- 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.
This is also called the motor effect, since this is the way motors work. The wire (formed into a square loop), experiences a torque because the current flowing in the two arms of the loop are not in the same direction, causing the forces on the wire to be in opposite directions. The torque turns the wire loop.