Evening star., 1923-05-06

Cooper, But day by day and month
by month, as 1t goes into erect.
broadcastlng should become more and
moro efficient. One big thing already
accomplished Is that American manu-
facturera can now go ahead with the
designing and production of equip
meHt, with the knowledge that wave
lengths will be below 600 meters and
that broadCasting is headed toward q
definite goal.
Manufacturers are assured also
that in this broadcasting plan there
is no opportunity for a monopoly of
broadcasting wave lengths. because
into both Gloss and class Il wave
trary division of time. The wave
lengths between go and 2SJ class II
will be staggered throughout the
country. Wave lengths between
and $40 class 4 will be divided h. :
| fifty and allotted To the various dis
tricts throughout the United States.
This should create Il very high
class service. because il is planned
that no two class B broadcasting
stations shall operate on the same
wave length at any one time in the
entire country. 1t should be remem-
bered, however, that, while there can
| be many class Il stations. they will
all have specific time allotments. and
nifty stations Will work at once at
| different wave lengths"
Discussing the influence of the new
scheme of wave lengths uron radio
at sea. Mr.. Cooper says:
AT 400 meters there is break In
the wave-length band for marine
work. This is an international ship
wave length and cannot be changed
| but Ii is recommended that only a
minimum of traffic be carried on this
wave length between ship and ship
| and ship and shore.
AT $50 meters there is also n
IN ht,t ic
wave length it has been requested
| that ships remain silent between the
| hours of and IL. and that later
as fast as ships can be returned
| changed to above 500 meters The
| United States Shipping Board has
already sent out instructions to its
| ships and 1 believe the commercial
| companies are doing likewise.
! In radio, as in other arts, we must
most important. In radio we look
at communication between ship and
! ship and ship and shore and we find
that nothing else will duplicate this
Such q service cannot be figured on
| Purely dollar-and-cents basis, be-
| cause entering into this is the eIe-
ment of saving lives, and we mus,
place this communication first.
| During the Hoover conference il
was brought out that spark sets
!
| reference, and there has been some
| discussion about trying to find a WAY
70 eliminate spark sets. This, how
ever, must not he done, because the
! present radio law requires the car
! rying of radio when fifty or more
| persons are aboard ship, and the gov
| crnment cannot, or, at least, should
Tot. prohibit the steamships from
| carrying spark sets, because by SC
doing they would. as u result of the
| present patent situation. place steam
ship companies in position wherein
! they would be compelled to resor,
! to one company.
| Until such time as continuous
wave apparatus is opened up for free
: competition. we will undoubt ed :
have to bear with spark sets There
are two methods OF obtaining con.
tinuous wave transmission, but tht
best method OF obtaining reception
employs a vacuum tube controlled by
tie Radio Corporation, patents or
/ which are owned by the American
Telephone and Telegraph Company
| Mr.. Cooper says that the Hoove,
! conference illustrated In a new way
/ the Importance OF broadcasting ir
American life. and that both the gov
! ernment and private interests are
n1anifesting spirit of corporation
that will dissipate the rival ries which
! were tending to place the radio In.
dustry in jeopardy