- 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.
Twisted or cable-laid rope consists usu-ally of three strands, twisted in a clockwise (âright-hand layâ) direction. The yarns in each strand are twisted counterclockwise, and the fibers in the yarns are clockwise; this alternate reversing of direction balances the rope. Twisted rope is the standard, utili-