My favorite WWV story: Was helping set up a ham radio station with a rather low-end transceiver (I did not select it...) anyway, there was this one multi-band antenna we were tuning up, and every time we got it close to matched, the receiver went nuts -- crap all over. I needed a signal that I knew would be reliable and where I knew what I would be hearing, so I tuned in 10MHz WWV. When the antenna got close to a good match, I started hearing Mexican polkas.
I quickly dismissed the possibility that WWV had changed its programming.....
As it turns out, our station was about 4 miles away from a local AM station and we were right in a major lobe of their pattern. The crappy front end on our receiver got totally crushed by overload from the AM station, which of course caused IMD products in the first mixer from "DC to daylight", as they say.
Solution: Quickly knocked out a high-pass filter that we could transmit through at 100W. The Polka-Be-Gone(TM).
For anyone interested in the history and technology behind WWV/WWVH/WWVB, NIST has a great writeup from 2005:
Fun fact: the WWV announcer is San Francisco talk show host Lee Rodgers.
You can also listen to WWV by phone. The number is in the PDF.
There should also be doubled ticks near the start of the minute to indicate the difference between UTC and UT1 (i.e., how close we are to needing a leap second). There is one right now, but I did not carefully count what second it should be attached to. (Going to guess 9 though.)
If you'd like to listen to the real thing, check the list of WebSDR servers at http://www.websdr.org/
I have an SDR in my office hooked up to an outdoor random wire antenna. So far this morning I've listened to shortwave broadcasts from France, Nigeria, and Saudi Arabia. The HF band is even more fun at night when propagation is better.
Shortwave listening is an easy hobby to get started with; an RTL-SDR dongle plus a 7M long wire antenna only costs $34 from https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/
I could take a diode, a length of wire and a speaker and know the exact time, no tuning necessary :-)
Back when I was into SWL, I used to get a station in South America. My memory tells me it was out of Peru, but it's not on the wikimopedia list.
What I was thinking of was a time station. It was on the same frequency as WWV, and if the propagation was right you could hear it in Spanish.
In the lower right, there's a controll panel. Type 100000 into the text box in the upper left of it, hit enter. Make sure AM is selected (it should be), and you'll be hearing WWV.
Maybe not for long, though: "the station's future is in doubt, because it, along with WWVB and WWVH, has been recommended for defunding and elimination in the NIST's Fiscal Year 2019 budget request. (https://www.nist.gov/fy-2019-presidential-budget-request-sum... )"
I've always wondered where that sample came from. This simulation is pretty spot on. Well done :)