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Casio G-Shock time sync radio

gshock.casio.com

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Re: Casio G-Shock time sync radio

#131

Post by Gud »

Ekaros wrote: post #130
firewolf34 wrote: post #9

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…

Just looking at those maps should explain part of it. There isn't enough coverage. So you end up with poor experience with substantial amount of people who do not get good signal. This would likely result in lot of returns, warranty claims and so on. Just not worth it in general.

I have a 15+ years old G-Shock with this feature. When I was in Afghanistan in 2010, I would still occasionally get this signal. I suspect these coverage maps are quite conservative.

Re: Casio G-Shock time sync radio

#132

Post by exitb »

Gud wrote: post #131
Ekaros wrote: post #130

Earlier quoted context omitted.

Just looking at those maps should explain part of it. There isn't enough coverage. So you end up with poor experience with substantial amount of people who do not get good signal. This would likely result in lot of returns, warranty claims and so on. Just not worth it in general.

I have a 15+ years old G-Shock with this feature. When I was in Afghanistan in 2010, I would still occasionally get this signal. I suspect these coverage maps are quite conservative.

I live ~700km from DCF77 and never get the signal indoors. Which is unfortunate in this case, as the watch tries to synchronize at night, when I’m usually at home.

Re: Casio G-Shock time sync radio

#133

Post by mmcgaha »

firewolf34 wrote: post #9

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 isn't more common because most folks don't need it it. I touch my digital watches twice per year and that is more than enough to keep them close enough. Of my two digital watches, one is 1 minute fast and the other is 45 seconds fast. They will both be fine until this fall when we change time again.

Re: Casio G-Shock time sync radio

#134

Post by globular-toast »

I've been using a radio controlled clock for many years. At some point I noticed it was more frequently reporting it had been unable to sync properly. I'd never noticed this before. Turned out the UK time signal had moved from Rugby to Anthorn. It really seemed to negatively impact reception.

Re: Casio G-Shock time sync radio

#135

Post by angled »

ajhurliman wrote: post #3

I have a wall clock that syncs with an atomic clock in Colorado, which was cool at first but I live in Arizona now which doesn’t observe daylight savings so it’s often wrong by an hour now.

I have one of these in Hong Kong, which due to the mountains, doesn't get the China radio signal that reliably.

https://www.amazon.co.jp/-/en/Seiko-GP219W-Office-Satellite-...

Looks great, has a quiet sweeping hand, handles DST automatically provided you set the timezone correctly.

Re: Casio G-Shock time sync radio

#136

Post by cbzoiav »

firewolf34 wrote: post #9

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…

The only thing I can think of is if it was widespread it would be a security risk. Not exactly difficult to broadcast a stronger signal with the wrong time.

Similar problem with GPS being used for clock sync in mobile/cell base stations in much of the US. You can buy an (illegal) jammer off Ali express and bring down a tower for very little money.

Re: Casio G-Shock time sync radio

#137

Post by agos »

cbzoiav wrote: post #136
firewolf34 wrote: post #9

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…

The only thing I can think of is if it was widespread it would be a security risk. Not exactly difficult to broadcast a stronger signal with the wrong time. Similar problem with GPS being used for clock sync in mobile/cell base stations in much of the US. You can buy an (illegal) jammer off Ali express and bring down a tower for very little money.

I don't know where you live, but here broadcasting such a signal would mean having the police knocking at your door really quickly. Unauthorized broadcasts are taken very seriously

Re: Casio G-Shock time sync radio

#138

Post by agos »

ilyt wrote: post #91
jader201 wrote: post #45

Earlier quoted context omitted.

I guess, but still, these seemingly large numbers are still a minute percentage (e.g. probably 0.00001%) of overall costs/revenue that are relatively way, way more. I would understand manufacturing pain, and the ROI just doesn't justify it. But saying that it's solely to do with costs doesn't line up, IMO.

Why you think manufacturers went into touch surfaces in cars much to dissatisfaction (that eventually caused some to back up) of customers? Every button needs a bit of plastic moulded, a (good quality) button, backlight, often LED to signal whether it is on or off, and whole control block needs microcontroller to pack it into CAN bus and CAN bus connector to send. Make whole thing a touch surface and you're saving bu…

luckily software is free!

Re: Casio G-Shock time sync radio

#139

Post by huhtenberg »

symlinkk wrote: post #69
rwmj wrote: post #31

Earlier quoted context omitted.

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.

42mm is huge though

Depends on your wrist, obviously, but on average it's not huge at all. More of the opposite actually.
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