BPM
 | |
|---|---|
| Frequencies | 2.5 MHz,5 MHz,10 MHz,15 MHz |
| Frequency Range | 2.5 MHz - 15 MHz |
| Mode | AM |
| Modulation | AM |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 3.5 kHz |
| Location | China |
| Short Description | BPM is a time signal transmitted by the Chinese Academy of Sciences, broadcasting from CAS's National Time Service Center in Pucheng County, China. |
| I/Q Raw Recording | — |
| Audio Sample | |
BPM is a time signal transmitted by the Chinese Academy of Sciences, broadcasting from CAS's National Time Service Center in Pucheng County, China.
Characteristics[edit]
Signals emitted in advance on UTC by 20 msmilliseconds (.001 of a second). Second pulses of 10 msmilliseconds (.001 of a second) duration with 1 kHzKiloHertz (kHz) 10^3 Hz tones. Minute pulses of 300 msmilliseconds (.001 of a second) duration with 1 kHzKiloHertz (kHz) 10^3 Hz tones. UTC time signals are emitted from minute 0 to 10, 15 to 25, 30 to 40, 45 to 55. UT1 time signals are emitted from minute 25 to 29, 55 to 59.
| Minute | Duration | Transmission | |
|---|---|---|---|
| 00 | 30 | 10 | UTC: 10 msmilliseconds (.001 of a second) second ticks, 300 msmilliseconds (.001 of a second) minute ticks. |
| 10 | 40 | 5 | Carrier (no time code) |
| 15 | 45 | 10 | UTC: 10 msmilliseconds (.001 of a second) second ticks, 300 msmilliseconds (.001 of a second) minute ticks. |
| 25 | 55 | 4 | UT1: 100 msmilliseconds (.001 of a second) second ticks, 300 msmilliseconds (.001 of a second) minute ticks. |
| 29 | 59 | 1 | Station identification: Morse call sign for 40 seconds, then voice announcement "BPM 标准时间标准频率发播台" ("BPM standard time, standard frequency transmission station") twice for 20 seconds. |
Samples[edit]
BPM Morse code identifier to voice to 10ms UTC beeps
100 msmilliseconds (.001 of a second) UT1 beeps
Frequencies[edit]
BPM is transmitted by the Chinese Academy of Sciences National Time Service Center in Lintong, Pucheng County, Shaanxi Province, China. Location on Google Maps
Certain frequencies are broadcasted on at certain times of day.
| MHzMegaHertz (MHz) 10^6 Hz | UTC | China Standard Time |
|---|---|---|
| 2.5 | 7:30-1:00 | 15:30-9:00 |
| 5 | 0:00-24:00 | 0:00-24:00 |
| 10 | 0:00-24:00 | 0:00-24:00 |
| 15 | 1:00-9:00 | 9:00-17:00 |
Video Examples[edit]
- BPM Time Signal Station (Xian, China) - 10000 kHz
- 5000 kHz - Reception in Italy of BPM time signal
- BPM China the standard Time and Frequency Signal - August 15.2010
- BPM Time Signal on 10MHz - CW and voice
- BPM China time signal from Hong Kong receiver
- 15MHz BPM China standar time and frequency signals
- Shortwave - BPM Time signal on 5000kHz - NOT WWV.
- BPM - National Time Service Center, China 14 utc on 10000 khz Saturday 20 August 2016
- BPM Time Signal Station (Xian, China) - 10000 kHz
- BPM - National Time Service Center, China 14:30 utc on 10000 khz Saturday 20 August 2016
- BPM -China on 5000KHz
- BPM CHINA TIME&FREQUENCY STANDARD STN. on-5000KHz
- BPM - Shaanxi (China)
