Science

posted by .

In __, the amplitude of the carrier wave is changed to transmit information; the frequency is not changed.

In __, the frequency of the carrier wave is changed

__ phones and __ phones use radio waves to transmit signals.

__ use electromagnetic signals from a base station

Communication __ enable radio signals to be sent from one part of Earth to another

The __ consists of satellites, ground-based stations, and portable units with receivers used to help locate objects on Earth.

  • Science -

    AM; FM; cell phones; cordless phones; radio and television; satellites; GPS system

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    The sinusoidal waveform can be varied by using which of the following parameters?
  2. Physics

    A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) …
  3. Physics: Wave Motion

    A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) …
  4. Physics

    A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) …
  5. Physics

    A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) …
  6. Physics:Wave Motion

    A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) …
  7. Physics

    The speed of a transverse wave on a stretched string can be changed by adjusting the tension of the string. A stationary wave pattern is set up on a stretched string using an oscillator set at a frequency of 650 Hz. How must the wave …
  8. Physics Helpppp

    Q11 a(ii)A sinusoidal carrier wave has frequency 500 kHz and amplitude 6.0 V. It is to be frequency modulated by a sinusoidal wave of frequency 8 kHz and amplitude 1.5 V. The frequency deviation of the carrier wave is 20 kHz V^–1 …
  9. science

    the waves above is an electrical signal resulting from a sound wave. how does the information in this electrical signal make it to your car radio, it is carried on an FM wave by modulating its frequency,is it carried on an FM wave …
  10. Physics help

    a wave with a frequency of 3.1 hz and a wavelength of 0.3 meters experiences a lengthening of wavelength to 2.6 meters what is the new frequency of this wave?

More Similar Questions