    信号衰减大、时变性大、噪声影响大等不足
20世纪末，电力线通信因为它信号干扰大、技术提高难、时变性大、稳定性差、噪声影响大等缺点，在技术产业革新飞速的今天，局限性日益凸显，已经很难适应现代化网络对通信产业更大容量、更高速率、更高稳定性的“三高”要求。因此，解决这些不足，是电力线发展的必由之路。
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