I got thinking recently about a particular public radio network that until recently still signed off for 3-4 hours nightly...at the time I think it was the last NPR station(s) that regularly signed off (that I'm aware of).
Anyhow, after the sign off message, they started broadcasting the time, not from WWV/WWVH, but from the USNO's Master Clock. It remained on for about 5 minutes until power was shut off.
The big question I have is where would this network have gotten a nonstop feed of the USNO's Master Clock? I am aware of the phone numbers for WWV/WWVH and USNO, along with hams running WWV internet streams, but those calls are limited to about 2 minutes and none are radio-grade audio quality
Anyhow, after the sign off message, they started broadcasting the time, not from WWV/WWVH, but from the USNO's Master Clock. It remained on for about 5 minutes until power was shut off.
The big question I have is where would this network have gotten a nonstop feed of the USNO's Master Clock? I am aware of the phone numbers for WWV/WWVH and USNO, along with hams running WWV internet streams, but those calls are limited to about 2 minutes and none are radio-grade audio quality