New-York tribune., 1902-01-14
MARCONI ON HIS TESTS.
HAS LEARNED HOW TO PRE-
VENT STEALING MESSAGES.
THE INVENTOR CONFIDENT THAT HE
WILL MAKE TRANSATLANTIC TELEG-
RAPHY A PRACTICAL SUCCESS.

Gugfelmo MarcOni, the inventor of wireless
biography, was the guest of honor last night
at the annual dinner of the American Institute
OF Electrical Engineering in the Astor gallery
of the Waldorf Astoria. T. C. Martin was the
POSTMASTER. and when he introduced Mr.. Mar
conf the three hundred guests arose and gave
the inventor three hearty cheers. Mr.. MarcOni
expressed thanks and gratitude for the recep-
ton, and said that he felt highly honored to be
entertained by such an important organization
He continued
:. 1 think it is admitted and well known that Amer
iGa stands first in electrical engineering. feel
dlstngutshed men whose names household
words throughout the civilized world. l have been
1SmeI f b TO give bref description OF what my sys-
tenn mas accomplished. especially with reference to
perhaps now attracting more attention than any
FfRer Fie problem Its progress has not been slow
Identified was working over distance of about two
two months ago It was possible to communicate
over distance Of six hundred miles certain
been reached chiefly in England
seyentY ships carry permanent nstalla Of wire
ernment, and the remainder are on the great trans
equipped With nstaiiations IN Great Britain and
on the Continent and several are established here
signal sign stations are now being equipped I regret
Scientific If Is 4of fST % to g give & you any
tions constantly asked as to the practical working
.
CANNOT STEAL MESSAGES.
1t is the general belief that when a message is
being transmitted. or has once been intrusted TO
SPACE any one with a receiver would be able to
take II up and get the message This would
that a mans business would be public property
ward situation. especially to men who sent stock
quotations This objection has in large measure
system il has been found possible so to adjust one
Impossible or at least very diffcuit, for any one
not acquainted with the particular tone OF the
at present in use on one ships at sea It IS deemed @ to
be of utility that ship shall be able to com
may communicate with another II in distress.
be used.
Mr.. Marconi read from a periodical address
written by Professor A. Fleming. of the London
University, which explained the Of the at
tuned system, showing that it has been possible
to make wireless telegraph stations independent
of each other. Continuing, the inventor said:
In my experiments in England found that only
enough energy light small incandescent lamp
necessary 10 send a message two hundred
miles. With the intention OF establishing the fact
that messages might be sent across the ocean. TWO
PoWe1T @ Installations were set up one In dsn S0rh
ished the station at Cape Cod. ana the tests had 10
be postponed ! then established a station at New,
miles from the station az Pehu Kites and bal. bal
gave great deal Of trouble. as owing to the tenn
pestuous weather, it was found almost Impossible
to raise the kites and balloons.
satisfaction ~ -ecetyfng The so 'ais at inc iign9
periments would have been continued in Newfound-
once recognized the necessity Of making the sta
ton a permanent one This permanent installation
fact that the Anglo American Telegraph Company
claims 10 nave nonopoy on an telegraPhc COM
and ordinary telegraphic communication. but It
from trying experiments which connected with
claims monopoly on the air and the sea d-augh~
ter)