TELEWAVE's TTBS-4586 base power supply provides up to 1 A of regulated DC power for any TELEWAVE's tower mounted preamp. The TTBS-4586 is designed around a custom power supply, which supplies +15 VDC to the preamp via the coaxial cable. Voltage is coupled to the transmission line by a polyphaser GX series impulse suppressor, which incorporates a DC power injector. The base power supply accepts AC or optional DC input, or both, depending on system requirements. A built-in DC-DC converter allows DC input up to 75 VDC. The panel requires a 3.5 in x 19 in rack space, and includes a 1 A current meter. The optional TCMA-300 current monitor and alarm panel provides adjustable high and low current trip points with form ”C” contact closure and LED status alarm. A front panel step attenuator is also available.