BPL is the call sign of the official long-wave time signal service of the People's Republic of China, operated by the Chinese Academy of Sciences, broadcasting on 100 kHz from CAS's National Time Service Center[1]inPucheng County, Shaanxiat34°56′54″N 109°32′34″E / 34.94833°N 109.54278°E / 34.94833; 109.54278,[2] roughly 70 km northeast of Lintong,[3] along with NTSC's short-wave time signal BPM on 2.5, 5.0, 10.0, and 15.0 MHz.
BPL broadcasts LORAN-C compatible format signal from 5:30 to 13:30 UTC,[4] using an 800 kW transmitter covering a radius up to 3,000 km.[5]
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| Measurement and standards |
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