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Mainly because at the time when the TV channel spectrum was being set up, a
microwave receiver would have filled a 7-foot equipment rack, and would have
cost maybe ... I'm guessing ... 10 to 50 times as much as a VHF/UHF TV receiver.
Before transistors came to the consumer-equipmenmt industry in the mid-1950s,
and integrated circuits 10 years later, there was never a radio that you could hold
in your hand, or a TV that you could hang on the wall. And GPS ... fageddaboudit!
What else can I help you with?
Do satellites normally use microwaves or radio waves?
Microwaves are radio waves.Most satellites communicate in microwave radio frequency bands.
Do car keys use radio waves?
yes,they do use radio waves
What do radio waves bounce off?
Radio waves are reflected by many solid objects, such as wood, stone, and notably metal, allowing the use of microwaves in radar applications.Also importantly in broadcast radio, the ionosphere (an upper layer of the Earth's atmosphere) can bounce signals back down to locations beyond the line-of-sight horizon.
What is one common use for infrared waves radio waves and microwaves?
U wanna know abt IR rays......... just visit the page: http://www.getgyan.com/show/146/Infra_Red_Remote_Control_Extender Also check: http://www.getgyan.com/show/2525/Semiconductor_Basics
What is a radio wave?
Radio waves are electromagnetic waves. The radio waves have the longest wavelengths in the electromagnetic spectrum. A radio wave has a much longer wavelength than does visible light. We use radio waves extensively for communications.
Do satellites normally use microwaves or radio waves?
Microwaves are radio waves.Most satellites communicate in microwave radio frequency bands.
What type of rays do cellphones and ovens use?
They use electromagnetic waves. cellphones use radio waves while electric and microwave ovens use infrared and/or microwaves
What does wireless network use a transmission medium?
Electromagnetic waves, kind of like radio waves or microwaves.
Do microwaves use microwaves?
Microwaves are radio waves with frequencies above 3 GHz. They are used to communicate great volumes of information over distances up to 100 miles, at data rates up to several hundred megabits per second per carrier. Certain high-power devices use UHF radio waves to boil water and heat meatloaf. They are marketed under the generic name "microwave ovens" and referred to as "microwaves" by the population at large, even though they use radio waves at 2.45 GHz and, technically, fall 550 MHz short of rights to the title.
Do regular cordless phones use microwaves?
No they do not they use radio waves because they need to travel alot shorter distances.
Why is the prefix micro used to describe microwaves?
The prefix "micro-" is used in microwaves to indicate that the wavelength of these waves is in the range of micrometers, also known as microwaves. The term microwaves distinguishes these electromagnetic waves from other types of waves, such as radio waves or infrared waves, based on their specific wavelength range.
Can you communicate through microwaves?
No, microwaves are a form of electromagnetic radiation used for cooking food in microwave ovens. They are not suitable for communication, as communication typically involves the use of radio waves at different frequencies.
What types of waves do cell phones use?
electromagnetic radiation in the microwave range some times cell phones use 50% uses and 50%health prombles overtimes don t uses
What kinds of waves do satellites use to transmit their locations to global positioning systems?
very short radio waves or long microwaves (1.2-1.6 GHz). It can go either way.
Do radio waves have more energy then microwaves?
Nope. Radio waves have a long wavelength, which causes them to carry little energy. For future questions about energy and waves, use the formula E=h(c/lambda). E is the energy of the wave, h is plank's constant, c is the speed of light (3x10^8), and lambda is the frequency. Have fun! ^_^
What kind of waves are used in a microwave oven?
Microwave ovens use electromagnetic waves called microwaves to heat food by causing water molecules to vibrate and generate heat. The microwaves are absorbed by the food and penetrate into it, heating it quickly and evenly.
Which waves are transmitted by a television remote control device?
They most use infa red but they use wireless for the more recent technology.
