IMPROVEMENTS AND CAPABILITY EXTENSION FOR THE IONOSPHERIC RESEARCH AIRCRAFT

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 housin...

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Bibliographische Detailangaben
Hauptverfasser:	VANCE,E.F, NANEVICZ,J.E
Format:	Report
Sprache:	eng
Schlagworte:	ANTENNAS ATMOSPHERIC SOUNDING C-135 AIRCRAFT ELECTRIC DISCHARGES HIGH FREQUENCY INSTRUMENTATION IONOSPHERE IONOSPHERIC PROPAGATION LOOP ANTENNAS MATHEMATICAL ANALYSIS PRECIPITATION STATIC RADIO RECEIVERS REDUCTION SCIENTIFIC RESEARCH TRANSPORT AIRCRAFT
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Beschreibung
Zusammenfassung:	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)