New technique?



Edinburgh Evening News - Wednesday 14 September 1938

POST OFFICE ACTS SUN-SPOT THREAT TO RADIO SPECIAL STATION AND NEW TECHNIQUE

Measures to combat intense sun-spot activity, which is expected to
interfere seriously with world radio communications in 1940, were
mentioned by Major G. C. Tryon, the Postmaster- General, at Newcastle
to-day.-

He said that the Post Office, following consultation with the American telephone authorities, was constructing a special radio receiving
station. After long research, they had decided that the adverse effects
of sun-spot activity, which had been viewed with grave concern, could be
offset by adopting an entirely new technique in the reception of
shortwave transmissions.

ON PILES IN MARSHLAND
A building erected on 150 concrete piles, each about 80 feet deep, would shortly be completed on marshland near Rochester, It would accommodate
six receivers for 12 circuits. The aerial system, consisting of 16
separate aerials, would be erected to face America. It was hoped that
the station would be in use early next year.

[Note.—On occasions of great sunspot activity, the conditions in the
upper atmosphere vary violently, giving rise to extremely bad short-wave propagation conditions, and may even result in complete cessation of
short-wave signals, Such activity occurs in cycles of approximately 11
years. The new type of receiving aerial system is bound up chiefly with
the use of a number of receiving aerials suitably spaced in the
direction of the incoming signals.]

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