ESE ES-AB1A GPS Antenna Power Divider

The ES-AB1A is a 5 VDC power supply built to drive up to four ES-820 or ES-820N inline GPS amplifiers from a single master clock's antenna port. An internal isolation circuit routes the DC power out to the antenna and amplifier chain while passing only the returning GPS signal back to the master clock's receiver, so power and signal share the same coax without interfering with each other.

It connects in the antenna cable path between the master clock and the antenna, and its rugged desktop enclosure is meant to live alongside the master clock it is powering rather than out at the antenna itself.