The New York herald., 1921-04-17
'MARCOM WORKING
ON U. S. TOE EUROPE
AIR PHONE LINES
Believes People in Homes
Here Will Soon Talk With
Friends Overseas.
CARTHY'S FEAT PRAISED
italian Inventor Predicts
Great CONNIE rial Advan-
tages Frol Plan.

ssecsaJ Cable 60 TIVE Nsw oEx H1iIs.
| Copyright, rear. sy rHa NEW Yoax HszALA
Now York Herald 1ursau.l
| London, April 10.
GuYlislmo Marconi. tho inventor. re-
| turned TO Italy this week to devote all
his time TO psrfeCSinS the wtreleas
telephone with @ view TO making II
possible 10 communicate between Eu-
rope and the United States. Before
\ he left London Marconi said he was
certain suoh communications would be
! possible In tho near future. He was
enthusiastic over the demonstrations
made by Col. John j. Carthy In long
distance telephoning.
Col Carthy's achievement was
great one N 30 far as ordinary teleph-
ony goes Mr.. Marconi said TO TFfz
NEW York HERALD correspondent here.
However, tho wireless part OF It was
only over a distance OF twenty miles,
and that is nothing. II it had been
1900 miles it would interest me. The
demonstration was said to prove that
il is possible to telephone-by wire, OF
course-from London TO India and,
perhaps. the Cape.
II say that IS quite true, but you
would have to overcome the difficulties
in connection with maintaining a tele-
/ phone wire over that distance. Very
| long wires that go across wild or dis
turbed countries are liable to be broken.
! To telephone TO India II would be neces-
sary 10 have wire that went from
France or Belgium through Central
Europe, through Hungary. the Balkans,
AFfr y
! could not go by way OF the Mediter-
ranean, because telephony viii NOT work
through cable Of any great length.
Obstacles 10 African Phone.
IF wire went to South Africa, II
would have 10 go through France and
Spain and across the Strait Of Gibraltar,
where the cable would not be too long.
and along the whole OF Africa TO the
Cape ! do not think that would DO
practicable in the present state Of the
world
Tho alternative is wireless telephony.
That has been developed, but I do not
think that at present IL is capable OF
going these long distances. although a
few words have been got through from
England 70 America and from America
TO France.
Since ordinary telephony will not
ment In America does not bring the 80
luton of the problem any nearer. in so
far as telephony across the ocean Is con-
cerned.
Il am starting from here this weels
for Italy. where l will embark aboard
my yacht, the Electra, on board which
l purpose 70 carry on wireless TELEPHONY
experiments between points In the Med
iterTanean and England.
i Good speech has already been OBJ
tanned by wireless telephony between
London and Rome. Wireless telephony
is not. however, commercially ready yet
and the object OF my experiments win
be to overcome the difficulties that re-
main.
Hopes 20 Talk to U. =.
II II think We can get wireless telephony
10 work between Europe and the United
States 1t would be a great utility I.
IS not easy TO pick up these messages,
but even II they could be picked up
easily there are many instances In which
the wireless telephone would be used
between America and Europe. Ameri-
cans over here, for example, want to
talk to their wives and swcethearts -
home, and they don't mind who hears
their conversations II they can speak
and get an Immediate answer and hear
tho voices OF those who are dear T.
them.
Tapping isn't very important. be
cause otherwise tho wireless would not
have been used 70 such an enormous
extent as Il was during the war Wire
less telephony IS not developed 70 tic
same extent ms wireless telegraphy. bu-
Il Is not any more likely 70 be overheard
or tapped.
n expect to bridge the Atlantic with
/ yylrnlesa talephonv and I thInk-af-
though one can't always be certain o,
! it--that the ocean will be brldged first
IN a practical manner by wireless
telephony--nct by telephony through
cable. The cost OF laying such a cable
between Europe and America would b.
prohibltlve.
what consider remarkable abous
Col Carthys demonstration was his
success in getting a telephone message
through 5000 miles Of land wire.
Il think that before long We win have
!, wireless telephony wording satisfactorily
between large centres that are great dis
tances apart. The only hope az present
Of speaking with America is by wireless
teiephony-not the ordinary telephone.
II you have something with which YOU
can speak all day with New York there
will certainly be many persons who will
want 70 use X. J do not think II Will
be IN every house. but 1 think X can
DO connected with the ordinary telephone
exchange. to enable subscribers 70 spcaS
with distant countries from their own
homes.
II need not enlarge on the importance
or ths development for connecting
various parts or the world. ! have The
greatest faith in the promise of the
future"