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Encyclopedia > Carrier shift

In telecommunication, the term carrier shift has the following meanings:


1. In the transmission of binary or teletypewriter signals, keying in which the carrier frequency is shifted in one direction for marking signals and in the opposite direction for spacing signals.


2. In amplitude modulation, a condition that results from imperfect modulation in which the positive and negative excursions of the modulating envelope are unequal in amplitude.


Note 1: The carrier shift results in a change in carrier power.


Note 2: The carrier shift may be a shift to a higher or to a lower frequency.


Source: from Federal Standard 1037C and from MIL-STD-188


  Results from FactBites:
 
carrier shift: Definition and Much More from Answers.com (261 words)
In the transmission of binary or teletypewriter signals, keying in which the carrier frequency is shifted in one direction for marking signals and in the opposite direction for spacing signals.
In amplitude modulation, a condition that results from imperfect modulation in which the positive and negative excursions of the modulating envelope are unequal in amplitude.
Note 2: The carrier shift may be a shift to a higher or to a lower frequency.
///MZ3.Net - UUC M roadster/coupe short shift kit (1847 words)
The carrier is a metal piece that attacnes to the top rear of the transmission and extends rearward into a rubber fitting behind the shift area.
The bottom of the shift lever is under the carrier and attaches to a selector rod which extends forward to the transmission.
Once the carrier is back in place, you should slip the UUC-provided new nylon cup over the ball of the shift lever, slide the cup into the hole in the carrier, and snap it into place as per the instructions.
  More results at FactBites »


 
 

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