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- Amplitude modulation
- Frequency modulation
or
- Analog representation of the information
- Digital representation of the information
or
- Send information to be reconstructed as sound
- Send information to be reconstructed as graphics
Wiki User
∙ 9y ago
Wiki User
∙ 8y ago- news
- entertainment
- wi-fi
- bluetooth
- long distance telephone calls
- cellphone calls
- military communications
- railroad train control information
- police department dispatcher
- fire department dispatcher
- control commands for pacemakers and other implanted medical devices
- citizen's band radio
- "ham" radio
- etc.
Wiki User
∙ 14y agoInformation can be prepared for encoding onto a radio "carrier" either in its original analog form,
or after first being converted to a digital representation.
Once the native form of the information is selected, that information can be encoded onto the radio-frequency
signal by changing the carrier according to any pattern agreed to by the sender and receiver. Methods may
include amplitude modulation, frequency modulation, phase modulation, or variations and combinations, such as
DSB, SSB-SC, VSB, QPSK, PAM, NBFM, QAM, etc.
Wiki User
∙ 12y agoThe most common use of radio waves is to carry information
from one place to another.
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Which kind of waves are the longest Radar waves Radio waves Visible Light or Gamma Rays?
for wavelength, the longer of the two is visible light, but the longest type of rays are radio waves (some of them have a wavelength as long as a football field)
What properties make radio waves good for communicating?
The really nice thing about radio waves is that they will make the electrons in a piece of copper wire move; this means that they generate electric currents in the wire. In fact it works both ways: alternating currents in a copper wire generate electromagnetic waves, and electromagnetic waves generate alternating currents. The electric currents at "radio frequencies" (rf) are used by radio and television transmitters and receivers. I use frequencies of 145MHz (VHF), 14MHz (20m HF) and 3.7MHz (80m HF).
What kind of waves are gamma rays and radio waves?
Radio waves are electromagnetic waves and are a part of the electromagnetic spectrum. Other electromagnetic waves in the electromagnetic spectrum are microwaves, visible light, infrared, ultraviolet, x-rays, and gamma rays
What is advantages and disadvantages of cellular radio?
One advantage of a two-way radio is the fact that they can connect to each other over long distances. A disadvantage is the fact that other people on the same channel can listen to the conversation.
Why can two radio stations send signals out into the same space at the same time?
Radio waves are a type of electromagnetic radiation similar to visible light. If there were 2 light sources with different color light you would not have any problem seeing both colors. It is the same with radio waves on different wavelengths.
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
Radio and gamma rays are two types of what kind of waves?
Radio and gamma waves are two types of electromagneticwaves.
What devices don't utilize radio waves?
Garden spades and screw drivers are two devices that do not utilize radio waves.
The highest-energy waves in the electromagnetic spectrum are?
The ones used to transmit to subs underwater are a mile or two in length, but a wavelength equal to the Earth's diameter (8000 miles) is quite possible. (The sun can and does put out waves in excess of 1000 miles - and they can play havoc with transmission lines.)
Two examples of how waves transmit energy.?
1. Boat rocking in the waves of the ocean, 2. Earthquake knocking over a wall.
Compare between tv and radio?
TV and radio are a electronic media .The two area of communication radio and TV have much in common Both use electromagnetic air waves to transmit their signals. radio gives you more room for imagination varying from person to person as beautifull ,color ,rage,losses.Tv shows you much more you can see.
What are two What are facts about radio waves?
Radio waves travel at 186,000 miles per secondThey were discovered in 1865 by James Clerk Maxwell
Radio waves microwaves and ultraviolet rays have longer wavelenghts then visible light?
Gamma rays and radio waves are both electromagnetic waves. Radio frequency waves are a lower frequency, so they have a longer wave length.
Is it possible to transmit the digital signal using radio transmission without any loss?
The lossless of an analogous signal is not possible. The two things that will be present all of the time is dispersion, and attenuation.
What is the difference between primary waves and surface waves?
Ground waves are radio waves which travel along the earths surface while sky waves use the earths ionosphere to reflect signals to the desired destination
Which kind of waves are the longest Radar waves Radio waves Visible Light or Gamma Rays?
for wavelength, the longer of the two is visible light, but the longest type of rays are radio waves (some of them have a wavelength as long as a football field)
What properties make radio waves good for communicating?
The really nice thing about radio waves is that they will make the electrons in a piece of copper wire move; this means that they generate electric currents in the wire. In fact it works both ways: alternating currents in a copper wire generate electromagnetic waves, and electromagnetic waves generate alternating currents. The electric currents at "radio frequencies" (rf) are used by radio and television transmitters and receivers. I use frequencies of 145MHz (VHF), 14MHz (20m HF) and 3.7MHz (80m HF).
