The ADC-4002 from Aldetec Inc is a Down Converter with RF Frequency 4.40 to 5.50 GHz, LO Frequency 1 KHz, IF Frequency 36 MHz, Conversion Gain 35 to 40 dB, Image Rejection -38 dB. Tags: Module with Connectors. More details for ADC-4002 can be seen below.