Accession Number:

AD0647286

Title:

PREDICTED SIGNAL-TO-NOISE RATIOS AROUND THREE HF TRANSMITTING STATIONS.

Descriptive Note:

Research rept., Apr-May 66,

Corporate Author:

NAVY ELECTRONICS LAB SAN DIEGO CALIF

Personal Author(s):

• Potthoff,J. R.
• Gerard,H.

Report Date:

1966-11-18

Pagination or Media Count:

25.0

Abstract:

Plots of data are presented that enable prediction of maximum hf communication coverage between ships in the areas of the Philippine Islands, Gibralter, and Iceland-U. K. The data show the manner in which the signal-to-noise ratio varies with time for extremes of sunspot number and season. Short-term effects and propagation via mixed modes are not considered. Author

Descriptors:

• *RADIO TRANSMISSION
• SIGNAL TO NOISE RATIO
• HIGH FREQUENCY
• GRAPHICS
• RADIO WAVES
• PREDICTIONS
• COMMUNICATION AND RADIO SYSTEMS
• SHIPBOARD
• INTEGRATED SYSTEMS

Subject Categories:

• Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE