The radio war which is accompanying the naval, military and aerial operations in the European conflict is a necessary concomittant because intelligence has to be assailed as vigorously, as fortified positions. A report from the western front states that the Germans have resorted to the familiar method of jamming the B.B.C. news broadcasts on occasions when items of importance were on the air. A recent case involved a reference to movements of the captive American merchantman City of Flint which failed to be in reception owing to German interference tactics. One explanation is that the Germans did not desire the news of the vessel's move-by British trawlers and Powerful radio stations from being direction finders, The huge stations in Europe today—many of them of tremendously increased power of emission since the outbreak of war—ar. considered first-class direction finders for enemy aircraft. It is only necessary to obtain a position of one of these stations and the rest is easy by calculation. Excluded from this yuh ibility and usefulness to the enemy is the B.B.C. station at Daventry, which daily pours out its messages and programmes immunized from enemy action by the inventive ability of its technicians who are reported to have solved the problem long before the war started. An ingenious system provides a method for passing an invading plane from one direction to another and producing a confusion which reduces to futility any effort to use the station as a guiding. point. Naturally, the system is being kept secret, but it enables the B.B.C. to broadcast 24 hours a day undisturbed by the thought that enemy aircraft ' may be exploiting the directional opportunities otherwise afforded. Germany is reported not to be in possession of the system, and, therefore, broadcasts in spasms to protect the stations from being used by enemy aircraft. The result has been some extremely important information "scoops" spread throughout the world presenting Germany with a huge problem of answering them without imperilling security. Jamming is probably the latest answer.
Text read from the printed page and cleaned; old type leaves the occasional error.