Why is communication equipment using direct current instead of alternating current?
In addition, the electronic components used by the communication devices are applicable to the direct current circuit, but not to the AC circuit.
In high frequency communication, there is DC, and there is also the problem of signal noise. Communication in use, due to changes in frequency, resulting in a large number of radio interference, the electrical signal, especially microcircuit, which is a fatal impact
The communication power adopts DC to avoid mutual interference.
