The 50 Ohm C-Band from Vialite Communications is a RF Over Fiber Module with Frequency Range 500 MHz to 7.5 GHz, Optical Wavelengths 1310 to 1550 nm, Optical Output Power 10 dBm, Noise Figure 21 dB, P1dB -4 dBm. Tags: Rack Mount/Benchtop, Receiver, Transmitter. More details for 50 Ohm C-Band can be seen below.