| exciter [ek`sīd·ǝr] ELECTRICITY 1. A small auxiliary generator that provides field current for an alternating-current generator. 2. See <<exciter lamp>> ELECTROMAGNETISM 1. The portion of a directional transmitting antenna system that is directly connected to the transmitter. 2. A loop or probe extending into a resonant cavity or waveguide. ELECTRONICS A crystal oscillator or self-excited oscillator used to generate the carrier frequency of a transmitter. |