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

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

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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