G-shock and waveceptor mtg/gw differences

Thread: G-shock and waveceptor mtg/gw differences

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  1. #1
    Member Ghobbit's Avatar
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    G-shock and waveceptor mtg/gw differences

    Hi

    I notice on my GW810 that the watch begins trying to receive a signal at midnight and every hour until a successful reception is received. Once a successful reception is achieved the watch won't try again until the next day. In my case whenever I check the sync time the next day is it always at 12:03am.

    On my MTG960, the watch begins trying to receive at midnight and if successful you would think that that's it. But apparently the manual says the signal reception is tried at midnight and every hour up to 5am whether or not reception was successful the previous hour. So even if the watch gets the signal at midnight it still tries to get the signal at 1am, 2am, etc. So this watch always shows sync time of 5:03 am.

    To me it makes more sense to stop when a successful reception is received - there is no need to continue to re-sync every hour until 5am. Surely the watch doesn't drift that much from 12am to 5am.

    What are your thoughts on this? Has anyone else noticed this?

    The only reason I can think of that Casio would do this on the MTG is that it uses these synchronizations to calibrate the internal drift, such that it's more accurate when there is no signal calibration. (ie - internally tunes the +/- 15 second drfit so it's close to zero as possible)
    Ghobbit

  2. #2
    Member Topher1556's Avatar
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    Re: G-shock and waveceptor mtg/gw differences

    I've seen this difference, and suspect it's simply a difference in programming.
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  3. #3
    Member dudegalea's Avatar
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    Re: G-shock and waveceptor mtg/gw differences

    Quote Originally Posted by Ghobbit View Post
    Hi

    I notice on my GW810 that the watch begins trying to receive a signal at midnight and every hour until a successful reception is received. Once a successful reception is achieved the watch won't try again until the next day. In my case whenever I check the sync time the next day is it always at 12:03am.

    On my MTG960, the watch begins trying to receive at midnight and if successful you would think that that's it. But apparently the manual says the signal reception is tried at midnight and every hour up to 5am whether or not reception was successful the previous hour. So even if the watch gets the signal at midnight it still tries to get the signal at 1am, 2am, etc. So this watch always shows sync time of 5:03 am.

    To me it makes more sense to stop when a successful reception is received - there is no need to continue to re-sync every hour until 5am. Surely the watch doesn't drift that much from 12am to 5am.

    What are your thoughts on this? Has anyone else noticed this?
    That does seem like an odd thing for it to do. Have you actually seen it do this in reality? I wonder whether it's just badly phrased text in the manual, and it really behaves more sensibly.

    The only reason I can think of that Casio would do this on the MTG is that it uses these synchronizations to calibrate the internal drift, such that it's more accurate when there is no signal calibration. (ie - internally tunes the +/- 15 second drfit so it's close to zero as possible)
    Maybe... but even then, a daily check would still be better because you can get a more accurate measurement of drift over a longer period.

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  5. #4
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    Re: G-Shock and Waveceptor Differences

    Quote Originally Posted by dudegalea View Post
    That does seem like an odd thing for it to do. Have you actually seen it do this in reality?
    I have http://www.casio.com/products/Timepi...k/MTG910DA-1V/ and it does the same thing except I think mine starts at 1 AM, not midnight.

  6. #5
    Member Vintage's Avatar
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    Re: G-shock and waveceptor mtg/gw differences

    Yes, I've noticed. Newest Waveceptor modules go for only one succesful sync, whereas older ones go for up to five.

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