Tests on low power with Tasmania
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June 1923, p.22.
THE AUSTRALASIAN WIREL E S
E - .
Tests on Low Power with Tasmania
By H. KINGSLEY LOVE, Melbourne
OME 12 or 18 months ago, when the The Stations taking part were:—
Transpacific Radio Tests were
mooted, it was thought in many quar-
3 J U--Mr, Ross Hull.
3 B Q—Mr. M. Howden,
3 B D—Mr. Cox.
! House for
ters that the chances were rather re-
2 B Y—Mr. Holst.
i Glectrical
mote. Recent tests, which have been
3 M C—Mr. Newman,
successfully carried out by Melbourne 3 A M—Mr. C. Dohrman.
experimenters, have backed the ori- 3 B M—Mr. H. K. Love.
ginators’ theory that we have not yet Bach station was allotted a four
solved the problem of ‘“Greatest dis-
tance with minimum power.”
letter code, which was used in place
of the usual call sign.
The receiving station was 7 A A, Mr.
dupplies
Iin the “8park” days, it would have CHEMTIIEHIAHN
BNQUERNIBI
S
Watkins, Hobart.
been classified as absurd if an experi-
The time of commencement was at
menter had ventured to express the
the conclusion of V I M’s Ocean Fore-
opinion that & 5 Watt output would cast, and the first station sent from
have been clearly read in Hobart. that time until 9.20.
The writer is of the opinien that the The Znd station commenced 9.20 and
experimenter, both in Australia and sent till 9.30, then each station 10 QOur Stocks include :
overseas, has done a great deal to for- mins,
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ward the investigation of very low This procedure was followed from
powered transmission. the 14th inst. until the 18th, INSULATORS
It can safely be concluded that, on In order that the tests should be
the basis of recent results, the Trans- conducted as an experiment of value,
ENAMELLED
|
pacific Test i8 sure to be a success. the input of each station was taken,
If this be so, where will it all end? and in all cases the transmitters were
Where do the very feeble waves peter adjusted 80 as to keep the input down WIRE
out?
The writer believes that if his de-
to 8 waitts,
Four of the stations were logged |
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ductions are proved correct, and the by Mr. Maclurcan, in Sydney. S.5.C. WIRE
Transpacific ‘Test accomplished, lower He reports that 3 M. C., whose input_
powered transmission to and receipt was 4 watts or thereabouts and radia-
from the United Kingdom will resolve
itgelf into merely a matter of time.
tion .6, was by far the strongest; while
the next strongest was 3 B. Y., whose
D.S.C. WIRE
To be called experimenters, we must input was 8§ watts and radiation .8.
be ambitious, even should it border on This goes to prove that low power
what we consider to-day to be absurd. sets carefully adjusted can do won-
QIR+~
It is not what we can do to-day, it is ders, All seven stations taking part
what we shall be able to do to-morrow, in these tests were successfully copied
that the experimenter must head to- in Hobart, cn a single receiving valve,
=
wards. Apart from the very excellent trans.
There are many who can canclusively mitting records—the reception was a
prove by figures a theory that low splendid piece of work. :
4 DU
power cannot reach beyond a certain In addition to C. W,, telephone was
limited distance—but how can we dfs- logged from many of the stations and
| D. HAMILTON & GO,
regard the practice? clearly understood.
)
Most theories are based on either None of the stations have been
practice or perhaps even on accident. operating more than about six weeks,
The following particulars of the Tas- and I consider great credit is due to
VD-1G- )G- D) D -G
manian tests which commenced at 9.8 them for the wonderful resuits obtain-
p.m. on 14/3/'23, will do more to help ed. Doubtless after a little more ex-
the experimenters’ cause than most perimenting, future tests will reveal
test books which have been printed to results even more encouraging.
date. : It will be of interest to intending
Mr. Ross Hull, of Melbourne, has contestants that an American Amateur
LIMITED
been the active organiser of the tests, Station hag been heard on a ship with- 283 Clarence St., Sydney
and it is largely due to his efforts that in 100 miles of the Queensland coast.
the scheme worked so smoothly from In the writer’s opimion, the Trans-
its inception. pacific test will be a great success!
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Page Twenty-Two JUNE, 1823.