The BEM-2A Series from Crane Aerospace & Electronics is a Modulator with RF Frequency 2 to 2000 MHz, Voltage -5.2 V, Carrier Suppression -40 to -30 dBc, Insertion Loss 2 to 6 dB, Amplitude Balance 0.10 to 0.75 dB. Tags: Module with Connectors. More details for BEM-2A Series can be seen below.