Editing Last mile (telecommunications) (section)

===Intermediate system===
Recently a new type of information transport  midway between wired and wireless systems has been discovered. Called [[Single-wire transmission line#E-Line|E-Line]], it uses a single central conductor but no outer conductor or shield. The energy is transported in a plane wave which, unlike radio does not diverge, whereas like radio it has no outer guiding structure.

This system exhibits a combination of the attributes of wired and wireless systems and can support high information capacity [[broadband over power lines|utilizing existing power lines]] over a broad range of frequencies from [[Radio frequency|RF]] through [[microwave]].