[time-nuts] Pulsar timekeepers measure up to atomic clocks
See this article at physicsworld.com: http://physicsworld.com/cws/article/news/2012/aug/24/pulsar-timekeepers-measure-up-to-atomic-clocks ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Atomic Clocks are 3 seconds fast
I have two La Crosse wall-mounted atomic clocks, one is set for local time (Mountain) and the other to UTC. They both are synchronized to WWVB and display the same time to the second (by eyeball). However when I tuned in WWV on 5 MHz (it's only about a 100 miles away so the higher frequencies skip over me), the announcements indicate the clocks are both 3 seconds fast. How can that be? Is it the effect of the new phase modulation? I thought it would not affect a clock that sets to WWVB. Puzzled ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Most precise clock ever created - here we go again
Researchers at Fermilab are building a “holometer” so they can disprove everything you thought you knew about the universe. More specifically, they are trying to either prove or disprove the somewhat mind-bending notion that the third dimension doesn’t exist at all, and that the 3-D universe we think we live in is nothing more than a hologram. To do so, they are building the most precise clock ever created. For the entire article go to this link: http://www.popsci.com/science/article/2010-10/fermilab-building-holometer-determine-if-universe-just-hologram JJT ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Google to Provide Raw GPS Measurements
New Android phones will provide raw GPS measurements. This means you can get pseudoranges, dopplers, and carrier phase from a phone or tablet. See the article from GPS World magazine at http://gpsworld.com/google-to-provide-raw-gnss-measurements/. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] WWV Simulator Programs
A Google search found this web page that has 2 simulator programs: http://www.atkielski.com/main/FreeSoftware.html Enjoy! Julian KR5J ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Time Protocol Simulation Module
Googling wwvb simulator I found this interesting module: The “Chronvertor” Time Protocol Simulation Module(Released February 2013) The Chronvertor is a module containing a very accurate battery backed Maxim DS3231 RTC (Real Time Clock) chip working with a Microchip PIC Microcontroller to output the time and date as either a GPS NMEA datagram or a WWVB, DCF77, MSF or JJY radio time protocol.It automatically takes care of DST (Daylight Saving Time) changes around the world and provides for time-zone offsets to generate any local time.The RTC time and date can be initially set-up by either connecting it to a GPS module for a few seconds or by serial commands sent by a PC terminal program. I ordered one to play around with. (Not affiliated with the seller). Here is the web page: http://unusualelectronics.co.uk/products/chronvertor/ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Lady Heather 5.00 doesn't keep time
I installed version 5.00 of Lady Heather as the 3.1 version was affected by the GPS Rollover. It stopped displaying the digital clock which I used as a station clock for my ham radio logging. So I installed and ran version 5.00, specifying the digital clock. It worked for a while with correct time as I compared it to the digital clock display in the WSJTX software GUI. I haven't determined how long it takes but it is in the range of 5 or 10 minutes and then I notice a difference between the clocks. Checking with WWV on the radio, the WSJTX clock is right on but LH is off by some 20 seconds. Is there a bug in LH5.00? Is there an option I didn't set? The 3.1 version worked without any special options other than full screen and digital clock selected. Julian KR5J ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
