Accession Number:

AD0644829

Title:

NOISE TEMPERATURE OF AIRBORNE ANTENNAS AT UHF

Descriptive Note:

Technical note

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s):

• Ploussios, G.

Report Date:

1966-12-06

Pagination or Media Count:

61.0

Abstract:

Partial results of an experimental program to determine the electromagnetic noise environment at UHF on board an aircraft are presented. Contributors to an airborne receiver noise temperature including galactic noise, earth temperature, P-static, atmospherics and industrial noise were measured and are discussed. A model of the industrial noise is presented whereby the industrial area is considered as a uniformly distributed source of independent radiators, the magnitude being the same for all cities measured with the exception of the New York City area. RFI generated by on-board equipment andor ground transmitters will be covered in a subsequent report.

Descriptors:

• *AIRCRAFT ANTENNAS
• EARTH(PLANET)
• RADIOFREQUENCY INTERFERENCE
• EXTRATERRESTRIAL RADIO WAVES
• THERMAL RADIATION
• INDUSTRIAL EQUIPMENT
• ATMOSPHERICS
• TEMPERATURE
• ULTRAHIGH FREQUENCY

Subject Categories:

• Electrical and Electronic Equipment
• Cybernetics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE