"Microwaves" are radio waves.
The wavelengths of the signals used to broadcast radio and TV to household and automotive
radio and TV products are longer than the wavelengths of the signals used for point-to-point
microwave communication.
They're also longer than the electromagnetic energy used in the microwave oven to cook a turkey
in 13 seconds, and longer than the wavelength of the signals to the GPS receiver in your car.
They're also longer than the wavelength used to operate your cellphone, and longer than the
wavelength of the signals that bring 900 channels of satellite TV directly to the little dish on the
corner of your house.
If they are travelling throught the same medium, then no. They are both types of electromagnetic waves and so they travel at the same speed (in a vacuum, that velocity is around 300,000,000 metres per second).
AM station transmitters can operate at lower frequencies, allowing their signals to travel longer distances, especially at night when atmospheric conditions enhance propagation. The longer wavelengths of AM signals can diffract around obstacles and follow the curvature of the Earth, making them more effective for long-range transmission. In contrast, FM signals have higher frequencies with shorter wavelengths, which tend to travel in a more line-of-sight manner, limiting their range and effectiveness over long distances.
receive broadcast signals
Broadcasting stations use television satellites to send their signals around the world.
The waves used to broadcast radio signals are called RF waves and these generally lie in VHF and UHF band of electromagnetic spectrum.
Radio waves are the type of electromagnetic wave that carries television and radio signals. They have longer wavelengths than microwaves and shorter wavelengths than infrared waves.
TV broadcast signals are in the VHF & UHF radio bands, shorter than most of the radio bands but longer than the microwave band.
"Microwaves" are radio waves ... those with wavelengths of 10 centimeters or less.The wavelengths of the signals used for point-to-point microwave communicationare shorter than the wavelengths of the signals used to broadcast radio and TV tohousehold and automotive receivers, and also longer than the wavelength of thesignals to the GPS receiver in your car.Microwaves are shorter than the wavelengths used to operate your cellphone.The microwave range of frequencies (wavelengths) is used for the signals that bring900 channels of satellite TV directly to the little dish on the corner of your house.Here's an interesting factoid: Technically, the box in your kitchen that heats theleftover meatloaf in 13 seconds is not a "microwave" oven. "Microwave" officiallyrefers to frequencies of 3 GHz and higher (wavelength 10 cm and less). The handykitchen appliance operates at the frequency assigned to it, which in the USA is2.450 GHz (12.24 cm).
If they are travelling throught the same medium, then no. They are both types of electromagnetic waves and so they travel at the same speed (in a vacuum, that velocity is around 300,000,000 metres per second).
Television communication uses short wave radiation for communication. This is also used for radios. Most technology today relies on wavelengths which are overall reliable and efficient.
Television communication uses short wave radiation for communication. This is also used for radios. Most technology today relies on wavelengths which are overall reliable and efficient.
This is also the reason AM radio signals travel around buildings and hills better than light waves (or even TV signals). The longer wavelengths diffract around obstacles that the shorter wavelengths cannot, regardless of the type of wave.
Our perception of different colors of light is caused by the wavelength of light. Shorter wavelengths appear as blue or violet, while longer wavelengths appear as red or orange. Our eyes have specialized cells called cones that detect different wavelengths of light and send signals to our brains, allowing us to perceive color.
The relationship between antenna size and frequency is that as the frequency of a signal increases, the size of the antenna needed to efficiently transmit or receive that signal decreases. This is because higher frequency signals have shorter wavelengths, requiring smaller antennas to effectively capture or emit the signal. Conversely, lower frequency signals have longer wavelengths, necessitating larger antennas for optimal performance.
A satellite dish works to receive signals and burn them up at its burn point,due to the high strength of the signals it can work in doors because the signals can penetrate through the walls,"BUT" this greatly reduces the signal strength hence leading to low efficiency,and since it also sends out signals, weak signals will be sent out due to the effect of the walls and some other impenetrable metallic materials like lead and other heavy metals with high relative molecular masses.
Laser Diode. photo diode
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