Page 86 - Microsoft PowerPoint - Foundation Licence Training [Compatibility Mode]
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Section 5 Antennas and Transmission Lines u There are two basic types of feedline. These are coaxial and parallel. u Coaxial cable used in radio is unbalanced and is usually 50 ohm impedance u Parallel line is balanced transmission line usually 300 or 600 ohm impedance u Impedance can be considered as resistance to AC 24 November 2009 TrainSafe Australia 86
