HD2IOA

Time signal radio station in Ecuador

HD2IOA is the callsign of a time signal radio station operated by the Navy of Ecuador.^[1] The station is located at Guayaquil, Ecuador and transmits in the HF band on 3.81 and 7.6 MHz.^[2]

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 the Utility DX Forum.^[3]

Notes and references

^ Instituto Oceanográfico de la Armada, Casilla 5940, Guayaquil, Ecuador
^ Gerd Klawitter (1980). List of Time Signal Stations (9th ed.). p. 22.
^ Recently, logs of HD2IOA appeared at the UDXF in March 2008.

Time signal stations

Longwave

BPC
BPL
BSF
Beta
DCF77
JJY
RBU
RTZ
TDF time signal
Time from NPL
WWVB

Shortwave

BPM
CHU
HD2IOA
HLA
JN53DV
ROA Time
RWM
WWV
WWVH
YVTO

VHF/FM/UHF

Radio Data System

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Defunct

BSF
HBG
NAA
OLB5
OMA
Radio VNG
WWVL
Y3S

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