HIGH FREQUENCY MODULATED TRANSMITTER ARRANGEMENT

摘要

The invention discloses a high frequency modulated transmitter arrangement for use in geophysical surveying. The transmitter arrangement has a switching transmitter operatively joined to a transmitter loop, wherein the switching transmitter is adapted to control electrical current flow in the transmitter loop. The switching transmitter receives an input voltage and produces an output voltage for causing the current flow in the transmitter loop, wherein the output voltage is regulated by pulse width modulation of the input voltage to produce a desired current waveform in the transmitter loop.