in the earlier days when the radio was just being invented, people would have a radio to listen to weather reports. now a days we use them to listen to music and win cool stuff,
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This is the transmission and distribution of information to learning institution through the radio.
The best educational station is National Public Radio (NPR). It is usually in the FM range 88-90.
the person next to uses the radio to listen to it
it doesn't, it uses microwaves
bluetooth is an open wireless protocol for exchanging data over short distances. it uses short length radio frequencies. bluetooth uses a radio technology called frequency-hoping spread spectrum.
RADAR (RAdio Detection And Ranging)
1930
Remote controls use both infrared and radio frequency technologies. Your typical TV remote uses infrared and your typical car remote uses RF.
the person next to uses the radio to listen to it
A small battery AM or FM radio uses as little as 3 v at 10 mA, that is 0.03 Watts. A typical DAB radio might used 6 v at 250 mA, which is 1.5 Watts, or 40-50 times as much.
A typical price for a Motorola radio microphone would be around twenty dollars. Depending one where one goes though, one can buy a radio microphone as cheap as 11.99.
it doesn't, it uses microwaves
bluetooth is an open wireless protocol for exchanging data over short distances. it uses short length radio frequencies. bluetooth uses a radio technology called frequency-hoping spread spectrum.
idont know
anybody on earth
hearing FM and am news in radio
Radio-sodium is used to check action of medicines
Bluetooth uses short wavelength radio transmissions in the ISM band from 2400-2480 MHz
The radio frequency portion of the electromagnetic spectrum uses radio telescopes.