nesnet
Spectracom 8182 WWVB Clock - NetClock/2
The NetClock/2 receives and demodulates the WWVB 60 KHz time signal. Once the signal is decoded, the NetClock/2 provides accurate and traceable time data. Or did...
Above is an historical picture, clock locked to WWVB on April 1, 2012.
WARNING: Spectracom receivers extract the carrier from WWVB using a PLL to discipline a local oscillator. The new phase modulation scheme, to be activated by NIST in July, 2012, does not allow carrier extraction... and impacts Spectracom's WWVB products ability to decode time-of-day reliably.
Translation: Netclock/2 will fail. It will unlock from "time sync" and begin freewheeling when the change is initiated. It will become a boat anchor.
The good news: cheap consumer clocks will work better.
Spectracom 8182 WWVB Clock - NetClock/2
The NetClock/2 receives and demodulates the WWVB 60 KHz time signal. Once the signal is decoded, the NetClock/2 provides accurate and traceable time data. Or did...
Above is an historical picture, clock locked to WWVB on April 1, 2012.
WARNING: Spectracom receivers extract the carrier from WWVB using a PLL to discipline a local oscillator. The new phase modulation scheme, to be activated by NIST in July, 2012, does not allow carrier extraction... and impacts Spectracom's WWVB products ability to decode time-of-day reliably.
Translation: Netclock/2 will fail. It will unlock from "time sync" and begin freewheeling when the change is initiated. It will become a boat anchor.
The good news: cheap consumer clocks will work better.