4 Sat-If +1 Terr. Signals CWDM Optical Receiver. STANDARD EXPROT CARTON for digital satellite finder meter. Designed for satellite optical system. Wide operating frequency range: 47-2150MHz. Excellent linearity and flatness. Using 1-core single-mode fiber, high return loss. Build-in CWDM, using high linear PD. Output connected to 5 IN series satellite multiswitch. Build-in optical AGC function. Red-LED for power indication. Smaller size and easier installation.