I wonder how much those go for on the “bay”?
de Rick K7MW
> On Jan 9, 2022, at 12:55 PM, Hans Brakob <
[email protected]> wrote:
>
>
>
> Jim mentioned a “comparing watch”, and shared some images to me. Here is one.
>
> An explanation follows the image.
>
>
> <Image.jpeg>
>
>
>
>
>
>
> Prior to LORAN and GPS, navigation at sea depended on precise time for celestial position measurements. The ships
> chronometer was the onboard time standard, kept in a gimbal mounted double box on the bridge.
>
>
> About once a week a Quartermaster would come to radio and obtain a time tick from WWV,
> CHU, JGY, or similar source. (Navy Quartermasters were navigators, not supply clerks.). Using the “comparing watch”, he’d compare that with the ships chronometer and record any deviation noted.
>
>
>
> Additionally, on a daily basis in late morning he’d use the “comparing watch” to compare
> all the other important ships clocks against the chronometer. That daily comparison would be noted in the ships log by the OOD and reported to the Skipper by messenger.
>
>
>
> "Good morning sir, officer of the deck sends his respects and wishes to report the approach of the hour 1200. All
> daily reports have been submitted, ships chronometers have been wound and compared. All magazine temperatures measured and are normal. Request permission to strike 8 bells on time sir.”
>
>
> 73, de Hans, KØHB
> “Just a Boy and his Radio”™
> Master Chief Radioman, US Navy (Ret)
>
> From:
[email protected] <
[email protected]>
> Sent: Sunday, January 9, 2022 11:16 AM
> To:
[email protected]; CW Reflector
> Subject: Re: [CW] Ship Radio Room clock
>
> So here's a dumb question. My clock has silent periods marked Hans but yours doesn't. Did military ships not have to observe silent periods ? And do you think the one I posted a picture of is perhaps from a merchant marine ship ?
> I love the history but I don't know it all ...yet.
> Oh and I have a Bureau of Ships Navy comparing watch (Hamilton 2974) that has an early serial #. #23 made in 1940/1. Jim N5KY
>
> Sent from the all new AOL app for Android
>
> On Sun, Jan 9, 2022 at 9:31 AM, Hans Brakob
> <
[email protected]> wrote:
> Someone asked “Why 24 hour format?”
>
> Answer: Because it was always ZULU-time in the radio shack.
>
> 73, de Hans, KØHB
> “Just a Boy and his Radio”™
> Master Chief Radioman, US Navy (Ret)
>
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