The RTA-4-1000 from Radar Technology is a DLVA with Frequency 750 to 1250 MHz, Dynamic Range 60 dB, Gain 50 to 70 dB, Supply Voltage 15 VDC, Operating Temperature -30 to 71 Degree C. Tags: Module with Connector, DLVA. More details for RTA-4-1000 can be seen below.