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AM means Amplitude(=height) modulation, so the frequency stays the same and the message is coded into variations of the strength of the signal.
FM stands for Frequency modulation. Here the strength of the signal stays the same and the message is coded into changes in frequency instead.
What else can I help you with?
What are radios?
a device that converts radio waves to audio waves
What is the difference between a radio telescope and a light telescope?
radio telescope detects radio waves and a light telescope views light waves.
Do radio and television waves affect global warming?
No. Radio/television waves do not affect the temperature, but usage of radios and televisions definitely does.
Is a radio and example of radiant energy?
Yes. Radios use radio waves which are radiant energy.
What are uses for radio waves?
Regular household AM radios pick up stations on frequencies between 550 KHz to 1.7 MHz . . . wavelengths between 176 meters and 545 meters. Regular FM radios pick up stations on frequencies between 88 MHz and 108 MHz . . . wavelengths between 2.8 meters and 3.4 meters. 'Short wave' radios, taxi radios, police radios, CB radios, firetruck radios, aircraft radios, weather radios, satellite radios, toy walkie-talkie radios, cellphone radios, computer WiFi radios, cordless telephone radios, garage door opener radios, Bluetooth radios, 4G iPad radios, and microwave oven radio transmitters all have their own separate frequencies/wavelengths that they operate on, so that they don't all interfere with each other.
What are the differences between radio waves and micro waves?
There is no difference. Microwaves are radio waveswith any frequency above 3 GHz.
What is the different between radio wave and electromagnet wave?
No difference at all. Radio waves are one of many types of electromagnetic waves.
Were there radios in 1851?
No. Radio waves were discovered around 1880. The first radio stations began about 1920..
Do computers use radio waves?
Absolutely. Computing is highly integrated into radio frequency (RF) type communications. Examples of RF integration include Bluetooth, WiFi, and RF peripherals such as the mouse and keyboard.
What is the difference between radiography and radiologist?
One is the study of radios (radiography) and radio style waves where as the other is the person who studies radios. A radiologist studys radiography or a radiographier studies radiography Radiologists also have a medical degree such as a Doctor of Osteopathic Medicine (D.O.) or a Doctor of Medicine (M.D.)
What devices uses radio waves?
Radio waves are used to help transmit signals between two devices.Some devices which use radio waves are:RadiosTelevisionsMobile (cell) phonesCordless telephonesNavigational devices (such as GPS and satellite tracking)RadarRadio-tuned clocks and watchesRadio telescopes
The main difference between a radio wave and a light wave is its?
The main difference between a radio wave and a light wave is their wavelengths. Light waves have shorter wavelengths compared to radio waves. Additionally, light waves are part of the electromagnetic spectrum that can be seen by the human eye, whereas radio waves are typically used for communication and have longer wavelengths.
