What is the difference between am fm

AM is not expensive, and this makes it useful for long-distance transmissions. The transmitter and receiver components are also not complex makes it economical for usage. AM consumes more power for transmission as well as the reception.

AM signals require very high bandwidth, at times equivalent to that of the highest frequency. The signal is always interfered with noise, makes the quality always poor. However, it is most sought as it can be transmitted to longer distances.

The AM radio transmitters can transmit sound waves with a frequency range of up to 15KHz. But the receiver can reproduce the signals only up to 5KHz or sometimes even Less. AM signal transmission and reception can be affected by external factors.

Storms and Sunspots can duly affect the signal quality, usually with a lot of noise in the background. Frequency Modulation is the process by which the radio wave signal is transmitted by modulating the frequency. This method is considered to be the versatile modes of radio signal transmission and reception. It is indeed a fact that the amplitude changes in FM also, however, it is not noticeable as in the AM.

FM is most desirable for its signal quality. The transmitter and receiver components are complex, thus making it expensive. The functionality of FM is also not that simple. FM signals cannot travel long distances, for the fact that it requires many radio stations in between to receive and reproduce at every small distance.

More importantly, FM consumes less power. The geographical interference between two neighboring stations is also limited. The purpose of this blog is to give a brief overview of the main differences between AM and FM modulation and their main uses in the world of today.

The receiver detects changes in the amplitude of the carrier frequency and amplifies it to drive a speaker. Unfortunately, AM broadcasting is susceptible to distortion and harbours background noise making the sound quality poorer overall.

So why use AM? In addition to its signal remaining steady over large distances, it was, until recently, the cheaper option for broadcasting given its simplicity to implement. It is still used for radio stations globally, as well as walkie talkies which do not necessarily require crystal clear sound.

Next page: From the studio to a transmitter! The Speakers They've a lot to say — but how can they get their message across? More From The Speakers. There are a number of different frequencies which can broadcast radio waves. AM stands for Amplitude Modulation Imagine that you are on a boat in a lake and you want to send a signal to people on the beach. More to click Who Runs the Business? Who Puts It All Together?