What do you set your watches to?
Discussion
As this is PH, you will have a high performance Ubiquiti/Unifi network at home.
The right solution is the addition of a Precision Time Protocol Grandmaster clock system with a roof mounted GNSS antenna.
This will provide the kind of precision needed at the relevant cost/performance level expected on these boards.
https://edgenetworks.uk/synchronisation/sync-produ...
The right solution is the addition of a Precision Time Protocol Grandmaster clock system with a roof mounted GNSS antenna.
This will provide the kind of precision needed at the relevant cost/performance level expected on these boards.
https://edgenetworks.uk/synchronisation/sync-produ...
Zaichik said:
As this is PH, you will have a high performance Ubiquiti/Unifi network at home.
The right solution is the addition of a Precision Time Protocol Grandmaster clock system with a roof mounted GNSS antenna.
This will provide the kind of precision needed at the relevant cost/performance level expected on these boards.
https://edgenetworks.uk/synchronisation/sync-produ...
you'll also know that GNSS is off by a few seconds compared to UK time.The right solution is the addition of a Precision Time Protocol Grandmaster clock system with a roof mounted GNSS antenna.
This will provide the kind of precision needed at the relevant cost/performance level expected on these boards.
https://edgenetworks.uk/synchronisation/sync-produ...
Frankychops said:
you'll also know that GNSS is off by a few seconds compared to UK time.
I would be very surprised - there are at least four GNSS constellations available from the UK (GPS, Galileo, GLONASS and BeiDou) as well as several augmentation systems that improve accuracy and/or allow for error removal. Which is why powerfully built director types also ensure they have a multi frequency, multi constellation GNSS receiver.
I use the new optical atomic clock at JILA (which takes into account gravimetric variances observed through General Relativity) and set the hands on my Benson accordingly.
Usually though I just look at my phone and set the hands on my watch to say the same thing. By the end of the day it's only drifted a bit. The Seagull on the other hand can drift by up to 2 minutes in 24 hours which is probably why I always seem to miss the 17:28 tube back home although that could also be TFL making stuff up as they go along.
Usually though I just look at my phone and set the hands on my watch to say the same thing. By the end of the day it's only drifted a bit. The Seagull on the other hand can drift by up to 2 minutes in 24 hours which is probably why I always seem to miss the 17:28 tube back home although that could also be TFL making stuff up as they go along.
Zaichik said:
I would be very surprised - there are at least four GNSS constellations available from the UK (GPS, Galileo, GLONASS and BeiDou) as well as several augmentation systems that improve accuracy and/or allow for error removal.
Which is why powerfully built director types also ensure they have a multi frequency, multi constellation GNSS receiver.
I use it with a delay offset with a rubidium oscillator, I don't want to get the launch time of my nukes wrong.Which is why powerfully built director types also ensure they have a multi frequency, multi constellation GNSS receiver.
The simple solution I have is a radio controlled wall clock in my study which updates itself once a day overnight. The drift of the quartz movement over the following 24 hours is negligible. Then if I wish to be accurate I use this. Or if close enough, then the time on my phone or news channel and restart when the minute changes. Some clocks only need to be approximately good enough!
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