[time-nuts] Re: Subject: Re: Leviton VTP24 Is this Time Accurate enough? - Line Frequency and TXOs

2021-08-28 Thread D. Resor
In Southern California Edison's region I know that 60Hz used as a time reference has been unstable in possibly the last 10+ years. I have found that depending on whether in the summer clocks which use this reference tend to run slower, and in the winter they run faster. Have you noticed that in s

[time-nuts] Leviton VTP24 Is this Time Accurate enough?

2021-08-26 Thread D. Resor
I inquired with Leviton as to the accuracy of the VTP24 24 Hour Programmable Timer with DST. https://www.leviton.com/en/products/vpt24-1pz Don Resor Here is the reply I received: Hello, Thank you for contacting Leviton technical support. According to the code it meets, it is required to have t

[time-nuts] WWVB converter

2019-10-25 Thread D. Resor
Here is what seems to be a circuit design to allow WWVB clock receivers work with the current signal format. 2012 WWVB Receiver Modification Modification makes homebrew receiver insensitive to WWVB's new biphase-shifted time code. http://www.maxmcarter.com/rubidium/2012_mod/ Donald Resor N6KAW

Re: [time-nuts] Talking Clock

2019-10-01 Thread D. Resor
I believe this is the glass plate MkII Talking Clock which referred to in AUS. It was retired in 1990. Also shown is the digital replacement system. Progress is great, but in some ways it's also kind of sad. The speaking Clock pt1, Talking Clock https://youtu.be/fp4zlMZVcmM The Speaking Clock

[time-nuts] Maas-Rowe DCB1 Circuit Diagrams, Time Regulation (other than 60Hz) revisited

2019-08-27 Thread D. Resor
For those who might still be interested in a modification to use another source besides 60Hz pulses to keep the clock "on time", I now have the full set of circuit diagrams for this bell clock-controller. If anyone wants to take a look at them, please email me privately at organli...@sonic.net Th

[time-nuts] WWVB Receiver

2019-07-29 Thread D. Resor
Here I found a complete "dead bug" style WWVB receiver project from 2017 on YT. #0001 WWVB Receiver Project - Part 1 https://youtu.be/zD_INHy3BBI Donald Resor N6KAW ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to ht

Re: [time-nuts] Clock accuracy

2019-07-19 Thread D. Resor
For curiosity sake, this sounds like it is a Master Clock > Slave Clock system. Are the slave clocks DC Impulse driven or do they have AC synchronous gearbox motors which then correct on/near the hour every 12 hours? For instance at 6 O'clock twice a day on let's say the 58th minute? You want

[time-nuts] 60Khz received on Wide-band WebSDR

2019-07-06 Thread D. Resor
>From another list I was directed to this link for those who do not have a shortwave radio. http://websdr.ewi.utwente.nl:8901/ I entered the frequency of 60Khz and am curious to know if this the WWVB transmission I am hearing or something else? Donald Resor N6KAW ___

[time-nuts] Exact Time Mobile Phone Apps

2018-09-02 Thread D. Resor
I believe someone mentioned a cell phone "time" app. This is an image of the one I use for my iPhone. It is Emerald Sequoia. It queries correct time requests from four different NTP servers then picks the one with the least amount of response delay I believe. Of course when I'm out setting th

[time-nuts] WWVB Signal Generator

2018-08-25 Thread D. Resor
I thought I would search in a different way for a WWVB signal generator design. I found this item. While the designer explains it isn't as accurate as WWVB it may be another starting point. http://www.tauntek.com/wwvbgen-low-cost-wwvb-time-signal-generator.htm Donald R. Resor Jr. T. W. &

Re: [time-nuts] NIST

2018-08-13 Thread D. Resor
I wonder if this will also have any effect on Time Service for Computers, Personal and Commercial. A lot of MS Windows products check for the correct time using time servers access from the internet. I'm sure this will also affect outdoor clock towers which also use this reference. Am I mista