Feng, Ping; Wu, Guichen; Bai, Yan; Ding, Xiaofeng (August 2010), "Additional spread spectrum modulation timing method in BPC"(PDF), in Tan, Jiubin; Wen, Xianfang (eds.), Sixth International Symposium on Precision Engineering Measurements and Instrumentation, Proceedings of SPIE, vol.7544, pp.75441X–75441X–6, Bibcode:2010SPIE.7544E..1XF, doi:10.1117/12.885845, S2CID110865336, archived from the original on 2018-09-21
The paper describes a proposed addition to the time signal, although the tenses are muddled, with portions in the present tense implying that the phase-modulated signal is operational. Sampled data captured January 2026 (see screen shot above) shows no phase jumps that would indicate phase-shift keying is present.[original research]
Feng, Ping; Wu, Guichen; Bai, Yan; Ding, Xiaofeng (August 2010), "Additional spread spectrum modulation timing method in BPC"(PDF), in Tan, Jiubin; Wen, Xianfang (eds.), Sixth International Symposium on Precision Engineering Measurements and Instrumentation, Proceedings of SPIE, vol.7544, pp.75441X–75441X–6, Bibcode:2010SPIE.7544E..1XF, doi:10.1117/12.885845, S2CID110865336, archived from the original on 2018-09-21
The paper describes a proposed addition to the time signal, although the tenses are muddled, with portions in the present tense implying that the phase-modulated signal is operational. Sampled data captured January 2026 (see screen shot above) shows no phase jumps that would indicate phase-shift keying is present.[original research]
Feng, Ping; Wu, Guichen; Bai, Yan; Ding, Xiaofeng (August 2010), "Additional spread spectrum modulation timing method in BPC"(PDF), in Tan, Jiubin; Wen, Xianfang (eds.), Sixth International Symposium on Precision Engineering Measurements and Instrumentation, Proceedings of SPIE, vol.7544, pp.75441X–75441X–6, Bibcode:2010SPIE.7544E..1XF, doi:10.1117/12.885845, S2CID110865336, archived from the original on 2018-09-21
The paper describes a proposed addition to the time signal, although the tenses are muddled, with portions in the present tense implying that the phase-modulated signal is operational. Sampled data captured January 2026 (see screen shot above) shows no phase jumps that would indicate phase-shift keying is present.[original research]
Feng, Ping; Wu, Guichen; Bai, Yan; Ding, Xiaofeng (August 2010), "Additional spread spectrum modulation timing method in BPC"(PDF), in Tan, Jiubin; Wen, Xianfang (eds.), Sixth International Symposium on Precision Engineering Measurements and Instrumentation, Proceedings of SPIE, vol.7544, pp.75441X–75441X–6, Bibcode:2010SPIE.7544E..1XF, doi:10.1117/12.885845, S2CID110865336, archived from the original on 2018-09-21
The paper describes a proposed addition to the time signal, although the tenses are muddled, with portions in the present tense implying that the phase-modulated signal is operational. Sampled data captured January 2026 (see screen shot above) shows no phase jumps that would indicate phase-shift keying is present.[original research]
Feng, Ping; Wu, Guichen; Bai, Yan; Ding, Xiaofeng (August 2010), "Additional spread spectrum modulation timing method in BPC"(PDF), in Tan, Jiubin; Wen, Xianfang (eds.), Sixth International Symposium on Precision Engineering Measurements and Instrumentation, Proceedings of SPIE, vol.7544, pp.75441X–75441X–6, Bibcode:2010SPIE.7544E..1XF, doi:10.1117/12.885845, S2CID110865336, archived from the original on 2018-09-21
The paper describes a proposed addition to the time signal, although the tenses are muddled, with portions in the present tense implying that the phase-modulated signal is operational. Sampled data captured January 2026 (see screen shot above) shows no phase jumps that would indicate phase-shift keying is present.[original research]
Description (in Chinese) Includes sample of time code captured around 2019-12-01 15:52. The time code diagram starts with the seconds field numbered "0" and ends with the marker numbered "19" but note in the text below that it corresponds to second 1, 21 or 41. The screenshot of a waterfall plot with the BPC signal shows that there is no signal reduction at 19:37:40.
Nikitin, Vladimir (27 Dec 2014). 68.5 time signal– via YouTube. The audio quality is good enough that the AM modulation can easily be seen in an audio editor. The sample is 65 seconds long, from 23:33:06 to 23:34:11 displayed time, so includes two complete and two partial time frames. In the last 11 seconds of the video, starting at 23:34:00 on a Saturday, the encoded time of day is — 00 00 01 11 10 00 10 01 11 00, which decodes to 07:34:00 on a Sunday. This makes sense if the displayed time is UTC, as CST is UTC+8.
