One of the first researchers to detect and measure the stationary waves in the cable produced by direct coupling (resonance) with coatings of the Leyden jar was Sir Oliver Lodge, entitled "Experiment With Discharge From the Leyden jar" (1891 ). June 1, 1894, Oliver Lodge, the Royal Institution lecture, delivered "The work of Hertz and some of his heirs." Two years after college high frequency and high potential Tesla and five years after Hertz signal, the transmission Lodge held on August 14, 1894. It was years before Marconi's early experiments. Lodge is in a meeting of the British Association for the Advancement of Science at Oxford University. Also in 1894, Lodge state that clearly predicted the importance of Alexander Muirhead wire transverse Hertzian wave transmission. A convenient method of generating stationary electric waves on wires is one of the common characteristics Ernst womanizer, womanizer and call arrangements. In fact, the advent Lodge and Hertz, while Edouard Sarasin and Lucien de la Rive gave improved form.
On that day in August 1894, the Lodge indicates acceptance of Morse code signals through radio waves using "coherer". He then increase the Branly coherer by adding "jerk" which dislodged clumped filings, thus restoring the sensitivity of the device. In August 1898 he received U.S. Patent 609,154, "Electrical telegraphy", which makes a wireless signal using a Tesla coil or coils for the transmitter and the detector coherer Ruhmkorff Branly. This patent is the use of tuning the concept of "syntonic". In 1912 the Lodge sold the patent to Marconi.
In 1894 showed that Branly coherer Lodge can be used to send telegraphic signals, and that the file does not need to stay "cohered" after cessation of electrical oscillations, it creates an electro- mechanical "bug" the principle of the ordinary "bell", or an electric doorbell, hammer is caused to press the glass tube during the electrical oscillation continues. The filing takes place mostly in the ordinary telegraph key in the circuit. In normal circumstances key to open, in front of a closed lock electrical oscillations. Thus, by opening and closing the lock for a period longer or shorter, the signals in accordance with the dots and dashes can be developed. In other words, by establishing an electric oscillation period in accordance with dots and lines, the message can be transmitted from the transmitting station, and if, at the receiving station, the recording instrument (controlled The coherer), as usual Morse register, provided, record the message in dots and lines can be obtained. Dr. Lodge is in fact using a wire run through continued clockwork.
In 1894, with the help of filing tube Branly, Lodge gave a few demonstrations, one in June at the Royal Institution in Oxford and one in August in Oxford, for the British Association, using a Hertz oscillator for transmitting signals, using a Morse key associated with the sender coil and the marine galvanometer Thomson to accept it, send signals from one room to another room through walls, and more. Lodge sent them also in terms of four Liverpool College, but he applied very little power and do not try for large distances. At that time, Dr. Alexander Muirhead hit with a practical application to telegraphy, and when in 1896 Sir William Preece said at a meeting of the British Association (as happens in the laboratory) in Liverpool that an Italian man (after not unknown time) drew the Post Office secret box, Lodge practical know what the box should contain, and soon after (same day) he showed some friends recording tools Morse, very rough work plan. Mr. Marconi and Sir William Preece together around the world interested in the subject; large force applied to the sender, and financial problems become critical. However, the U.S. Patent Office gives patent Lodge telegraph based on his work, published in 1894, after evidence that this book has reached America in or before 1895.
