2015 leap second / schrikkelseconde
Catching a leap second…
You can find audio and video at the bottom of the page. Click on the photo's several times to fully zoom in.
Results
I recorded the following seconds:
| System | seconds | Correct |
|---|---|---|
| Tunderbolt GPSDO | 58 59 60 00 01 02 | Yes |
| Meinberg LANTIME M200 | 58 59 59 00 01 02 | Yes |
| hopf DCF 7001 | 58 59 60 01 02 03 | No |
| Conrad DCF Time Terminal | 58 59 00 01 02 03 | No |
Pictures
Test setup:
- Icom IC9100 tranceiver for receiving DCF77 and recording it with a Roland R-05.
- Laptop with Lady Heather software as display for the Thunderbolt GPSDO.
- Conrad DCF Time Terminal
- Meinberg LANTIME M200
- hopf DCF 7001
- Thunderbolt GPSDO
Temporary GPS and DCF antenna's.
DCF77 leap event announced, notice the D_A (daylight saving time, announce) on the hopf clock.
During the leap second.
During the leap second, Lady Heather software
Audio
- DCF77 Leap second announcement audio (lots of beeps, 110MB)
- DCF77 Leap second audio (lots of beeps, 106MB)
Video
Logging
- NTP server ntp1.polaire.nl:
Jul 1 01:59:59 ntp1 kernel: Clock: inserting leap second 23:59:60 UTC Jul 1 01:59:59 ntp1 systemd: Time has been changed Jul 1 02:00:00 ntp1 ntpd[800]: 0.0.0.0 061b 0b leap_event