Intermediate and Short Distance Sky-Wave Propagation Charts. Volume 19. Alaska. January-December.

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Abstract:

The report is one volume in a set known as the Intermediate and Short Distance Sky-Wave Propagation Charts. These charts show the upper and lower limiting frequencies for radio communication in the 2 to 30 MHz band for distances up to 2400 km. Predicted values of frequencies are shown for the solar activity extremes for a normal solar cycle i.e., sunspot numbers of 10 and 110. Values of frequency predictions may be obtained for any time during the normal solar cycle by means of interpolation. These charts will be applicable at least through calendar-year 1976. Within each volume, the predictions are given for six seasonal intervals--January-February, March-April, May-June, July-August, September-October, and November-December. Within each seasonal interval, the predictions are given in a series of 22 charts. Modified author abstract

Author(s):
No Author(s) Identified
Author Organization(s):
ARMY COMMUNICATIONS-ELECTRONICS ENGINEERING INSTALLATION AGENCY FORT HUACHUCA ARIZ
Pagination:
0185

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Project Number(s):
SCC-405-72
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*Ionospheric propagation, *Alaska, Radio waves, Communication and radio systems, High frequency, Electromagnetic radiation, Charts, Optimization, Time, Predictions, Sunspots, Solar activity, Solar cycle, Ionospheric disturbances, Seasonal variations
Field(s)/Group(s):
Radio Communications
Report Date:
1971 Oct 15