For point-to-point analog signaling, such as voice telephone lines, the maximum usable bandwidth is typically around 4 kHz, which is sufficient to carry the frequency range of human speech.
For point to point analog signaling, a bandwidth of up to about _________ is possible.
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Question context
This question is part of 📡 Electronics and Communication Engineering (ECE) within the broader 🛠️ Engineering Essentials subject and appears in the ETEA Educational Testing and Evaluation Agency preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.