Accession Number : ADA076033


Title :   Air to Ground Propagation Measurements in the UHF Band


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


Personal Author(s) : Battelle, Richard B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a076033.pdf


Report Date : Jun 1952


Pagination or Media Count : 63


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