Honolulu star-bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1912-2010, 1913-06-14
HONOLULJINCEATERO OF WORLDS
WIRELESS INTEREST in new ERA

ateS the relay and thus gives an in
dication Of the wireless waves.
improvements Made.
II was soon found, however, that
no great distances could be achieved
with this arrangement, and efforts
were made to increase the range OF
working by improving the sensitive.
ness of the receiving station, and by
increasing the power at the sending
Istation. That these efforts have been
very successful is evident when We
recall the record breaking distance
(about 5000 miles, over which Mr..
Marconi received messages on re-
lcent trip to South America
At the present time there are two
distinct classes of wireless appara-
| tus: the so-called continuous wave
system, and the intermittent wave or
spark system. The former is utilized
by the Poulsen and one or two other
types of apparatus, and the latter by
practically all others.
Again, the spark system may be
Esubdiyided into a number of groups,
depending on the kind Of spark gap
used. Thus we have the Quenched
spark. the synchronous spark, etc.,
the Quenched gap representing the
most advanced development in wire
less sets Of small power. such as
ship stations No doubt the opera
ton of a wireless set calls up in the
minds OF many people recollections
|of crashing, deafening noise; typi-
cal OF the usual spark system appara-
tus On boafd shin g,ch 5eople would
he greatly SURPRISED therefore in
uffn6saing thS onaration of 3
In,encbefl gan SET IN which tho noise
lias been almost entirely eliminated
PRIMARILY fine greatest SINGLE i'm
nroy Amenf in wireless has been the.
s,,bsfitntibn ~ telenhonee and So
called crystal detectors. for the CO.
.herer and relay used al firsf 0ner-
afors now receive Wireless signals "a ,as
q series DE- long and short sounds.
more or less musical produced in
telephone receivers. these sounds be-
Ing. Ineligible to the operators ais
the dots and dashes Of a telegraph
code. This arrangement is enor-
mously more sensitive and reliable
than the coherer.
Marconi High Power.
The most interesting type of
wireless station, to either wireless
engineers or the public, is undOubt-
eddy the high-power station designed
to work over great distances. A
number OF COMPANIES have made at
tempts to estaplisn trans-ocean COM
mercfal service, across the Atlantic
ID partlcular cut the only system
tnat mas proved q successlul compel
ilor OF tne submarine acapies sioI SER
VICE day anu nIght aciuss .ne Aian-
TIC IS the Maroon, VIII = lts nsn-
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