[CW] Ship Radio Room clock

[D.J.J. Ring, Jr.]

https://www.ebay.com/itm/384455834271

73
DR

On Sun, Jan 9, 2022 at 4:09 PM Rick Dettinger <k7mw78 at gmail.com> wrote:

> I wonder how much those go for on the “bay”?
>
>
> de Rick  K7MW
>
> > On Jan 9, 2022, at 12:55 PM, Hans Brakob <kzerohb at gmail.com> 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: abqcooks at aol.com <abqcooks at aol.com>
> > Sent: Sunday, January 9, 2022 11:16 AM
> > To: kzerohb at gmail.com; 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
> > <kzerohb at gmail.com> 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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> > =30=
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