GPS Networking’s VGHNRRKIT is a complete re-radiating system that allows re-radiation of the GPS L1 signal indoors. The VGHNRRKIT consists of an active roof antenna, a re-radiating amplifier with a variable gain knob that allows for easy gain adjustment from -3dB to 23dB, a wall mount plug-in transformer that powers the entire system, and an L1 passive re-radiating antenna.