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Home Telephone Toll Service and Systems Delay Equalizers
 
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Delay Equalizers

In high-quality circuits, such as radio program networks, it is desirable that all frequencies travel along a circuit at the same velocity or the program will be distorted.26 Fig. 16 illustrates this effect in a loaded radio program cable. It will be observed that for the cable alone the lower frequencies travel faster than the high-frequency components. When a delay equalizer1 is inserted in the line, however, the overall velocity of transmission is the same, and distortion from this cause is prevented.

Figure 16. Delay-frequency characteristics of 50 miles of 16-gauge, B-22 cable with and without delay equalizer. (Reference 25.)


Home Telephone Toll Service and Systems Delay Equalizers

Last Update: 2011-05-30