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Frequency and phase deviation of the received signal

The standard radio signals transmitted by Otakadoya-yama and Hagane-yama stations are also received and monitored at Koganei headquarters and the Kobe sub-station where they are compared to the local frequency standards, and the result is shown here. At each location, two receivers operate for each of the two signals at 40kHz and 60kHz. Both receivers have the same configuration, but due to internal differences, the results slightly vary between them.

The reported frequency deviation is an average over the 24 hours preceding the indicated time. The reported relative phase difference is given directly for the indicated time. The date and time are given in UTC (JST-9h).

Please select the date, receiving location, signal, and receiver number. Then click on “Show data”. The data will be shown in a new window. Each report contains one day of data at one minute resolution, resulting in a maximum of 1440 entries.

The data is retrieved and updated every hour. Information on missing measurements is available here (Japanese).