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A sync trick that works well...

6.8K views 21 replies 14 participants last post by  Watchmaster444@yahoo.com  
#1 ·
...well, it works like a charm for me, anyhow. I have a GWM5610 and live in central Florida. I'm quite a distance from Colorado Springs.

I was getting syncs about 3 times a week if I wore the watch every night while I sleep. That was acceptable. For whatever reason, I started not getting syncs in the last few weeks. Bad weather, possibly.

So, on a hunch, I did a manual sync with the watch draped across the clock radio next to my bed. BINGO. L3 displayed, and it synced in about three minutes time, at 6:00 in the AM. I did it again this morning, and it worked like a charm. As I said already. Like a frikkin' LUCKY CHARM.

I suppose it must be getting reception though the electromagnetic field around the clock radio somehow.

Anyway, you might want to try it sometime and see what happens, if you are not getting syncs as often as you would like.
 
#4 ·
If the clock radio has the AM broadcast band, it probably has an internal ferrite bar antenna. The WWVB signal being picked up by the ferrite bar is likely being inductively coupled to the tiny ferrite bar antenna in the watch. A tuned loop antenna that could tune down to 60 kHz would work even better. The AM broadcast band is about 9 to 28 times as high in frequency as WWVB is.
 
#5 ·
Possibly works in the same principle as this device from Citizen.

This is it, it's a passive component, no power required, just an antenna booster:

Image


It is designed for the 77.5 kHz Mainflingen transmitter in Germany but it is likely that it works also for the 60 kHz Fort Collins signal.

During the night you just lay your watch beside this device which is said to greatly improve the reception.
 
#7 ·
Yes, it has an AM tuner in it, but what I am also noticing is that the watch has to be in the same position every time for it to work, and it may not always work. This morning, for example, it is flipping from L1 to L2 to L3, and the signal is not getting through strong enough to get a sync.
 
#9 ·
Alden:
Texas is waay closer to Ft Collins than Fla. My 4 Multiband 6's used to sync only between 12 midnite and 5Am.
But sitting in my window sill, N W side of house syncs continuously. Thanks WWBV.
Son's GPS watch syncs no better. Ole Hattori was playin his A Game when his engrs designed Solar/Atomic. And for
cheep too.

X Traindriver Art
 
#10 ·
Oddly enough, this little corner on my wife's dresser is 100% on syncing every night. The weird thing is that they are next to a wall on the west end of the house, with the closest window about 4 ft away.
 

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#13 ·
They may be right next to some wiring in the wall there that acts like a signal booster.

Stupid question...Would it help that my clock radio is also atomic?
Well, I'm no nucular fisisisist, but HELL YEAH!

Thanks for the tip. I've found moving the watch to different positions helps.
No problem. Glad I could be of service.
 
#14 ·
Probably, because an atomic clock likely has a ferrite loop antenna that is tuned to the time signal station frequency (60 kHz for WWVB). If you properly position your watch's antenna so it is inductively coupled to the clock's antenna, this should help your reception. The trick is figuring out the proper position that results in maximum signal transfer.
 
#17 ·
My G's always sync at night, but I can never get a manual sync during the day. The atomic clock on my nightstand, however, will sync instantly, day or night if the power is cut off and back on. I always wondered why. I guess it has a better antennae.

Casio should make antennae's for their watches too.
 
#18 ·
My G's always sync at night, but I can never get a manual sync during the day. The atomic clock on my nightstand, however, will sync instantly, day or night if the power is cut off and back on. I always wondered why. I guess it has a better antennae.

Casio should make antennae's for their watches too.
I just got my 1st atomic G-Shock. And I could not get the manual sync to complete. it always errors out. However, I am surprised that the last 2nights it has sync'd beautifully even while being worn to bed.
 
#20 ·
Weather is a factor in that if there is a lot of thunderstorm activity between you and WWVB, the noise on 60 KHz just overwhelms the signal, and the watch / clock can't sync.

Also a watch must, of necessity, have a very small and inefficient antenna.