BEAM WIRELESS.

Press, Volume LXIII, Issue 18903, 19 January 1927, Page 11

BEAM WIRELESS.

SECRECY SOUGHT.

TRANS-ATLANTIC TELEPHONY,

(BY CABLE—rBES3 ASSOCIATION—COFIMOIIT.) (AUSTRALIAN AND H.Z CABLE ASSOCIATION.)

LONDON, January 17

Announcing the erection of a supplementary station at Dundee to ensure greater clarity in trans-Atlantic telephony, Colonel Thomas ' Purvos, en-gineer-in-chief to the Post Office, says that he never claimed to guarantee secrecy, but special efforts were being made in that direction. Even on the beam system, such a wide "track'' was required that signals could easily be read.

Regular users of telephony should use code words and phrases, but he hoped to deviso means of cutting up words into fragments at the transmitting point and piecing them together again at the receiving end, thus baffling interception en route.

BEAM TESTS. POST OFFICE RETICENT. (Sydney- "Sun" Service.) LONDON, January 17. The Post Office rigidly adheres to its determination not to disclose the results of the beam tests with Australia, which are now covering 24 hours daily, until the engineers have exhaustively completed a full \yeek of tests, which are under the sole control of the Post Office engineers. Marconis state that they are confident of the outcome, because the testers worked in liaison with their own engineers during the'unofficial tests.

RESULTS DOUBTFUL. (AOatRALIAS AND N.Z. CABLE ASSOCIATION.) LONDON, January 17. The beam wirelest, tests over the week-end did not materially improve on the opening day's results. Though a speed of 200 words a minute was often exceeded, deductions for errors bring down the average. Department officials are giving close attention to these faults, it is intended after the tests on January 21st Ho analyse the whole results, and see if the contract stipulations have been achieved. This will take till the middle of next week. If the contract conditions have been fulfilled the service will then be inaugurated without delay.