
Originally Posted by
Justloadit
Analogue electronics is extremely difficult to master, one of the major problems of analogue as well is switching noise along with temperature drift.
A simple example is the 50Hz hum on audio amplifiers, if your grounding and wire routing are not perfect, you hear the hum in the loudspeakers affecting the music quality.
Digital electronics can emulate analogue electronics, and whats more is that the information can be easily stored and reproduced, and it can be sent thousands of kMs away in an instant, not so with analogue. Whilst RF is an analogue source, it is still influenced my outside factors such as connections, weather and obstacles. A good example of this was the use of LW (Long Wave), SW(Short Wave), AM(Amplitude Modulation), in which the information was sent via the amplitude, it was easily interfered with any EMF, such as static, lightning, alternator winning, and even the spark from your petrol engine, where as FM (Frequency modulation) is a combination of digital with analogue. That is the information content is transmitted by varying the frequency and not by the amplitude. This makes it very rugged form of analogue data transfer.
Unfortunately analogue still plays a major role in electronics today, in that almost all sensors are usually an analogue source, which is then converted into a digital value, to be used by microprocessors and computers. These sensors range from pressure, temperature, magnetic field, heart beat pulse, and many thousands of other sensors.
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