Accession Number:

AD0755511

Title:

Radio-Wave Propagation Measurements over Sea Water

Descriptive Note:

Corporate Author:

HARRY DIAMOND LABS ADELPHI MD

Personal Author(s):

• Algor, M. M.

Report Date:

1972-08-01

Pagination or Media Count:

102.0

Abstract:

Propagation loss was measured at three frequencies 30, 140, and 412 MHz over various sea-water paths out to 40 nautical miles between a moderately elevated shore-based receiving site and a floating transmitter platform essentially at the waters surface and subject to wave motion. The measured losses agreed well with theory, assuming a standard atmosphere for the test conditions. Certain anomalies and ocean-wave effects were noted. In general, meteorological conditions were relatively constant and normal for eastern Florida in summer.

Descriptors:

• *RADIO TRANSMISSION
• ATTENUATION
• MEASUREMENT
• OCEAN WAVES
• OCEANS
• ULTRAHIGH FREQUENCY
• VERY HIGH FREQUENCY

Subject Categories:

• Radiofrequency Wave Propagation
• Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE