This formed a local circuit at the transmitting station.
38 6), the insulated wires or plates being upheld by masts, its operation is as follows: - When the key in the primary circuit of the induction coil is pressed the transmitting antenna wire is alternately charged to a high potential and discharged with the production of high frequency oscillations in it.
Currents, and sounds were given out corresponding in pitch, and also to some extent in quality, with the sounds produced at the transmitting station.
Another reason assigned by the committee appointed by the Treasury in 1875 " to investigate the causes of the increased cost of the telegraphic service since the acquisition of the telegraphs by the state " is the loss on the business of transmitting Press messages, which has been estimated as at least £300,000 a year.
It was also recognized that what is required at the transmitting end is the establishment of powerful electric oscillations in the sending antenna, which create and radiate their energy in the form of electric waves having their magnetic force component parallel to the earth's surface and their electric component perpendicular to it.