HD2IOA is the callsign of a
time signal
A time signal is a visible, audible, mechanical, or electronic signal used as a reference to determine the time of day.
Church bells or voices announcing hours of prayer gave way to automatically operated chimes on public clocks; however, audi ...
radio station operated by the
Navy of Ecuador. The station is located at
Guayaquil
, motto = Por Guayaquil Independiente en, For Independent Guayaquil
, image_map =
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, pushpin_map = Ecuador#South America
, pushpin_re ...
,
Ecuador
Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Eku ...
and transmits in the
HF band on 3.81 and 7.6 MHz.
The transmission is in AM mode with only the lower sideband (part of the time H3E and the rest H2B/H2D) and consists of 780 Hz tone pulses repeated every ten seconds and voice announcements in Spanish.
While sometimes this station is described as defunct, reception reports of this station on 3.81 MHz appear regularly at th
Utility DX Forum[Recently, logs of HD2IOA appeared at the UDXF in March 2008.]
See also
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BPM (time service) BPM is the call sign of the official short-wave time signal service of the People's Republic of China, operated by the Chinese Academy of Sciences, broadcasting from CAS's National Time Service Center in Pucheng County, Shaanxi at , roughly 70 ...
*
DCF77
*
Time from NPL
The Time from NPL is a radio signal broadcast from the Anthorn Radio Station near Anthorn, Cumbria, which serves as the United Kingdom's national time reference. The time signal is derived from three atomic clocks installed at the transmitter sit ...
*
TDF time signal
ALS162 is a French longwave time signal and standard-frequency radio station and is used for the dissemination of the Metropolitan French national legal time to the public. TéléDiffusion de France broadcast the ALS162 time signal, provided by ...
*
RBU (radio station)
*
RWM
RWM is the callsign of a high frequency (shortwave) standard frequency and time signal radio station in Moscow, Russia. It is controlled by All-Russian Scientific Research Institute for Physical-Engineering and Radiotechnical Metrology, and ope ...
*
YVTO
YVTO is the callsign of the official time signal from the Juan Manuel Cagigal Naval Observatory in Caracas, Venezuela. The content of YVTO's signal, which is a continuous 1 kW amplitude modulated carrier wave at 5.000 MHz, is much simpler than ...
Notes and references
{{DEFAULTSORT:Hd2ioa
Ecuadorian Navy
Science and technology in Ecuador
Time signal radio stations