Unbalanced line
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In telecommunications and electrical engineering in general, an unbalanced line is a pair of conductors intended to carry electrical signals, which have unequal impedances along their lengths and to g
A multicore cable able to support 25 unbalanced transmission lines
Telegraph lines on an Oppenheimer pole outside the historic Alice Springs telegraph station on the now disused Australian Overland Telegraph Line
Coaxial cable
Microstrip parallel-coupled transmission lines. The design forms a band-pass filter
Twin-lead
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Twin lead cable is a two-conductor flat cable used as a balanced transmission line to carry radio frequency signals. It is constructed of two, stranded copper wires, or solid copper-clad steel wires.
Unbalanced line
…the historic earth return system invented for the telegraph, but rarely used today. Unbalanced lines are to be contrasted with balanced lines, such as twin-lead or twisted pair which use two identical conductors to maintain impedance balance throughout the line. Balanced and unbalanced lines can be interfaced…
Piece of 300 Ω twin lead.
A 300-to-75 Ω balun, showing twin lead ribbon cable on the right hand side
Nominal 450 Ω "window line". The opening cut between the wires is one of the "windows".
500–600 Ω open wire line or ladder line feeding a high wire antenna.