Profile: Watts Antenna Company is a manufacturer of antennas. Our products include ILS glide slope antenna systems, ILS localizer antenna systems and GPS antennas. Our model 201 ILS localizer antenna system is a highly directive localizer system which provides final approach azimuth guidance information to a landing aircraft, enabling the pilot or autopilot to maintain the proper course during the approach and landing. Our model PS-5 GPS antenna is the first in a series of antennas intending to address the requirements of ground based antennas for differential global positions (DGPS) system precision approach and landing applications.