Record atomic sync distance?
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  1. #1
    Member Snowback's Avatar
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    Record atomic sync distance?

    I just returned from a vacation in Aruba (heaven on earth) and found that my GW-400J may have set a new distance record for time sync (if there is even such a record). I checked the "crow fly" distance from Fort Collins, Colorado to Aruba & it is 2876.6 miles (4629.5 km), certainly well beyond the advertised distance of the signal. It didn't happen every night, but I would guess that 80% of the time I caught a signal; the strange thing is that the watch was locked in a safe when it got the signal. I've heard of Australian folks getting the Japanese signal once in a while, but this is a first for me. The GW-400J has been a real trooper & a great watch. Here's a quick shot of the sync time on the 28th:

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  2. #2
    Member Mike K's Avatar
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    Re: Record atomic sync distance?

    According to their maps, WWVB and the NIST apparently think that the Caribbean and northern South American should routinely get their signal: Radio-controlled clocks

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    Their estimates seem to have a much larger range than Casio's manuals would indicate, but Casio also consistently underestimates their watches' battery lives as well! "Would we rather have angry customers, or pleasantly surprised customers? Let's err on the side of caution on that spec, too!"
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  3. #3
    Member andyahs's Avatar
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    Re: Record atomic sync distance?

    All of my atomics do well (al least 5 times a week) at 3048 kilometers or 1894 miles


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  5. #4
    Member MCZK's Avatar
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    Re: Record atomic sync distance?

    5246km from Japan to Singapore
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  6. #5
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    Re: Record atomic sync distance?

    Good evening. I pick up the signal nightly (between midnight-2.00am) from Fort Collins in Barbados, 3,329 miles (5,362 km) away.

  7. #6
    Member jmathis's Avatar
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    Maui to Ft Collins, about 3,280-miles.
    I only get a sync about once per year. Usually in Nov-Dec.
    James
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  8. #7
    Moderator G-Shock Forum
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    Re: Record atomic sync distance?

    My record is less impressive:
    1790km from Frankfurt in Greece/Nafplion.

  9. #8
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    Re: Record atomic sync distance?

    Quote Originally Posted by MCZK View Post
    5246km from Japan to Singapore
    Earlier i read Aussies got their signal, and now Singaporeans... Since i live right in the middle i gonna try this too. Any suggestion in where should i point the watch?

    Carpatakled

  10. #9
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    Re: Record atomic sync distance?

    Best if you have a window sill facing north or northeast.
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  11. #10
    Member MCZK's Avatar
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    Re: Record atomic sync distance?

    ^^ same here.

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