Tywyn
and ...
the
Marconi
connection
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Memorial Hospital and
Marconi Station, Towyn
Mast Maintenance with the team from RJC UK September 2, 2009
in the filthiest of weather, on the edge of a storm and not for the faint hearted!
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Towyn - the MARCONI connection
Marconi at Towyn / Tywyn
Tywyn is a small, ageing seaside resort on the shores of the Irish Sea
in the southern Merionethshire part of present day Gwynedd. There are very many
varied spellings of the place name and it has the same root as the Cornish word Towan
for sand dunes. In steam railway
days, large numbers of excited holiday makers would each summer be disembarked
from long loco-hauled trains. Although the census figures have hardly
altered over the past century, today it still retains as regular visitors
and semi-permanent inhabitants many times its core resident population
of just over 4,000 by way of people travelling via the long-outdated,
dangerously twisting roads from the Midlands and elsewhere to locally
owned caravan, camping and chalet parks dotted around the vicinity. There
is also a tourist trade based mainly on the preserved Talyllyn narrow
gauge railway, one of several on the train enthusiasts' round-Wales loco
outing.
In the 19th and 20th centuries slate was quarried from inland and transported
to the coast by the narrow gauge railway to the main line, but after the
industry failed much of the workforce and all those dependent upon them
moved away from the region to work elsewhere, either in coal mines further
south or other trades.
Without the weekly summertime rail influx to fall back on, which had
grown substantially by the mid-20th century, and which had contributed
to the area's social vitality, housing developments, healthcare amenities
and economic prospects, plus various military encampments which had fallen
into disuse, Towyn became a quiet, semi-remote, and predominantly English
speaking anomaly bounded by the rural Snowdonia National Park. Together
with its adjacent smaller but picturesque harbour village of Aberdovey
(Aderdyfi) the locality is now a destination for weekends or short breaks
and offers its immediate hinterland the convenience of its small local
shops.
Close to the sea front and previously duned locality of Bryn y Mor (grid
ref: SH581004) there is a BBC medium wave transmitter site dominating the
skyline, currently run by Crown Castle, with sheep grazing around the two
giant steel guyed mast bases. It contains a 5kW sender for the 882kHz (340.5
metres) BBC Wales (previously Radio 4/Home Service) repeater, infilling
the Cambrian Coast area for the main transmitter which cannot properly service
this distance from the principle site at Washford in Somerset on the same
frequency. This had originally been announced in 1951 by the Postmaster-General
as one of 12 low power stations planned to improve Home Service coverage
and was to have been sited at Pwllheli.
Additionally a 1kW sender on 990kHz acts as local repeater for Radio 5 (previously
this was used for Radio 2 before its national migration to vhf). There were
also mediumwave transmitters for Radio 1 (1214kHz until 1978 when it was
moved to 1089kHz) and Radio 3 (.5kW) which were decommissioned in 1994 when
Blaenplwyf near Aberystwyth took over service
for Ceredigion and SW Gwynedd as transfer of these networks was moved to
vhf. The Radio 3 transmitter was not, unusually, recommissioned at this
site for Virgin Radio.
Early radio holds a strong historical Marconi connection with Towyn
- as it continues to be known and spelt by many, although it is recorded
on recent maps as Tywyn.
The war for Irish national liberation had resulted in the transatlantic
telegraph service which had operated from Clifden in County Galway, on
the west coast of Ireland, being eliminated. For 15 years, Clifden's 20
kV generators' spark-induced blue flashes had sent tens of thousands of
wireless messages across the Atlantic to its North American counterpart
station at Table Head in Glace Bay, Nova Scotia. The service was transferred
to just 60 miles north of Tywyn, at Waunfawr near Caernarfon, where in
early 1914, the Marconi Company built a large, high power long wave wireless
telegraph transmitting station (callsign MUU) on the lower slopes of Cefndu.
*
Its associated receiving station was installed by the Marconi Wireless
Company on the southern edge of Tywyn on property obtained from Roger
Corbett, just inside what is now the Snowdonia National Park. The two
stations formed the British telegraph link between London and New York,
with landlines running from Tywyn to the Central Telegraph Office in Fenchurch
Street, London, and later on to the larger Radio House in Wilson Street,
where typists read off the messages from tape and transferred them to
telegrams for delivery.
Marconi's primary antenna was a horizontal directional type supported
by five 300 foot lattice steel masts running west to east for 3km aligned
with New Brunswick, with the final mast 1,400 feet above sea level. There
was also a parallel reserve antenna system supported by 36 wooden 30 foot
high masts. To enable duplex working, Towyn used a system of balancing
antennas 80 feet high, at 90 degrees to null out unwanted emissions from
the Waunfawr transmitter picked up on the first antenna.
Tests were conducted between Tywyn and Caltano in Italy, and transmissions
followed to and from Glace Bay, New Brunswick and New Jersey on 27kHz.
During World War I, the Marconi Company transatlantic stations at Towyn
and Caernarvon (more recently Tywyn and Caernarfon) were
operated through the British Post Office for the Admiralty, with Tywyn
receiving station being guarded by soldiers from Newtown. Wartime activities
at Tywyn included regular transmissions for Egypt and Russia. The Admiralty
requisitioned for war production or service all company sites and Marconi's
Head of Training was seconded to the War Office to organise the army wireless
school. The Company was expected to provide operators and instructors
from its reserve of human resources built from encouraging radio amateurs
to learn Morse code. Due to Italy's neutrality during the early part of
the imperialist war Marconi was declared an 'alien' and the subject of
shortlived suspicion.
C.S. Franklin developed an improved anti-interference antenna design
in 1920 utilising two Bellini-Tosi loops held aloft by four 100 foot wooden
masts installed in a field behind the Gwalia which replaced the five masts
then at the station.
Guglielmo Marconi visited Towyn receiving station in 1918, sailing into
Aberdovey (Aberdyfi) Harbour in his luxury steam yacht Elettra,
the name he gave to his daughter. The yacht was a floating radio and electronics
laboratory equipped with short and longwave equipment installed to conduct
tests across the sea. Transmissions were monitored from the Isle of Wight
and Poldhu in Cornwall, where transatlantic experiments had been successful
for the first time ever in 1901 with St. John, Newfoundland at a distance
of 3,862km using the historic Morse code signal "S".
In 1916 a school was opened for female telegraphists to go on a six month
training course. Eight were appointed to Towyn, where they pioneered the
concept of a 24-hour shift system in Tywyn station wireless operating
room. The receiving operator on shift would sit next to the transmitting
operator who had remote control of the transmitter at Waunfawr.
Eight postwar bungalows were built for station staff and families. They
are still there, privately owned, and known as the Marconi Bungalows.
Further up the hill and behind is the original station building, now converted
into two houses, at Hafod y Bryn. The remains of the base of the 300 foot
radio mast are also visible at the top of Escuan Hill, which used to be
a popular walk in tourist times but is now closed, awaiting legislation
to make it accessible once more.
Full duplex commercial service commenced on March 22, 1920. A message
destined for the United States would be handed in at a Marconi London
office and, using Morse code, punched on to paper tape. On receipt via
landline at Towyn it was automatically reproduced on punched tape, and
passed on, still via landline, through the Wheatstone transmitter which
controlled the signal keying switches at Waunfawr, sending the message
at a speed of up to ten letters per second across the North Atlantic.
The first transmissions to Australia passed via this route. Service was
discontinued on 26 March, 1923 and transferred to Brentwood in Essex,
using the huge Post Office station at Rugby for incoming reception, although
the transmitter at Waunfawr continued in use until 1939 when the Marconi
Company shortwave service replaced it. During World War 2 Marconi, now
back in Italy, publicly supported the fascist war effort. British radio
amateurs annually reactivate a commemmoration at Waunfawr on
International
Marconi Day.
The BBC operated Towyn station for many years after closure and this
is possibly one of the reasons giving rise to the locating of the existing
BBC Tywyn transmitters. If you can catch Tywyn tourist office open (planned
for closure) you may view a display of historic pictures of the Marconi
radio station.
* There is a story that an operator at the Towyn Marconi Radio Station
came to work there as a result of tossing a coin, his friend going on
to become one of the two Marconi Telegraph Company-employed Wireless Operators
onboard the fated maiden voyage from Southampton of RMS Titanic, callsign
MGY, which struck an iceberg in the North Atlantic and sank. We
are seeking confirmation of this.
The Morse spark gap signal they transmitted from Titanic's Marconi
Room late on April 14, 1912 was CQD. "CQ"
derives from French, the official international postal language, sécurité
(safety or pay attention) and not, as many believe, "seek you",
to which Marconi added a "D" for Distress. Sécurité
is still an official international maritime call for attention.
Callsigns beginning with the letter M for Marconi were originally
allocated by the Marconi Company to their own ships and land stations.
After the 1912 London Radio Conference countries were assigned their own
international callsign prefix letters, M (and also G) thenceforth established
British identification.
Of the two radio operators on Titanic, Jack Phillips, aged 25, died of
hypothermia before any rescue boats arrived. Harold Bride continued for
some years as a Marconi operator, and lived until 1956.
A radio amateur living at Gelligroes, Monmouthshire reported hearing the
Titanic distress message to the local police who were sceptical. Marconi
subsequently visited Mr. Moore at Gelligroes in person to see the equipment
he had built and decided to employ him.
William James Cotter was the Marconi operator on the Virginian
when the Titanic sunk and received the final message from the Titanic.
In 1913 he transferred to the Clifden station in Ireland and during WW1
to Towyn.
Telford & District Amateur Radio Society
celebrated International Marconi Day on April 25th, 2009 by operating
a radio station using callsign GB8MD from a field next to the original
Towyn Marconi Receiving station buildings. TDARS plans to repeat the "Towyn
Expedition" on April 24th, 2010 with a reactivation of the GB8MD radio station.
The Blaenplwyf transmitter site, 25 kilometres
from Tywyn and currently run by Crown Castle, has a single mast at 123m
agl (300m aod), from April 24, 1957 replaced the vhf tv service radiated from the 1,000
foot Arfon mast at Nebo, near Pwllheli (itself a relay of the Preseli
station at Foel Drych in Pembrokeshire, 81 kilometres distant), and also the
medium wave BBC programmes which had been broadcast from Tywyn. Today
this unstaffed station broadcasts:
250 kW (max erp) mixed polarisation vhf fm
BBC Radio 1 98.3 MHz
BBC Radio 2 88.7 MHz
BBC Radio 3 90.9 MHz
BBC Radio 4 104.0 MHz
BBC Radio Cymru 93.1 MHz
BBC Radio Wales 95.3 MHz 120 KW
INR Classic FM 101.1 MHz 10kW
ILR Radio Ceredigion 103.3
100kW Television, group AH, NICAM (until 2010)
BBC1 Ch 31
BBC2 Ch 27
ITV Ch 24
S4C Ch 21
Channel 5 56 W
and DTT
NB This single coverage area was the only UK main station deprived of
Channel 4 UK Television until 2kW Digital Terrestrial TV Broadcasting
(restyled Freeview following the BBC acquisition) became available
in recent years. Mainstream public service television from this national
resource was not allowed in Wales, substituted locally with S4C, filling
unrequired programming outside its short span of primary viewing hours
with material provided by Channel 4 UK, regularly on at least a week-late
basis. However, programming was generally available in other areas by
one means or another, usually by retuning and/or reorienting rooftop antennas.
Channel 4 is also available via satellite although, depending on package
and viewing card, may be subject to additional subscription costs - which
for a British national public service broadcaster seems contrary to purpose.
When analogue terrestrial is closed down, S4C will take over the present
little-watched S4C-Digital channel and the choice of it or Channel 4 will
at last become permanent (as much as anything in broadcasting can be said
to be "permanant").
The digital switchover of the Blaenplwyf transmitter near Aberystwyth,
affecting Towyn / Tywyn, and its 14 relay transmitters was scheduled over
two stages during spring 2010.
Stage 1 - February 10th, 2010:
BBC2 went "digital", permitting additional digital channels becoming available.
Stage 2 - March 10th, 2010:
Freeview power increased from 1666W to 25kW, 15 times stronger.
BBC1, ITV and the remaining analog S4C channel finally switched off, with the final
remaining digital channels becoming available, requiring another re-tuning
of receiving equipment. No more analogue - but don't discard your old set in case you
yet find other uses for it! The broad feeling of waste, profiteering, unnecessary grief and,
for many, hard to finance additional expense over this entire undertaking is palpable.
Will HDTV high-definition television be available from Freeview using a so-called HD-ready receiver?
A suitably up to date Freeview receiver with a DVB-T2 tuner will be required (a few available from 2010)
or yet another set-top box/converter. Channels will be few and far between,
with the popular UK Channel 4 NOT being licensed in this area for HD -
the now all-Welsh S4C will take the slot all over again! For those really not comfortable
with this imposed state of affairs, including the nightly patronising linguistic dressing by a Cardiff-based "weather
presenter" - use a satellite (Freesat or Sky) to access
all British regional television, and on your local Freeview system simply rearrange the search order
so that Channel 4 comes up listed as the fourth channel and at the fourth button press instead of S4C.
HDTV is available from Freesat if you use an HDTV Freesat receiver and a 1080i television set.
Channel 4 HD is available on channel 140 via Sky HD only, requiring a Sky HD box and viewing card,
as well as an HD-1080i TV to view. Freesat boxes have an Ethernet socket which now allow on-demand programmes
provided by the BBC iPlayer.
The Preseli digital switchover date was August 19th, 2009, as was the
Dolgellau relay. Surprisingly, people in the Tywyn area can and do access
via Preseli.
It was the tendency for viewers on the northern and southern coasts of
Wales who preferred to watch neighbouring English regions to avoid Welsh
language programmes from the BBC and ITV altogether, in much the same
way as viewers in the Irish Republic also watched British television stations
in addition to RTE. Nowadays choice may be pursued by utilising satellite
and selecting any UK region of preference, thus alleviating the otherwise
peculiar restriction on being confined to "local" news. Consequently
the population may, at last, participate in the full range of schools
& educational television broadcasting which was always available across
the rest of Britain. It was considered strange that Gwynedd Council's
Website provided a link to Channel 4 Television because of the schools
content available but failed to promote the actual broadcasting of the
full range of programmes within its vast geographical domain, presumably
because of language policy. It is possible to watch all BBC/ITV
variations via satellite and not be deprived now of regional content and
language from other parts of the country. Viewers from other parts of
the country may see what is being shown on the Wales digital transmitters,
although there continue to be analogue-digital discrepencies still to
annoy if your regular programme has been disrupted by something the regional
programme manager chose to show for what may seem obscure reasons. For
example, on the anniversary of the historic and far reaching Dunkirk Evacuation,
despite its importance and relevance to much of the population, local
television did not broadcast the 3-part commemoration owing to the manager
choosing to show something unimportant to the national audience. It was
eventually shown some months later - as it was elsewhere but as a looked
forward to repeat.
Digital Audio Broadcasting (DAB on Band III 217.5-230MHz) is available
on BBC UK and Digital One multiplexes from the Blaenplwyf (National Grid ref: SN569756)
and Preseli (National Grid ref: SN172306)
transmitters. It is possible that the proposed DAB2 standard will make
existing DAB receivers obsolete. Meanwhile the capitalist recession simply
adds to DAB's woes across Britain.
In February 2008, Ofcom announced an area described as North Wales,
covering Gwynedd, Anglesey, Conwy and most of Denbighshire available for
a licence application, but the achievable coverage is likely to be significantly
constrained until mid-2015 under the terms of international spectrum agreements
(i.e. with the Republic of Ireland). Ofcom has licensed Mid & West
Wales to the sole DAB applicant who immediately announced proposals
to broadcast to only one of their two frequency planning allocations:
they will operate using two transmitters at Presely and Carmel from early
2010, adding two more at Fishguard and Llanelli within two years. Licence
winner MuxCo stated it had not identified a commercially viable way of
serving the other half of the licence area, namely Ceredigion and Powys.
There is a chance, depending on orientation of the transmitter at Presely
and other considerations, of a signal reaching parts of Towyn (Tywyn).
BBC National and other digital radio programming could be accessed via
satellite or digital terrestrial television, but this is not viable whilst
travelling, or in most portable situations, and almost all cars are not
equipped in any case other than by user after sales option. OFCOM confirmed
in February 2005 that the region will be among the first to terminate
analogue television, a national process now underway. For some budding
"entrepreneurs", this is a golden business opportunity to set
up as antenna installation "specialists" - they may already
have been knocking on your door - although a replacement antenna (either
outside or in the loft space) is far less likely to be a required purchase
than a replacement quality coaxial cable downlead, flylead and/or shielded
wall socket - if at anything at all.
The formal go-ahead to develop and launch "Freesat",
a guaranteed free-to-view satellite proposition was given in April,
2007 and increasingly includes HD (High Definition) programming
to provide service to areas where there is now, and might continue to
be, a low strength signal. This new service must not be confused with
Sky TV's so-called Freesat from Sky which is broadcast through
the same group of Astra satellites at 28 degrees East. Channel 4 is, at
long last, available via the Sky-box via the add channels selection at
no subscription cost since early 2008.
BBC management's proposition to launch a national free-to-view satellite
platform known as "Freesat" was realised in May 2008 with standard
and high definition receivers available through major stores. "Freesat"
provides guaranteed subscription-free access for licence fee payers to
digital services, including the BBC's digital television channels
and radio services. It is offered on the basis of a one-off initial
payment only, to cover the cost of equipment and installation - no subscriptions,
no packages and you can almost certainly use your old Sky dish - add a
quad-LNB to use both sets. The service will be future-proofed, through
the designing in of high definition and personal video recorder compatibility,
red-button services, etc., and would be marketed through retail outlets
and via the Internet.
The "Freesat" consortium (BBC/ITV) has made available for purchase
their own "Freesat" satellite receivers - which provide Channel
4 and Five, plus many more digital channels incrementally. An alternative
way of using Freeview to transmit HD content by using spatial multiplexing
techniques remains in the background.
Local commercial radio (there are no local BBC stations in this low population
part of Britain) is represented in the area by GMG Radio, part of Guardian
Media Group, with a 9.4 kW transmitter at Presely on 105.7 MHz, fm reception
attanable along the coastal strip and higher ground within line of sight.
If finances were to be found an application would be possible for a community
station - Radio Tywyn - or Radio Towyn! If you've that cash, let us know
about it!
Please notify us of any additional news or archive information which
will assist maintain the currency of this page.
Tywyn coastal defence works during 2010 provided a radio experience with several
vessels owned by Finnish company Sillanpaa Shipping
and registered variously in Finland or The Netherlands, delivering rock and remaining
offshore, sometimes for several days at a time. Marine Band channel 77 (156.875 MHz fm) was used for
inter-ship and ship to shore communications.
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