Barre evening telegram. (Barre, Vt.) 1898-19??, 1902-03-14
MARC0NTS MESSAGES. new WIT IN CONGRESS
Inventor Tells More About His
Wireless Wonders.
WILL DEFY ANY oHANoE OF LOSS.

Astronomer serviss Interviews Fe~
nous Scientist ON the Subject Oh
Secrecy-Marconi's Claim That Pri-
vacy of Messages Can At All Times
BE Maintained Proved By ship UNI
bria.
Garrett p. Serviss, the we'll known
astronomer and scientist, interviewed
William Marconi for the New York
Journal regarding the wonderful
achievements of the wireless telegraph
accomplished on the steamer Philadel-
phia. The inventor asked particularly
concerning the charge made that 1T
would be impossible to maintain the
secrecy of messages under the Marconl
system.
II do not WISH" said Mr.. Marconi,
ito discuss any comparison with pres
ent methods, but l will say, as said
to the stockholders Of the company, If
anybody thinks he can pick up one OF
my messages with receiver not IN
tune with 1t let him try"
1t is upon the proper tuning OF the
transmitter and receiver that Mr.. Mar
conf depends to secure secrecy and non
interference, but experience has shown
that q certain number Of vibrations
must intervene between those that are
employed for two different sets OF In
struments in order to avoid Interior
ence, Just what that number Is MIR.
Marconi is not prepared to say, but he
has no difficulty in finding plenty OF
vibrations sufficiently separated along
the scale to give an indefinite number
of frequencies available for different
and independent sets Of instruments.
Asked as to whether the sound waves
cannot be directed by refectors, Mr.
Marconi replied in the affirmative, but
only over distances so short that the
curvature Of the earth's surface does
not conceal the two stations from each
other.
The reader will recall that during
the wonderful experiments on the voy'
age of the Philadelphia code words
were received and read on the steamer
sent from Podhu, in England, up to a
distance Of 1,551 miles. but that beyond
that distance no complete words were
received, but only signals representing
the letter "S," and these continued to
come until the distance Of the ship
from the sending station was almost
2,1OO miles. Then the delicate ticking
ceased to be audible.
Mr.. Marconi was asked why the
words failed to carry as far as the sep
arate signals, and he replied that the
signal for the letter IS" is the easiest
of all to transmit and consequently it
was heard after the energy employed
had ceased to be sufficient to transmit
the signals representing complete
words. AS to the exact amount OF
electric energy needed to send the mes
sa ges 1000 miles Mr.. Marconi did not
care to make any definite statement.
as it an amount within easy reachT
l asked.
."Oh, yes" he replied.
''Then there would be no difficulty II
a ship-any ship, sailing vessel, fol-
Misunderstanding an apparatus pow
| erfu enough to send messages thou
sands of miles?"
mo, there would be no difficulty"
Gas far as developing the necessar!
energy is concerned there would be NJ
trouble in Captain Bernier's taking, a.
l hear he proposes to do, a wireless
telegraph transmitter on his proposes
trip to the north pole?"
mo; the energy required could easil.
be developed"
So soon as he has established hi
transatlantic system Mr.. Marconi viii
attack the problem Of sending mes
sages long distances overland, whicl
he believes to be perfectly practicable
but requiring more force for the sam
distance than over the sea.
When Mr. Marconi was questione'
about the speed Of transmission b.
wireless telegraphy, he replied:
"Twenty-two words minute. That
of course, is the record ON relatlvel
short lines. But see no reason VIII
we should not send practically just a
fast on oceanic lines. In the exper
ments on the Philadelphia no attemp
was made to attain speed. That wa
not our object, and no preparations to
such a test were made But there
no difficulty about speed"
Further confirmation of the clair
that Marconigrams cannot be stole
was supplied by the operator OF tn
wireless system on the Umbria, DAME
| Collins, which recently arrived in Me-
| York. To reporter he said:
"The Philadelphia was ahead OF
: all the way across, so that we were b.
tween her and the station from whlc
!, she was receiving her record message
yet they passed us by without givin
US any indication Of what was goin
/ m and "a far ma any chance of int