AIR-GROUND-AIR COMMUNICATIONS AUGMENTED 4-WHEELS
Abstract
The augmented 4-wheels program was initiated to up-date the capability of the 4-wheels airtransportable, air traffic control system. For the VHF and UHF air-ground air communications part of this system, this meant primarily the addition of new up-to-date channelized radio equipment. Improvements in the state of the art and miniaturization permitted the selection of much smaller and lighter components. At the same time, a study of the interference problems predicted the degree of pre-selection and antenna isolation parameters required for the operation of the multi-channel system from a single shelter. The resultant system includes 7 20-watt UHF transceivers connected through 2 UHF tandem cavity antenna couplers to UHF antennas, 4 25-watt VHF transmitter/receivers connected through 2 VHF antenna couplers to 1 VHF antenna couplers to 1 VHF antenna, and 1 1-kilowatt HF singlesideband transmitter/receiver connected through 1 antenna coupler to 1 HF antenna. Single mast construction using collinear stacking of UHF and VHF antennas provides the antenna configuration for the system. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1961
- Accession Number
- AD0264252
Entities
People
- Rolf W. Wollan
Organizations
- Air Force Cambridge Research Laboratories