Joule

1) Work done by the force of one neutron when its point of application moves through the distance of one meter in the direction of the force. 2) One watt-second.

Isotropic Antenna

A theoretical, ideal antenna having a signal range of 360 degrees. It is used as a baseline for measuring a real antenna’s strength signal, in dBi, where i represents Isotropic Antenna.

Isolation Link

A metal link used in series with a fusing device that melts and prevents refusing/re-enerization of a transformer.