Encyclopedia > Baseband

  Article Content

Baseband

In telecommunication, the term baseband has the following meanings:

1. The original band of frequencies produced by a transducer, such as a microphone, telegraph key, or other signal-initiating device, prior to initial modulation.

Note 1: In transmission systems, the baseband signal is usually used to modulate a carrier.

Note 2: Demodulation re-creates the baseband signal.

Note 3: Baseband describes the signal state prior to modulation, prior to multiplexing, following demultiplexing[?], and following demodulation.

Note 4: Baseband frequencies are usually characterized by being much lower in frequency than the frequencies that result when the baseband signal is used to modulate a carrier or subcarrier[?].

2. In facsimile, the frequency of a signal equal in bandwidth to that between zero frequency and maximum keying frequency[?].

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



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Quioque, New York

... family size is 3.02. In the town the population is spread out with 22.3% under the age of 18, 8.0% from 18 to 24, 31.0% from 25 to 44, 21.9% from 45 to 64, and 16.9% ...

 
 
 
This page was created in 58.3 ms