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repeater Definition

re·peater (-ər)

noun

  1. a person or thing that repeats
  2. a watch or clock which, upon activation of a spring, will strike the time, sometimes to the nearest minute
  3. ☆ repeating firearm
  4. ☆ a person who has been convicted a number of times for violating the law
  5. ☆ a person who fraudulently votes more than once in the same election
  6. ☆ Educ. a student who fails a course or grade, and then repeats it
  7. Math. repeating decimal
  8. ☆ Telegraphy a relay used to correct distortion and restore the strength of electrical signals

repeater Telecom Definition
A device that amplifies, reshapes, and retimes an input digital signal for retransmission. In an electrically based system, the repeater essentially guesses the binary value (1 or 0) of the attenuated incoming signal, including any accumulated noise, based on its relative voltage level and the relative time, and regenerates a stronger signal of the same value without the noise. The repeater also reshapes and retimes the signal, essentially redefining the distinct bit values and restoring the bit pace. In combination, these processes considerably enhance the signal quality, as compared to the simple amplification process performed by an amplifier. In a fiber optic transmission system (FOTS), the repeater comprises a light detector and a light source, positioned back-to-back.The detector receives an attenuated optical signal, converts it to an amplified electrical signal, reshapes and retimes it, converts it back to optical signal, and retransmits it. Such optical repeaters are characterized as being optical-electrical-optical (OEO) in nature.A repeater also may perform other signal processing functions. A satellite repeater, for example, also performs frequency translation, or frequency shifting, in order to differentiate in frequency the uplink and downlink signals, thereby to avoid their mutual interference. The spacing of repeaters is sensitive to a variety of factors, including the specifics of the transmission medium and the frequency of the carrier signal. See also amplifier, attenuation, and signal.
repeater Usage Examples

Converse of object

  • buffer: A " buffered repeater " operates at the level of whole data packets.
  • use: At Rutgers we have a single Ethernet that spans three buildings, using repeaters.
  • have: Instead of having four repeaters, we can have three with two interconnecting fibre-optic segments, each only 1km in length.
  • nest: It's an article about using nested repeaters bound on to a DataSet with a relation.
  • make: The site is currently occupied by the French firm, Alcatel, which is successfully making repeaters there.

Adjective modifier

  • soft: High-resolution X-ray satellites have resolved a point source near the center of N 49, the likely X-ray counterpart of the soft gamma-ray repeater.
  • first: This was one of the first military repeaters to have a bolt action breech mechanism and a tubular magazine under the barrel.
  • simple: At the moment, simple repeaters do not report any statistics.

Modifies a noun

  • amplifier: The pulse and bar signals are inserted in the cable at the position of the last repeater amplifier.
  • sign: Where the speed limit is greater than 30mph the motorist is normally reminded of the speed limit by the use of smaller repeater signs.
  • station: Where no suitable exchange building existed, a repeater station in a small brick building the size of a garden shed was built.
  • mode: This may have been a configuration problem as the test rig includes two wireless routers in repeater mode to extend the range.
  • system: Not a good choice for a repeater system on a mountain top which is meant to cater for stations in valleys.
  • site: It was the second time in three days that planes had struck cable repeater sites in the south.

Noun used with modifier

  • mph: Can I have 30 mph repeater signs put along my street?
  • wireless: Add wireless repeaters for distances up to 1.7 miles ( 2.7 km ).
  • cable: It was the second time in three days that planes had struck cable repeater sites in the south.
  • speed: There was strong support from the floor for more speed limit repeater signs.
  • limit: There was strong support from the floor for more speed limit repeater signs.
  • signal: Most Volvo's do not already have a wiring harness in the fender for turn signal repeaters.

Browse dictionary entries near repeater

  1. ‹ repeatedly
  2. ‹ repeated
  3. ‹ repeat dial
  4. ‹ repeat
  5. ‹ repeal
  6. ‹ repayment
  7. ‹ repay
  8. ‹ repatriate
  9. ‹ repast
  10. ‹ repass
  1. repeating ›
  2. repeating decimal ›
  3. repeating firearm ›
  4. repel ›
  5. repellent ›
  6. repelling ›
  7. repent ›
  8. repentance ›
  9. repentant ›
  10. repeople ›