Very clear copy of the WWV/WWVH Atomic Clock Time Signal at 2.5 Mhz

[@cocoaam7711]

How fascinating! Being here in the UK I have never heard this before. I would love to hear more of this kind of thing. Thank you so much Curt for sharing this with us and allowing those of us to hear this who wouldn't normally have the opportunity to do so. Many thanks 😊👍

[@CurtRowlett]

My pleasure. I'll see what I can do about finding more things like this to include on my channel. While I do like number stations and other strange signals a lot, I also have a huge fondness for utility signals such as the WWV time clock (I've been listening to such signals since I was a young kid). Thanks! 👍

[@cocoaam7711]

You are very welcome Curt. Looking forward to hearing/listening to some more of your brilliant finds! ☺ 👍

[@skinnyflea2628]

Wow very clear I can barely pick up wwvb on my tiny shortwave radio with a Sony wire antenna and I’m just some miles from it

[@jonathankleinow2073]

What were those odd tones over the first couple of minutes? They didn’t seem to correspond to the clock in any way I could tell.

[@CurtRowlett]

I noticed those, too, but I'm not really sure what they are. Maybe someone will chime in here later who knows the answer. And thanks for checking out my channel. :)

[@kcmichaelm]

They are programmatic tones listed in the spec for the signal, translatable by software. I rarely hear them, but they are described on the website for Fort Collins. I am near this signal and listen to it quite often.

[@CurtRowlett]

Thanks for the reply, Michael. You see, this is what I really like about the shortwave community. There is always someone who knows the answer to the 100s of questions that are out there. More info here: tf.nist.gov/general/pdf/1969.pdf

[@Nielsquake0]

@@CurtRowlett love your reply even if its so long ago I must give props! I totaly agree

[@alzeNL]

so relaxing :)

[@saraflint2982]

I followed your link and found that my computer's clock is a second ahead. I tried synching the clock with various time servers, including the NIST servers. I've refreshed the webpage several times. It's still a second ahead. My clock is in precise agreement with Time.is, Time.gov, and Timeanddate.com. Any fix for this?

[@CurtRowlett]

There likely is, but I'm sorry to say that I don't know the procedure.

[@saraflint2982]

@@CurtRowlett I just went back to this, and my clock exactly matched the tones. It stayed the same when synchronized with internet time. However, it is now behind the timekeeping sites. Time.is says it's 1.1 seconds behind the "correct" time. Its UTC is 1 second ahead of WWV's UTC. (Could a leap second have been missed?)

[@bigsky1970]

You have to remember that there is a certain amount of latency across the internet. The further you are away from a time server, the larger the latency. So, when you pick a time server, choose one that is geographically close to you. The same is true when you are tuned in to an SDR receiver, the further away it is from you, there will be latency/lag/delay.