps of 1,000 Hz every second, except for thirty seconds past the minute. The top of the minute is marked by a 0.5 second 800 Hz tone.[4]
The station previously broadcast on 6.100 MHz[1][5] but appears to have changed to the current frequency by 1990.[6]
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