LETTERS BY WIRE.

New Zealand Herald, Volume LXVIII, Issue 20819, 11 March 1931, Page 11

LETTERS BY WIRE.

FACSIMILE TRANSMISSIONS. A confident prophecy that within the lifetime of most people telegraphy would be so cheap that it would take the place of ordinary business letters to such place:; as Australia or China, was made at a demonstration of the Stenode Radiostat system of multiple telegraphy in London recently by Lieutenant-Colonel Adrian Simpson. "The time is coming," he said, "when it will be possible to send a telegraphed facsimile letter which will be delivered at the other end within 24 hours or less by the ordinary postal organisation. The result must be an economic revolution in communication."

The system of multiple telegraphy which, he said, would bring this about, is a development of Dr. James Robinson's Stenode Radiostat wireless invention, which gives selective reception far in ad vance of general practice. At the demonstration messages were sent automatically over about 240 miles of land linii to Bristol and thence back again to London, where they were recorded on paper tape by Creed receiving instruments. Transmission took , place at about 80 words a minute, a speed higher than usual In commercial printer working. Three channels of communication were used on the one line without any "interference."