Accession Number : AD0276538

Title :   IMPROVEMENTS AND CAPABILITY EXTENSION FOR THE IONOSPHERIC RESEARCH AIRCRAFT

Corporate Author : STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s) : VANCE,E.F. ; NANEVICZ,J.E.

Report Date : FEB 1962

Pagination or Media Count : 1

Abstract : Means are described for reducing precipitation static interference on a KC-135 aircraft equipped with a refueling boom and with fixed-wire and other special HF antennas. A complement of ortho-decoupled dischargers is recommended, and special precautions to be observed in the design of antenna housings and fittings are discussed. Improvements in the electrical design for an airborne ionospheric-sounder receiving-antenna system for the 2-to-25 megacycle range are described. Single-turn, balanced ellipticalloop antennas with tuners and preamplifiers operating throughout the frequency range were designed for installation in the wing tips of the aircraft. A balanced triangular p was designed for installation in the nose radar bay. In addition, a method of determining the gain of a three-wire transmit-receive antenna on the KC-135 aircraft is described. A summary of studies of a new method of determining the properties of the lower inosphere from airborne measurements is given. (Author)

Descriptors :   *ANTENNAS, *ATMOSPHERIC SOUNDING, *IONOSPHERE, *IONOSPHERIC PROPAGATION, *LOOP ANTENNAS, *PRECIPITATION STATIC, ELECTRIC DISCHARGES, HIGH FREQUENCY, INSTRUMENTATION, MATHEMATICAL ANALYSIS, RADIO RECEIVERS, REDUCTION, SCIENTIFIC RESEARCH, TRANSPORT AIRCRAFT

Distribution Statement : APPROVED FOR PUBLIC RELEASE