Accession Number:

ADA076033

Title:

Air to Ground Propagation Measurements in the UHF Band

Descriptive Note:

Corporate Author:

AERONAUTICAL SYSTEMS DIV WRIGHT-PATTERSON AFB OH COMMUNICATION AND NAVIGATION LAB

Personal Author(s):

• Battelle, Richard B.

Report Date:

1952-06-01

Pagination or Media Count:

63.0

Abstract:

The Communication and Navigation Laboratory, WADC, has completed a series of flight tests to determine radiation and propagation limitations at UHF. Major emphasis was placed upon the variation of ground antenna radiation pattern as a result of antenna site and terrain characteristics. Antennas located on flat terrain were found to produce multiple lobe patterns, while elevated antennas on rolling terrain produced smooth free-space patterns. Propagation from both antenna sites can be predicted with reasonable accuracy using AIL type UHF coverage charts, from which the probable system performance also may be determined.

Descriptors:

• *ELECTROMAGNETIC WAVE PROPAGATION
• *JET FIGHTERS
• *RADIO LINKS
• LINE OF SIGHT
• FLIGHT TESTING
• AIRBORNE
• TERRAIN
• AIR TO SURFACE
• SLANT RANGE
• AIRCRAFT ANTENNAS
• GROUND STATIONS
• ULTRAHIGH FREQUENCY

Subject Categories:

• Attack and Fighter Aircraft
• Radiofrequency Wave Propagation
• Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE