[CW] Fwd: [Radio Officers, &c] Titanic Radio Room gear. What is known about the technical parameters and dimensions, feeder system of the Titanic

[D Emerson]

That was fascinating.  Thanks for posting.

Cheers,
     Darrel, aa7fv & g3sys.


On Wed, Mar 11, 2020, 12:50 D.J.J. Ring, Jr. <n1ea at arrl.net> wrote:

> Members of CW Reflector will enjoy this.
>
> 73
> DR
>
> ---------- Forwarded message ---------
> From: Jerry Proc <jerry.proc at sympatico.ca>
> Date: Wed, Mar 11, 2020 at 2:17 PM
> Subject: RE: [Radio Officers, &c] Titanic Radio Room gear. What is
> known about the technical parameters and dimensions, feeder system of
> the Titanic
> To: <radio-officers at googlegroups.com>
>
>
> Information on Titanic's antennas can be found here.
> http://www.halifax-arc.org/pdf/TitanicRadio1.pdf
>
>
> -----Original Message-----
> From: radio-officers at googlegroups.com
> [mailto:radio-officers at googlegroups.com] On Behalf Of D.J.J. Ring, Jr.
> Sent: Wednesday, March 11, 2020 1:35 PM
> To: Radio Officers Google Group
> Subject: Re: [Radio Officers, &c] Titanic Radio Room gear. What is
> known about the technical parameters and dimensions, feeder system of
> the Titanic
>
> Hello Dave,
>
> Doing some research on early aerials like Titanic used, I found that
> they were usually parallel wires but some coast stations tried
> "zig-zag" type of wires.
>
> That is wires running from the origin to the end of the flat top,
> going down a 30 cm (aprox. one foot) and then running the wire back to
> the origin, but when reaching the origin, again going down 30 cm (1
> foot) and then continuing outward again towards the end, making one
> continuous wire but zig-zagging instead of parallel wires.
>
> This was known to increase the radiation resistance.  I have a 1930
> Bern book of ships, and I believe Olympic was still listed, ships were
> given with antenna current measurements.
>
> I'll take a look.
>
> 73
>
> DR
>
> On Wed, Mar 11, 2020 at 12:37 PM g4jht <g4jht at eircom.net> wrote:
> >
> > I have come in on this fairly late but have a couple of questions that
> > may have been asked previously.
> >
> > What is known about the aerial/antenna arrangement of the Titanic and
> > the lead-in/feeder setup?
> > Also the technical properties of it aerial(s) , capacitance and
> > radiation resistance, meter-amp rating (probably to early for that) or
> > the physical dimensions needed to take a shot at calculating electrical
> > properties.
> >
> > 73,
> >     Dave in Ireland.
> >
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