TEST AND EVALUATION OF BROADBAND VHF ISOLATOR

This report describes a prototype broadband VHF ferrite isolator device that can be used to reduce transmitter intermodulation in air traffic control air/ground communication equipments. The isolator was developed for the Systems Research and Development Service through an Inter-Agency Agreement with the United States Air Force. The isolator was tested at the National Aviation Facilities Experimental Center and was found to reduce T-1108/GRT-21 transmitter intermodulation approximately 30 dB. Test results fell short of design goals for weight, insertion loss, and intermodulation product reduction. (Author)

• Corporate Authors:

  NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER

  ATLANTIC CITY, NJ  United States 
• Authors:
  • Coyle, J J
• Publication Date: 1976-5

Media Info

• Pagination: 13 p.

Subject/Index Terms

• TRT Terms: Air traffic control; Broadband; Chemical reduction; Communication systems; Crash cushions; Electromagnetic interference; Ferrites; Prototypes; Radiation shielding; Radio; Radio transmitters; Suppressors; Very high frequency
• Old TRIS Terms: Attenuators; Intermodulation; Reduction
• Subject Areas: Bridges and other structures; Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00133364
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FAA-NA-75-70, FAA-RD-76-67, Interim Report
• Files: NTIS
• Created Date: Jul 13 1976 12:00AM