EXPANDED LITTLE IDA, EXPERIMENTAL PROGRAM AND RESULTS.

• Main Authors: Swanson, Roger W., Pierluissi, Joseph H., Olmsted, Donald T., Chapman, Ross M., Humphrey, Leonard D.
• Other Authors: GENERAL ELECTRIC CO SYRACUSE NY HEAVY MILITARY ELECTRONIC SYSTEMS
• Format: Text
• Language: English
• Published: 1967
• Subjects: Active & Passive Radar Detection & Equipment; Radiofrequency Wave Propagation; *IONOSPHERIC PROPAGATION; HIGH FREQUENCY; PANAMA; NEW YORK; RANGE(DISTANCE); PROPAGATION; RADAR TRANSMITTERS; RADAR RECEIVERS; RELIABILITY; RADAR SIGNALS; AZIMUTH; ANGLE OF ARRIVAL; RADAR INTERFERENCE; NOISE(RADAR); OVER THE HORIZON DETECTION; DIURNAL VARIATIONS; Greenland; Ida; Thule
• Online Access: http://www.dtic.mil/docs/citations/AD0813993; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0813993

This report presents information pertaining to experimental studies that are being conducted to provide accurate estimates of the major environmental factors required for over-the-horizon system design. Under the Expanded Little IDA program four major HF propagation experiments, namely, mode reliability, mode loss, azimuth angle of arrival and noise/interference are being conducted. This report discusses the data reduction and data analysis of the results from the mode reliability and mode loss experiments. The data is based on measurements made on a 2000 nautical mile path between the Panama Canal Zone and Stockbridge, NY, and covers a time period from February to July 1966. Data collection has recently commenced over a 2000 nm trans-auroral path (Thule, Greenland to Central New York), and the results of similar experiments will be reported at a later time. (Author)