WATTS ANTENNA COMPANY
	...the tough site solution

First Commercial-Grade Super-Aperture Localizer In the World, Watts Model 201, Successfully Completed a Full Commissioning Flight Inspection With Monitors at Geneva, Switzerland 

Herndon, VA: 20 May 2005: Watts Antenna Company is pleased to announce the successful installation of the very first commercial-grade Model 201 Super Aperture Slotted Cable Localizer Antenna for use on Runway 23 in Geneva, Switzerland.  A reduction in structure roughness of 50% or more was gained by employing the first super-aperture localizer antenna.  The installation by Skyguide, (Swiss Air Navigation Services, Ltd.), was completed in April, and the system was optimized and successfully flight inspected by the end-of-the month.  Watts’ localizer antenna system and distribution unit were installed with localizer station equipment supplied to Skyguide by Park Air Systems AS of Norway. 

Watts Model 201 Super-Aperture Localizer Antenna (86 meters in White Radomes) Mounted in Reflector Assembly. Behind the Watts slotted-cable antenna,  overlooking the reflector is a 24-element Normarc Log Periodic Dipole (LPD) Array.   Clearance signals are provided using 8 LPD’s of the Normarc Array.

John H. Johnson, Sr., president of Watts Antenna Company, who assisted Skyguide on-site for three weeks, commented, “Given the difficult site conditions for the localizer at Geneva Runway 23, the Watts Model 201 was able to solve the problems because of its inherent design for radiating the narrowest course beam available.  With increasing congestion and development at busy airports creating environments hostile to the integrity of the radiated signals, and the pressure for additional buildings located closer to runways and taxiways, we believe it is time to realize the airport efficiency benefits in larger aperture Instrument Landing System (ILS) localizer antennas for the foreseeable future.”   

Herve Demule of Skyguide indicated his pleasure with the project.  Mr. Demule stated, “We contacted Watts Antenna Company some time ago about the specific issues with the localizer at Geneva Runway 23.  We jointly studied the application of the Watts localizer as a possible solution, and our own analysis led to our decision to field the Model 201 rather than any alternatives.  We are very pleased with the results we achieved.” 

The system will be evaluated by Skyguide for stability and in meeting a 4000-hour continuity period study over the next 5 – 6 months to fully comply with ICAO Category III requirements. 

Watts Antenna Company specializes in providing …the tough site solution with innovative ILS antenna products.