1901-4

The Potomac 1901-4 digital antenna monitor is a 5 1/4 inch unit containing control/measurement circuitry for up to 4 towers, digital display of all measurements, local operating controls, and an interface to a remote control system. The control/measurement circuitry for each tower is contained in a separate module. The modules plug into the rear of the unit, and may be easily added to an expanding station. * Digital Antenna Monitor, 4 Towers.