The ATM181412D-3 from Radio Frequency Systems is a Tower Mount Amplifier with Frequency 1.71 to 1.88 GHz, Power 250 to 1600 W, IP3 25 dBm, Voltage 10 to 30 V, Frequency TX 1.71 to 1.785 GHz. Tags: Module with Connectors. More details for ATM181412D-3 can be seen below.