The only
known photograph of Titanic's Marconi
room.
Taken by passenger Fr.
Browne, who
disembarked in Queenstown.
Operator is probably
Harold Bride.
Photograph from the
Fr. Browne collection.
THE RMS TITANIC RADIO
PAGE
Titanic's radio callsign
Titanic was assigned the callsign MUC in January
1912. Some time after January, Titanic's callsign was changed to MGY - this was previously assigned
to the US vessel
Yale.
As the dominant marine radio company of the time, Marconi allocated their own
callsigns, most of which began with the letter M -
these basically identified a Marconi installation, regardless of its location or
the country of registration of the vessel in which it was installed.
Callsign allocation was eventually standardised at the London
radio conference of 1912 (post Titanic), with prefixes
being allocated on an international basis.
UK coast
stations and ships thenceforth used the letters G or M as the first letter of
their callsigns. US ships and stations used K, N and
W, German stations and ships used D, Italians I, French F, etc.
Trials and
commissioning
The Marconi equipment was delivered to the vessel in time for sea trials on
April 2. Phillips and Bride spent the day completing the installation and
adjusting the equipment. They exchanged test calls with coast stations at Malin Head (Nth coast of
Ireland), callsign MH and Liverpool (actually
known as "Seaforth"), callsign
LV.
By this stage the "wireless" was in almost constant use, with sea trial
reports flowing from Captain Smith to Bruce Ismay
(Managing Director) at the company offices in
Liverpool.
By April 3, the equipment was adjusted and working correctly - Phillips and
Bride exchanged messages with coast stations at Teneriffe (2000 miles away) and even Port Said (more than
3000 miles distant).
Both Radio Officers left the ship at Southampton for a
short period. Phillips signed back on articles on April 6 when he returned
briefly to check the spare parts. Bride returned on board at 2330 on April 9.
Watch
hours
Both men were up early on sailing day, April 10, conducting final testing of
the equipment. They arranged watches by personal agreement: Phillips, the
chief, took the 2000 - 0200 watch, whilst Bride was on duty between 0200 - 0800. There were no fixed watch hours during
the day: the men relieved each other to suit mutual convenience, however a
continuous watch was maintained.
Location of the
radio room
The "Marconi room" was situated on the boat deck (ie: the same deck as the bridge), at the after end of the
superstructure containing the bridge and officer's accommodation - it was about
40 feet aft from the bridge, connected via the corridor which ran down the port
side of the officer's quarters.
The operating room was in the centre of the accommodation - it did not have
an outside facing porthole. Natural light was provided via a skylight in the
deckhead (ceiling).
The R/O's sleeping accommodation was in a separate room to starboard of the
operating room - connected to the operating room by an interconnecting door.
The R/O's shared the officer's toilet/washroom facilities across the corridor.
The Silent Room, containing the main transmitter, was immediately to port of
the operating room.
The operating room was connected to the ship's 50 line telephone exchange.
However, it appears that there was no direct telephone connection to the
bridge.
This problem was rectified on Titanic's sister
ships Olympic and Britanic after the disaster - a
speaking tube was installed which connected the operating room to the
bridge..
Passenger traffic
As the liner's departure preparations were completed, both R/O's prepared for the daily onslaught of passenger
communications directed to and from "ADVISELUM", the wireless code word assigned
to Titanic for passenger's personal traffic.
Passengers sent their telegrams at the inquiry office, on the starboard side
of the forward first class entrance. The handwritten messages were paid for at
the desk, at the rate of 12 shillings and sixpence for the first 10 words, and 9
pence per word thereafter (a substantial sum in 1912, although not for a first
class passenger…).
Telegrams were sent to the radio room by pneumatic tube. At the end of the
day, a balance was struck between the purser's clerk and the R/O's regarding the
number of chargeable words sent.
Incoming passenger messages were received by hand by the duty R/O, and typed
on a telegram form by the other R/O. Passenger traffic was sent from the radio
room to the inquiry desk using the pneumatic tube.
Messages concerning navigation were delivered directly to the bridge.
Similarly, messages for the Captain were delivered by the R/O's to the Captain's
cabin, down the starboard passage of the officer's quarters.
In the 36 hours between leaving
Southampton and the collision, the Titanic's
R/O's received and sent 250 passenger telegrams.
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