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Casio G-Shock time sync radio

gshock.casio.com

31–40 of 191 posts

Re: Casio G-Shock time sync radio

#31

If you're interested in buying a Casio watch that does this they tend to be called Waveceptor, I'd recommend looking at one that's also solar powered (tough solar).

Oceanus S100 is absolutely brilliant. Solar powered, radio time sync, titanium (so incredibly lightweight), waterproof, and looks like a dress watch. The only downside is they are only sold in Japan so you have to import them.

Re: Casio G-Shock time sync radio

#32

Yes, as others have stated this is an old technology. I don't really understand why this is not more common in the modern day. it's not really that expensive to implement and they did it with analog chips back in the day... Why do we have to set the time on our clock radios or on our microwaves or whatever? Why don't they just always use this Tech. I don't understand. All you have to do is allow people to store an of…

And daylight savings?

The time code transmitted by WWVB includes two bits to express the state of Daylight Saving Time.

  0 = Standard Time
  1 = DST Ending
  2 = DST in effect
  3 = DST Beginning
https://en.wikipedia.org/wiki/WWVB#/media/File:WWVB_time_cod...

https://en.wikipedia.org/wiki/WWVB

Re: Casio G-Shock time sync radio

#33

Yes, as others have stated this is an old technology. I don't really understand why this is not more common in the modern day. it's not really that expensive to implement and they did it with analog chips back in the day... Why do we have to set the time on our clock radios or on our microwaves or whatever? Why don't they just always use this Tech. I don't understand. All you have to do is allow people to store an of…

And daylight savings?

Radio syncing is perfect for forgetting about setting clocks for DST on/off because the sync automatically does that for you.

Re: Casio G-Shock time sync radio

#34

Yes, as others have stated this is an old technology. I don't really understand why this is not more common in the modern day. it's not really that expensive to implement and they did it with analog chips back in the day... Why do we have to set the time on our clock radios or on our microwaves or whatever? Why don't they just always use this Tech. I don't understand. All you have to do is allow people to store an of…

It does feel like something that’s easy to cut from a bill of materials though, nothing else in the microwave relies on the time being accurate. Probably not expensive to implement, but if you’re building a lot of them, I imagine the ~4cents per unit (maybe more, just guessing) adds up fast.

My professor is a materials/mechanical engineer and in contact with many auto companies. He told me of the following dialogue:

    Prof: Why did you stopped adding passenger side handles? How much one cost?
    CarGuy: Around €1.50
    Prof: That's not much?
    CarGuy: A new car leaves the factory every 60 seconds.
    Prof: Oh.
For the lazy, that's €2,160/Day, €64,800/Month, €777,600/year.

Re: Casio G-Shock time sync radio

#35
post #14

I'd be curious to see a proper signal map for this service. I've been the proud owner of a Casio Oceanus for a little over a year now. I can count on one hand the number of times the watch has synchronized via radio.

Here you go: https://tf.nist.gov/stations/wwvbcoverage.htm

Keep in mind antenna placement matters with these clocks. Different parts of the room can have very different signal strengths. Away from other electronics and near a window is all better.

Re: Casio G-Shock time sync radio

#38
post #31

If you're interested in buying a Casio watch that does this they tend to be called Waveceptor, I'd recommend looking at one that's also solar powered (tough solar).

Oceanus S100 is absolutely brilliant. Solar powered, radio time sync, titanium (so incredibly lightweight), waterproof, and looks like a dress watch. The only downside is they are only sold in Japan so you have to import them.

There's a Lineage LCW-M100TSE that should be a bit cheaper - titanium, sapphire crystal, radio sync. Also JDM though.

Re: Casio G-Shock time sync radio

#39

I inherited one of these Casio Waveceptor watches from my father. It routinely will set itself to a totally random time far into the past/future. I've wondered if maybe contemporary wireless devices interfere with the time sync radio. Another possible factor is the watch itself is ~20 years old.

Maybe Casio are using a Windows server heh (https://news.ycombinator.com/item?id=37151220)

Re: Casio G-Shock time sync radio

#40
post #5

They misspelled Mainflingen, where the German DCF77 transmitter is located, as "Mineflingen", which is basically spelled phonetically (for English speakers).

The website probably had a round trip through katakana which would explain phonetic spellings.
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