The MLS-550/500-70 from Narda-MITEQ is a DLVA with Frequency 300 to 800 MHz, TSS -73 dBm, Dynamic Range -70 to 0 dBm, Supply Voltage 8 VDC at 475 mA, Operating Temperature -40 to 85 Degree C. Tags: Module with Connector, SDLVA. More details for MLS-550/500-70 can be seen below.