HD210A is the callsign of atime signal radio station operated by theNavy of Ecuador.[1] The station is located atGuayaquil,Ecuador and transmits in theHF 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 theUtility DX Forum.[3]