The Birmingham age-herald., 1922-11-05
BRITISH ID TRY TRANSATLANTIC
 TRANSMISSION
Amateur Outfit Being Built at Manchester on Special Ll- cense by British
 Government

Can the amateur radio operators of this country maintain the su- premacy they established last year, when they successfully transmitted messages across the Atlantic ocean with the small amount Of power permitted them by the government! They will be given an opportunity to demonstrate their power during the 10 days beginning December 22 next, when the third annual trans atlantic test will be undertaken with westbound transmission for the same time in the annals of amateur communication.
 Last year the amateurs of this country sent Paul Cooley ever to Scotland with a super-heterodyne receiver for the purpose of proving conclusively to British amateurs that transatlantic communication with low power transmitters was perfectly possible. His success ex- ceeded all expectations.
 The success tf the undertaking was not confined to MT. Cooley, how ever, as several British amateurs also received their American coll leagues in a most surprising man ner. Tn the case of the British anna teurs the receiving equipment was almost exclusively based on radio frequency ampiification.
 Britain Lets Down Bars
 The astounding results obtained during 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 Man chester, was so exceptional that 1t convinced the British government the amateur was after all performing a very important function in the de- velopment of the radio art.
 As a consequence the British au- thorities have given the Wireless Society of Manchester permission to erect a special transmitting station for the purpose Of attempting to bridge the Atlantic from the east to the west with one kilowatt of power. The extraordinary license issued for this station specifics that no more than this amount of power shall be used and that the apparatus shall utilize continuous waves.
 Tn 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 Manches- ter society this rigid rule has also teer modified. and permission grant ca Tor the erection of a more efficient .'-T cf aerial for the purpose in
 @v-
 Aerial Already Erected
 's result of the permission work 'a' already begun on the erection the station. The aerial has already h"en erected on a plot of land one and a half acres in extent. loaned to the society by it's vice president !. H. Brown. This site has the ad- vantage of having supply Of alter nating and direct current in the Building on the ground.
 The aerial is supported on two masts, each eighty feet in height. The aerial itself is built upon star shaped spreaders with six wires The two end spreaders are made up of half-inch canes. lashed together in couples. and they form a six-pointed star The aerial Is braced with four other spreaders ar 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 dices, slotted to give the star like formation. The wire used is seven starnd No. 22, with core one eighteenth of an inch in diame- ter. The total amount of wire In the aerial is 660 feet, and in the lead-i in SIS feet.
 Water "Ground- Used
 After some discussion it was de- cided that a ground should be used in place of counter-poise aerial.