Accession Number:

AD0653164

Title:

ATMOSPHERIC RADIO NOISE DATA, BANKOK, THAILAND - SEPTEMBER-NOVEMBER 1966

Descriptive Note:

Geophysical data rept.

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CA

Personal Author(s):

• Chindahporn, Rangsit
• Nimityongskul, Prajuab
• Lumjiak, Chaikamol

Report Date:

1967-03-01

Pagination or Media Count:

22.0

Abstract:

Measurements were made of atmospheric radio noise at a joint Thailand-United States-organization in Bangkok. The noise-measuring equipment, modeled after the U. S. National Bureau of Standards Radio Noise Recorder, Model ARN-2, is located near the village of Laem Chabang, about 90 kilometers southeast of Bangkok, in order to minimize interference from man-made noise. A view of the site, showing the standard ARN-2 antenna and ground plane, is presented. For convenience in applying the results in this study, a nomogram for transforming effective antenna noise figure to noise field strength as a function of frequency is presented.

Descriptors:

• *ATMOSPHERICS
• *NOISE(RADIO)
• *RADIO INTERFERENCE
• ANTENNAS
• HIGH FREQUENCY
• LOW FREQUENCY
• MEASUREMENT
• MEDIUM FREQUENCY
• NOMOGRAPHS
• THAILAND
• VERY LOW FREQUENCY

Subject Categories:

• Atmospheric Physics
• Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE