The Telegraph is a device which uses a telecommunication system electrical message is sent from one place to another. Originally sent by the cable that links contact and rely on a major electromagnetic powers, but the latter term to use wireless transmission method called radio telegraphy (wireless telegraph, telegraph or radio continuous wave CW said.) Working principle of the Telegraph When the pressure tap of a closed-circuit transmission occurs. Electric current, causing the power magnets around the coil in the receiver. Magnetic power will attract a lot of Nu-steel axis compound magnet. Cause the same rhythmic sound press the pedal tap, tap the sound is caused by the need to translate the signal into a signal telegraph messages.The code used for telegraph communications Morse code is a code that is generated in the telegraph system, the first by a point and encrypt communications and a point. Reassembly is the letter or number that we understand. For example, Morse code, we will come to a presentation. A ._ B _... C _._. D _.. E . F .._. G _ _. H …. I .. J ._ _ _ K _._ L ._.. M _ _ N _. O _ _ _ P ._ _. Q _ _._ R ._. S … T _ U .._ V …_ W ._ _ X _.._ Y _._ _ Z _ _.. This is an example of the code used in the Morse Telegraph communication.
การแปล กรุณารอสักครู่..