[]This is an empty showcase with a few pictures of the renovation. 2 of the 3 glass planks that it had are missing and it has no locks. So it is only fit for pictures. There are plans to replace these pictures, but nothing concrete yet.

Next to the showcase is a radio clock which would give the sidereal time by use of a WWV station. NIST radio station WWV broadcasts time and frequency information 24 hours per day, 7 days per week to millions of listeners worldwide. WWV is located in Fort Collins, Colorado, about 100 kilometers north of Denver. The broadcast information includes time announcements, standard time intervals, standard frequencies, UT1 time corrections, a BCD time code, geophysical alerts and marine storm warnings.¹⁾

Recently the board has been modified by Alex to play a 24h recording of the WWVh signal that he obtained. The board no longer has a radio connection, instead it uses an MP3 player. The recording is cut up into 1 hour parts, so if it ever is turned off it can be reset on the whole hour. (This is just selecting track x on the mp3.) The system is powered constantly to ensure that it stays in sync, but the speaker can be turned off with the red swich or by removing the red cable. The two plugs should not be removed from the board, as it resets the system.

The text on the sign reads: WWV is een kortegolf radiozender in Colorado VS die sinds 1920 zeer nauwkeurig de tijd doorgeeft doormiddel van een tikkende klok en stem die elke minuut aangekondigd hoe laat het is. Dit systeem is vanaf 1955 gebruikt in de sterrewacht en al haar koepels voor bij de waarnemingen, nadat de sterrewacht stopte met zelf de tijd te bepalen. Dit systeem was erg handig omdat je in het donker kon horen hoe laat het was. Door de rode knop om te halen kunt u zelf luisteren naar dit signaal, dat nogsteeds wordt uitgezonden. Deze opname is mede mogelijk gemaakt door Matthew Deutch (WWV) en Dean Okayama (WWVH) van het National Institute of Standards and Technology

WWV is a shortwave radio station in Colorado (US) that has been operational since 1920. This station gave the time in a very precise manner and made it audible by means of a ticking clock and a voice announcement every minute. This system was used in the observatory from 1955 onwards and could be heard in every dome. This was quite practical, as observers did not have to turn on the light to know the time. By flipping the red switch, you can listen to this signal yourself. This recording has been made possible by Matthew Deutch (WWV) and Dean Okayama (WWVH) from the National Institute of Standards and Technology.

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