Theory of determination of ultra-radio frequencies by standing waves on wires

This paper furnishes the theoretical background for the method of frequency- standardization employing short standing waves on parallel wires. The three essential differences between the parallel-wire system employed by the Bureau of Standards for frequency standardization and the classical system are these: High-frequency voltages are impressed on the wires instead of being caused by discharges originating on the wires; the waves produced are continuous instead of being damped; an electron-tube generating set being substituted for the spark-gap circuit; a current- indicating instrument is used instead of a device for indicating voltage nodes.