PMI Model No. PRX-20-1G18G-850M-SFF is a Channelized Receiver with an RF input of 1.0 to 18.0 GHz. Twenty output channels allow simultaneous signals to be output for digitization. An internal reference is included to lock the various LO's in order to down convert the signal into the necessary frequency bands. Other specifications RF Input Power, -55 to +5 dBm; VSWR 2.0:1 Max; RF Input Spurious Free Dynamic Range: , 60 dB Min; RF Output Frequency: , 5.0 GHz max., 4.4 GHz Typ; 20 RF input channels; RF Output Gain, 0 dB ± 3 dB Typ; RF Output Passband, 900 MHz Typ; RF Output Stopband, 1.4 GHz Max; Reference Output Frequency, 10 MHz; Reference Output Power, +20 dBm; and Reference Output Stability, ±1 PPM. RF connectors, SMA (F), 9-Pin D-Sub (M) power connector and unit size is 9.00" x 6.00" x 1.50".