Electrical prospecting signal transmission device capable of suppressing electromagnetic coupling interference and electrical prospecting signal transmission method using same

An electrical prospecting signal transmission device capable of suppressing electromagnetic coupling interference, comprising:

• a rectangular wave signal source;
• an output circuit for supplying power to ground;
• and
• a plurality of transmission channels;
• wherein each of the plurality of transmission channels comprises an isolated driving circuit, a low-pass filter circuit and a power amplification circuit sequentially connected in series;
• the rectangular wave signal source is configured to generate a rectangular wave or a composite rectangular wave;
• a signal output terminal of the rectangular wave signal source is connected to an input terminal of the isolated driving circuit of each of the plurality of transmission channels;
• and an output terminal of the power amplification circuit of each of the plurality of transmission channels is connected to the output circuit to supply power to the ground.