Cable TV system is directly link with public. It is necessary to reach the RF signal 24 hours consumer end. Therefore , it is necessary to keep our whole system (control-room, amplifiers, node etc.) to provide initial power supply every time through same co-axial cable wire to operate active power devices is called Power Pass System. Power Supply and Radio frequency are two differencing. However for mixing up these two signals always use power inserter. Without using power inserter may cause the poor quality transmission.
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