The Mellette County pioneer. [volume] (Wood, Mellette County, S.D.) 19??-1971, 1922-05-26

ticular direction. This discovery will
remove the objection that cOnversa-
tons can be overheard by those for
whom they are not intended.
The only commercial use for which
wireless telephony has so far been
sanctioned in this country is that of
establishing a communication between
the Bar lightship in the Irish channel
and the offices of the MerSey docks
and harbor board in Liverpool. In
accommodation is conducted almost
every hour Of the day with this APP
paratus by men who have had no spe-
cial training, and without any inter
ference with the wireless service con-
Quoted at the mouth of the Mersey by
the Seaforth station belonging to the
British post office. 1t is absurd to
think that this Is the only place
where a useful service can be per-
formed by wireless telephony.
l need hardly dwell on the growth
Of wireless telephony in connection
with aerial communications. ! be-
lieve l am right in stating hat every
British machine regularly flying be-
tween London and the continent has
been fitted by the MarcOni company
with the wireless telephone, and we
have numerous instances where these
instruments have contributed to the
safety Of the services, and performed
other valuable functions.
We have also demonstrated to one
Of the railways the possibilities Of
wireless telephone communications as
an auxiliary to the ordinary telephone
lines, and 1t may be that now govern
ment control has been removed from
railway operations, some progress will
be made along the lines indicated by
us.
l have suggested that the day has
not arrived for the so-called pocket
wireless set. The sensitiveness of
wireless receivers has been SO greatly
increased in recent years that 1t is
possible I've now to possess portable
apparatus capable of receiving si~nals
from high-pOwered stations many hun,
dreds of miles distant, but this is quite
q different matter from transmitting
signals. For wireless transmissions II
is still necessary to raise a wire 8
considerable height above the rams
mitter, and If serious distances have
to be covered IT is also necessary tC
have q source of electrical power
greater than can be at present con
veniently carried by an individual
How neal we have approached the
ideal of a portable transmitter was
demonstrated by the Marconi com,
pany a few months ago when the Lon.
don fire brigade conducted wireless
telephone communications between
one Of their tenders on Putney Eeatl
and their headquarters at Southwark
a distance Of some seven or eigh,
miles. In this case the aerial wire was
hung from the branches of a small
tree near the roadside, and the an
paratus employed was stored in a
small space at the back of the vehicle
One thing is certain, the science OF
wireless telephony will not stand still
Like the ordinary telephone, it Is pass
ing through a period when it lacks Off
cial encouragement, and is depend
ent for its salvation entirely upor
those who are engaged in It's develop
ment.
In 20 years the mysterious all-per
vading ether will be surging with hu
man speech conveyed by ether waves
Whispered conversation with friend.
In lands as remote as Australia viii