4x4 multi-switch without powersupply

4X4 SATELLITE MULTISWITCH
paatent technology power from receiver
Type  4 in 4 out
Input  4Sat
Output  4 subscriber
Frequency Range Sat  950-2150MHz
Insertion Loss  5dB
Isolation output  25dB
Isolation input  28dB
Return Loss input  12dB
Return Loss output  8dB
Return Loss Output  10dB
output levels Sat(IMA3)  85dBuV
Impedance(all ports)  75Ω
DiSEqC  2.0-2.1