News from 2016-07-22


December 2016 Leap Second Information


On July 6 the IERS announced that a leap second will be introduced on December 31, 2016. A few days later, on July 19 the GPS satellites started to transmit the information about the upcoming leap second.

The beginning of the transmission of the leap second announcement correctly triggered "Leap Second Announced" notifications on all GPS synchronized Meinberg systems. As GPS satellites are updated one by one, it took a few hours before every active GPS satellite included the updated leap second information in their signal.

A detailed description of the leap second can be found on our Leap Second Information page in the Info section of our website .

If you use Meinberg LANTIME products which do not have a built-in GPS receiver or where GPS is not used as a reference, you can update the leap second data in your systems by installing a small firmware update. This update includes the latest IERS leap second file for NTP as well as Meinberg specific leap second information required to apply the leap second correctly on December 31, 2016. If your Meinberg LANTIME device is synchronized by GPS or GLONASS it is not necessary to install this update.

https://www.meinberg.de/download/firmware/lantime/v6/v6_update_leapsecond_files_2017.upd - Leap Second Update for December 2016

Please note that on some LANTIME systems installing this update can require a reboot and therefore should be planned carefully.

You can find the official Bullletin C of IERS here:

ftp://hpiers.obspm.fr/iers/bul/bulc/bulletinc.52 - Latest Bulletin C No. 52 announcing the leap second at the end of December 2016

If you want to update the leap second file on your NTP synchronized computer systems and clients, you can download the latest version of this file from the IERS webserver:

https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list - Original IERS leap second file for NTP
https://www.meinberg.de/download/ntp/leap_second - Mirror on Meinberg webserver

If you have any questions regarding the handling of the leap second by your Meinberg synchronization devices, please do not hesitate to reach out to your Meinberg technical support contact.


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