Information Technology Reference
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F IG . 25. Active time vs. number of channels.
For broadcast data without an index, the mobile unit has to be active all the
time in order to scan data in parallel air channels until all required data is ac-
cessed. This simply means that the active time is the same as the response time.
In addition, for all four indexing schemes, the active time remains almost con-
stant and independent of the number of air channels. This is because the active
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