The ATS3TMA4-R from dbSpectra is a Tower Top Amplifier with a built-in Quadrature Amplifier and a receive Bandpass Filter for receiver protection. This Tower Top Low Noise Amplifier module operates from 370 to 400 MHz (UHF-band) and provides a gain of 14 dB with a noise figure of less than 5.5 dB. It also provides surge suppression of 18 kA as per the ANSI c62.18/ 20 standard.
The ATS3TMA4-R is available in an aluminum canister to provide wind resistance and better weather protection. It measures 31.25 × 13.25 × 11.5 inches with Type-N (F) connector. It has PolyPhaser Bias-T lightning protection built-in. This tower top amplifier can be ordered with a test port signal injector, which provides a second transmission line for input for testing with control to switch out the antenna and switch in the test port.