What is FM band radio ?

Please tell me about FM/ AM radio. What these abbreviations FM/ AM stand for?

i think they told you

regards x kitti x

AM modulates the amplitude of the radio wave to make the signal (Amplitude Modulation); while FM modulates the frequency (Frequency Modulation).

Terms used in Radio Signal Broadcasting. FM = Frequency Modulation. AM = Amplitude Modulation.

AM- Amplitude Modulation

AM radio technology is simpler than FM radio and DAB. An AM receiver detects amplitude variations in the radio waves at a particular frequency. It then amplifies changes in the signal voltage to drive a loudspeaker or earphones. The earliest crystal radio receivers used a crystal diode detector with no amplification.


FM-frequency modulation


The term "FM band" can upset purists, because it conflates a modulation scheme with a range of frequencies. It is effectively shorthand for 'frequency band in which FM is used for broadcasting'. The exact range of frequencies used varies around the world, but always falls within the VHF part of the radio spectrum. The term "VHF" was previously in common use for "FM" within the EU. ("UKW," which stands for "Ultrakurzwellen" in German, meaning "ultra short wave", is still widely used in Germany.)

FM is Frequency Modulation.

AM is Amplitude Modulation.

These are the two commercial methods of delivering radio content.

There are also Short Wave, TV/UHF., and lots, lots more.

Big subject..

No offense to the other answerers nor the questioner. But a lot of your questions can be answered without waiting, if you'd search the previous Yahoo Questions. It's that search bar just at the top of the page under "ASK. ANSWER. DISCOVER." This question has been asked and asnwered many times.
-a guy named duh

AM/FM - Amplitude Modulation/Frequency Modulation