0
How long should an antenna be to absorb radio waves well and red light?
Wiki User
∙ 14y ago
A vertical antenna, like a piece of wire, connected directly to the radio, works well if it's
1/4 of the wavelength of the signal being received. If it's a horizontal wire hanging between
a couple of trees, with a coaxial cable connected to a gap in the middle of the wire, then it
works best when its overall end-to-end length is around 1/2 of the wavelength.
1/4 wavelength in feet is around: (246) divided by (frequency of the signal in MHz)
1/2 wavelength in feet is around: (492) divided by (frequency of the signal in MHz)
The frequency of red light is around 462,000,000 MHz. So for good efficiency, the
half-wave antenna should be about 0.00000107 foot long, or 0.0000128 inch.
If you have a radio receiver capable of tuning to the frequency of red, I'll personally
come help you trim the half-wave antenna to pick it up. In fact, I'll build you a by-George
100-element Yagi !
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What should be the position of the antenna with respect to the direction of the transmitted radio waves so that the properly tuned in radio gives the better reception?
The antenna should be parallel to the electrostatic field of the wave, and perpendicular to its magnetic field and to its direction of propagation.
What can transformation can occur in a radio antenna?
The radio antenna converts electromagnetic radiation to electrical energy
Why is radio Not picking up radio stations in a Renault?
Could be broke, or might just be a Hyundai radio. Check antenna, and cable from antenna to radio.
When you key up your mic the red antenna light does NOT come on as soon as you talk it does Why?
Some transmission modes send no power to the antenna if you are not speaking. If the antenna light is sensing radio frequency energy, it will come on only when you speak. This applies to single sideband (SSB). AM and FM transmitters send power to the antenna all the time.
Do you have to have an antenna for a CB radio?
Only if you want the radio to work.
Why are gain produced in antenna?
A simplified explanation is that the antenna does for radio waves what a lens does for light because of physics.
How do you make a antenna for my mp3 players FM radio?
If the player enables radio it should use either an in built antenna of use the earphones as an antenna. Nothing more to buy or build.
What telescope uses an antenna and receiver to study the stars?
A radio telescope has an antenna and a receiver to study the stars. Radio waves are part of the same radiation spectrum as light, and they are emitted by many celestial bodies. Analysis of radio emissions can give us information over and above what can be obtained from light.
What telescope uses an antenna and a receiver to study the stars?
A radio telescope has an antenna and a receiver to study the stars. Radio waves are part of the same radiation spectrum as light, and they are emitted by many celestial bodies. Analysis of radio emissions can give us information over and above what can be obtained from light.
What should be the position of the antenna with respect to the direction of the transmitted radio waves?
A dish antenna must face the arriving waves.
What should be the position of the antenna with respect to direction of the transmitted radio waves?
A dish antenna must face the arriving waves.
How do you say radio antenna in German?
Radio antenna can be translated as: Funkantenne Radionantenne
What are some features I should look for in a portable radio at a radio store?
Look for a strong antenna that resists bending. If you live nearby your favorite tower, then consider an internal antenna.
Does a 2000 4runner have a fuse for the power antenna?
Should be the same fuse as the radio
What should be the position of the antenna with respect to the direction of the transmitted radio waves so that the properly tuned in radio gives the better reception?
The antenna should be parallel to the electrostatic field of the wave, and perpendicular to its magnetic field and to its direction of propagation.
What is wrong with the radio reception on a 2007 Camry Radio?
Bad antenna? Radio needs to be trimmed Bad antenna? Radio needs to be trimmed
Where is the button for the power antenna on a 1995 Mercury Mystique located?
There is no button for the power antenna it works by it self if you turn on the ignition and your radio is on the antenna should come up by it self, if problem doesent go away it could be that ur radio isent hooked up to the antenna (yellow wire) or your power antenna blew.
