SAT priority switch, distributes/switches 1 LNB to 2 SAT receivers. Connection of 2 satellite receivers on one coaxial line (one master and one slave connection). Master output: Receiver (1) connected and determines LNB output / program switching, Slave output: Receiver (2) connected and determines LNB output / program switching only if receiver (1) switched off / on standby, receiver OFF/standby set at 0 DC. Switching signals 13 V / 18 V, 22 KHz ON/OFF, DiSEqC from receiver 1/2, frequency range: 950 MHz ~ 2400 MHz, diodes decoupled.