- an introduction or tutorial to the essentials of phase locked loop, PLL frequency synthesizer operation and design. PLL frequency synthesizers are widely used in all forms of radio communications equipment today.
Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of canceling out electromagnetic interference (EMI) from external sources; for instance, electromagnetic radiation from unshielded twisted pair (UTP) cables, and crosstalk between neighboring pairs.
When an aluminum lug surrounds the wire (instead of a copper lug surrounding an aluminum wire), it can expand and contract with current flow (and the corresponding temperature change) without causing deformation of the wire, regardless of whether the wire is copper or aluminum.