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What types of waves do cell phones use for communication?
Cell phones use radio waves for communication.
What waves are used in cell phones for communication?
Cell phones use radio waves for communication.
What do cell phone and radar both work using?
Both cell phones and radar systems use radio waves to transmit and receive information. Cell phones use radio waves to communicate with cell towers, while radar systems use radio waves to detect the presence, direction, distance, and speed of objects.
How can you talk through cell phones?
Cell phones use a communications technology very similar to that used in old radio and in today's TV broadcasts. Your voice is digitized into a UHF (higher than 800MHz) radio wave (the wave is like regular flash-light but you can't see it.) Each cell phone must interact with a cell tower in the local area (cell phones cannot transmit over any great distance.) The cell tower is wired into the local providers network and the provider itself sends your call (voice) to the other end so the person you are calling can hear you.
Do cell phones use transverse waves or Compressional waves?
They use micowaves, so they are transverse (def. oscillations are perpendicular to the direction of wave propagation).
Why do cell phones have very short antennas?
Cell phones use radio waves travelling at the speed of light with a typical frequency of 800 MHz, which is ten times greater than FM radio frequency. Due to shorter wavelengths, the cell phones use very short antennas.
What did people use before cell phones where invented?
hardwired phones, CB radio, letters, telegrams, visiting, etc.
What did people use to communicate in the 1930s?
they used TV and they also used the radio they had no cell phones
What type of waves to cell phones use?
Radio, i.e. electromagnetic. They are simply two-way radios.
Is it ilgle to listen to a police scanner?
you cant. doing so requires special equipment more advanced than a police scanner. police in some areas use cell phones over their radio for privacy issues. for example if police are busting a party for underage drinking, they use cell phones to communicate so that anyone who has a scanner cant warn everyone to run or not answer the door. police scanners use radio waves, cell phones are on a different frequency. cell phones now also use encryption.
Why is the radio's of the 1920 still important today?
The radio is important today because we still use it to contact people in the world other than cell phones.
Tactical hand-held radio transceivers cell phones satellite phones and personal locator beacons (PLBs) are devices you could use for electronic communication?
True
