2008-12-31 23:59:60 UTC WWV Leap Second Insertion

WWV broadcast on 10.0 MHz with the leap second inserted at 23:59:60 UTC. I did edit the audio for the first 60 seconds so one can hear the announcement that had been made in months prior about the insertion of the leap second.

Category:

Science & Technology

Tags:

• WWV
• WWVH
• 2008
• 2009
• Leap
• Second
• UTC
• 10
• MHz
• Time
• Standard
• Icom
• R-20
• New
• Year
• UT-1
• Atomic
• Clock
• NIST
• Jane
• Barbie
• John
• Doyle

[PresentedIn4D]

Do I hear BPM morse in the background?

[mrksvideos]

@PresentedIn4D Ya know, I think I do hear it as well when Jane (WWVH) is done speaking. I might have blamed it on the compression of the video, but after hearing the BPM broadcast I now know what it sounds like (Thank you YouTube!). You are probably right, being from the west coast of the US and being able to ALWAYS hear Firedrake, it is most likely that BPM made it in there. Good catch!

[MaryStewart]

what's the bass tick for? i know the higher one ticks the seconds.

[mrksvideos]

The bass thump is the 100Hz subtone tone that is a Binary Coded Decimal that is used so receivers that can decode it can decode the current minute, hour, and day of year. Stupid YouTube will not allow me to post the NIST direct link for some reason. So this will have to do. Replace the asteriks with dots and -FS- with a foreward slash.

nist*gov-FS-physlab-FS-div847-­FS-grp40-FS-wv_format*cfm

[dwarfer777]

what a crock, only a tosser would spend this much time and effort on this bullshit

[mrksvideos]

LOL! Oh the llittle brains out there...how they wish they could understand the beauty of it all.

[bigsky1970]

@MaryStewart Atomic Clocks (Clocks that set themselves) decode those bass ticks. It includes date and time information, including that particular hour/minute/second.

[SubaruB4RSK]

omg this has bugged me since then but at 2;05 after the tone what is that double tick sound? I would still get it if I called the phone number to the station

[SubaruB4RSK]

@bigsky1970

Yeah I found a site long time ago what tuned into what the atomic clocks hear and it was that same bass sound.. Having said that I don't live on the west coast so it's pretty cool to hear both WWH & WWVH at the same time I can just hardly make out the WWH signal from here.

[Cotronixco]

@bigsky1970 Those are not atomic clocks. They receive RF information from an atomic clock site on a very low frequency.

[PresentedIn4D]

@ChemistInJapan I never get Jane up here, I've heard her once. However, when I go south, I hear her clean and clear.

[ChemistInJapan]

@PresentedIn4D Both Jane and John are awesome people, but I'd have to agree that I like listening to WWVH. I love it best when I can hear both at the same time.

[PresentedIn4D]

@philglassfan For the time, i'd say WWVH's is nicer.

[s52ab]

Thanks for presentation this Time Signals. 73