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
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
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
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
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
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
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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
>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
___
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
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. &
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
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