A cable-suspended drill has a downhole system, known as a sonde, to drill the hole. Radio sonde, operated suspended from a barrage balloon. The logging tool, also called a sonde, is located at the end of the wireline. In late 1959, he and James Milford developed the Oxford-Kew ozone sonde. The return electrodes are located either on surface or on the sonde itself. In 1945, the communications security section became the rocket sonde section. Guide fins higher on the sonde travel in these slots and provide the antitorque. It was ruled by the Sonde Rajas under the Vijayanagara Empire and the Bijapur Sultanate. Sonde is either of two Bantu languages of the Democratic Republic of the Congo. The national chairman of the RCDS is editor of the magazine "Civis mit Sonde". Numerous different Radio Sonde systems were deployed by both the Army, Air Force and Navy.