New-York tribune., 1922-11-05
British to Try
Transatlantic
Transmission,
Amateur Outfit Being Buils
at Manchester ON Special
License Given by British
Government for the Test
Must UseC Continuously ave
transmitting Apparatus liz
Restricted to Kilowata
OF Power I'm the Antenna

RPA 0SAS AS
Restricted to Kilowata
of Power I'm the Antenna
/ Can the amateur radio operators of
this country maintain the supremacy
they established last year, when they
successfully transmitted messages
across the Atlantic Ocean with the
small amount Of power permitted them
| ny the government They will be
given an opportunity to demonstrate
their prowess during the ten days be-
| ginning December 22 next, when the
third annual transatlantic test viii be
! undertaken with Westbound trans
mission for the first time In the annals
OF amateur communication.
Last year the amateurs Of this eoun-
try sent Paul Cooley over to Scotland
| with super-heterodyne receiver for
the purpose Of proving conclusively TO
British amateurs that transatlantic
communication with low power trans-
mitters was perfectly possible His
success exceeded all expectations.
The success OF the undertaking was
| not confined to Mr.. Cooley, however,
as several British amateurs also re-
ceived their American colleagues in
|
of the British amateurs the receiving
equipment was almost exclusively
based on radio-frequency amplification.
Britain Lets Down Bars
The astounding results obtained dur
ing the second annual tests opened up
the eyes of the British authorities, who
have vigorously held down their
amateurs. The work Of w. r. Burne,
an amateur of Manchester, was so ex-
ceptional, that 1t convinced the British
government the amateur was after all
performing very important function
in the development Of the radio art.
AS a consequence the British au-
thorities have given the Wireless So
ciety Of Manchester permission to
erect special transmitting station
for the purpose of attempting to bridge
the Atlantic from the east to the west
extraordinary license issued for this
station specifies that no more than
this amount Of power shall be used
and that the apparatus shall utilize
continuous waves.
In Great Britain the restrictions
which have always been maintained
on amateur stations even specified
what kind Of aerial should be used,
and placed limitations upon It's size.
In the license given to the Manchester
society this rigid rule has also been
modified, and permission granted for
the erection of a more efficient type
of aerial for the purpose in view.
Aerial Already Erected
has already begun on the erection Of
the station. The aerial has already
been erected on plot Of land one
and half acres in extent, loaned to
the society by its vice-president, J.
H. Brown. This site has the advan-
tage of having supply of alternating
and direct current in the building on
the ground.
The aerial is supported on two maats,
each eighty feet in height. The aerial
| itself is built upon star-shaped spread
ers, with six wires. The two end
I spreaders are made I'D of half-inch
canes, lashed together in couples, and
then all six bound together so that
they form six-pointed star. The
aerial is braced with four other spread
ers at equi-distant points along its
| length.
| The lead-in wires were arranged in
the same manner, only in this case the
! wires were spread apart by three-ply
| disks, slotted to give the star like
formation. The wire used is seven
stranded No. %, with a core one
eighteenth Of an inch in diameter.
i The total amount of wire in the aerial
| is 660 feet, and in the lead-in 61S1
| feet.
Water "Ground" Used
| After some discussion it was decided
that ground should be used in place
of a counterpoise aerial. This be-
cause of the fact that there is water
at a depth of five feet in the field
where the station is located. The area
covered by the water is, roughly, four
! acres, and this is the extent Of the
| effective ground
| A great deal of rivalry has already
| shown itself in the preparations that
are being made in this country by the
| amateurs anxious to be the first to re-
ceive a British amateur station, and
there is every reason to believe that
prizes will be awarded to the first who
| is successful in receiving complete
| message from the Manchester station.
The American Radio Relay League has
practically completed its plans for the
system developed by the league.
The tests this year commence on
December IL, and the first ten days
will be confined to the transmitting ap-
| paratus of amateurs on this side of the
Atlantic. Those successful in getting
across to the British receiving anna
teurs will be used to transmit the re-
suits Of reception here from the Man
chester station.
While the exact times Of the trans
mission from Manchester have not yet
been arranged any radio fan who has
knowledge Of the continental code
will be able to take part in the tests.
The complete details Of all arrange
ments will be published as soon as they
have been completed.
Should the tests be completely sue
cessful regular two-way amateur
transatlantic system may be developed
similar in scope to the transcontinental
system now in daily use under the aus
pices of the American Radio Relay
League.
Football Came Broadcast
Union College. pioneer in radio
broadcasting in America, will send
out play-by-piay report Of the Union