Matches in DBpedia 2014 for { ?s ?p BPC is the callsign of a time signal from the China, BPC Shangqiu Low-Frequency Time-Code Radio Station (Shangqiu, Henan Province, 34°56′54″N 109°32′34″E), which was cooperatively constructed by the National Time Service Center of the Chinese Academy of Sciences and Xi’an Gaohua Technology Co., Ltd.[1], since April 25, 2002.BPC transmits a time signal on 68.5 kHz, which can be used for steering radio controlled clocks. As opposed to other time signal transmitters, the signal format is not published openly; a special license is required. The transmission site is situated near Shangqiu at 34.457°N 115.837°E / 34.457; 115.837.BPC broadcasts at 90 kW for 21 hours per day, with a 3 hour break from 05:00–08:00 (China Standard Time) daily (21:00–24:00 UTC). BPC includes both conventional amplitude modulated time code and additional spread-spectrum time code, about which little is known.. }
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- BPC_(time_signal) abstract "BPC is the callsign of a time signal from the China, BPC Shangqiu Low-Frequency Time-Code Radio Station (Shangqiu, Henan Province, 34°56′54″N 109°32′34″E), which was cooperatively constructed by the National Time Service Center of the Chinese Academy of Sciences and Xi’an Gaohua Technology Co., Ltd.[1], since April 25, 2002.BPC transmits a time signal on 68.5 kHz, which can be used for steering radio controlled clocks. As opposed to other time signal transmitters, the signal format is not published openly; a special license is required. The transmission site is situated near Shangqiu at 34.457°N 115.837°E / 34.457; 115.837.BPC broadcasts at 90 kW for 21 hours per day, with a 3 hour break from 05:00–08:00 (China Standard Time) daily (21:00–24:00 UTC). BPC includes both conventional amplitude modulated time code and additional spread-spectrum time code, about which little is known.".