The AUC-3742XXX-IR from Aldetec Inc is a RF Upconverter with RF Frequency 3.7 to 4.2 GHz, IF Frequency 70 MHz to 1.5 GHz, Noise Figure 8 dB, Conversion Gain 8 dB, Input Power 20 dBm. Tags: Module with Connectors. More details for AUC-3742XXX-IR can be seen below.