Recent developments in radio‐transmission measurements

During the past year investigations have been continued at Boston, Massachusetts, with a view to securing and utilizing data giving an insight into the mechanism of radio transmission. In papers to he presented at the URSI meeting on May 1, 1931, Pickard describes an interesting correlation obtained by the use of the data which has already accumulated and Kenrick presents some of the apparatus-development and experimental results evolved during the past year. These results are therefore not presented in detail in this report but a brief outline of projects now at hand and the results obtained follows. A brief discussion of what we conceive to be some of the present problems of radio transmission-theory, the relation of the present observations to the general problem, and the means which should be employed to affect a solution is also included.