The SM2737LI6CDA from Narda-MITEQ is a Modulator with RF Frequency 2.7 to 3.7 GHz, RF Frequency 2.7 to 3.7 GHz, LO Frequency 2.7 to 3.7 GHz, IF Frequency 20 to 40 MHz, Conversion Loss 6 to 8 dB. Tags: Module with Connectors. More details for SM2737LI6CDA can be seen below.