In communication, what is an active device and what is a passive device?
This is easy to distinguish, and the equipment that needs power is the active device (which needs to be plugged in), and what is not needed is passive. For example: repeater, dry put is active equipment; couplers, power dividers and so on is passive.
Yes, this is the case, the base station and repeater are active devices; as you say the signal source, that is, the base station and the edge of the base station and micro cellular devices, and what you call active and passive devices are two concepts. I ask you, if you are in the communications industry, we can communicate more deeply. I am responsible for the business and power equipment in the mobile industry.
Repeater monitoring is very simple, the general repeater is through the repeater on the integrated circuit board installed hard cat, through SMS warning to achieve performance monitoring and power monitoring. Communication from the power point of view analysis, active and passive distinction is the need for power, no power supply equipment and devices, but the signal to play the role of shunt and road. An active device is capable of transmitting signals or amplifying signals.
