Dual-function transmitting system

A dual-function transmitting system comprising:

• a receiving module for receiving an Ethernet signal and transforming the Ethernet signal into a RF signal;
• a transmitting module for receiving a CATV (cable TV) signal and transmitting the CATV signal;
• a first signal provider for receiving and providing the CATV signal transmitted by the transmitting module;
• at least one second signal provider for receiving and providing the CATV signal transmitted by the transmitting module;
• and
• a combining module for receiving the RF signal from the receiving module, transmitting the RF signal to the first signal provider, and for receiving and transmitting the CATV signal provided by the first signal provider;
• wherein after receiving the RF signal transmitted from the combining module, the first signal provider transmitted the RF signal to the transmitting module, and after receiving the RF signal transmitted from the first signal provider, the transmitting module transmits the RF signal to the at least one second signal provider.