抄録
At the outbreak of the Pacific War, the Japanese army was way behind in the development of radio weapons. Therefore, when they knew American and British forces had used radio weapons, the Japanese army held a research examination of radio weapons in the department of the army ordnance. This material introduced the report in the research. The report was mainly connected with radio weapons related to airplanes and showed detailed explanations about American, British, and German conditions with regard to radars, guardradars, and induce implements, and then it emphasized the importance of radio weapons in modern wars. And let me add that the Japanese army, based on this report. summoned scholars and students, for example, Dr.Okabe in Osaka University, and succeeded in completing radars and guardradars around the autumn in 1943.
