Why are short, heavy-gauge wires used for a transceiver’s DC power connection?

All conductive wires have a certain amount of natural electrical resistance. When a transceiver transmits, it draws a high amount of current. According to Ohm's Law (Voltage = Current x Resistance), high current flowing through a wire with resistance will cause the voltage to drop by the time it reaches the radio. To minimize this voltage drop, you must reduce the electrical resistance of the power cables. You achieve this by keeping the wires as short as possible and by using a heavy-gauge (thicker) wire, which inherently has less resistance than thin wire. If the voltage drops too much at the radio's power terminals, the transceiver may abruptly shut off, distort your transmitted audio, or fail to output full RF power. While proper station grounding helps handle RF interference, heavy DC wires are strictly used for efficient power delivery.