Accession Number : AD0888366

Title :   HF Receiving Antenna Arrangement on Flight-Deck Edge of Aircraft Carriers. Performances of Antennas in Different Locations and Paired Combinations are Compared.

Descriptive Note : Research and development rept. 1 Jul 70-1 Jun 71,

Corporate Author : NAVAL ELECTRONICS LAB CENTER SAN DIEGO CA

Personal Author(s) : Vaughn, G. V. ; Goodbody, R. L.

Report Date : 21 JUL 1971

Pagination or Media Count : 69

Abstract : Five possible sites were studied for placement of 2-30 MHz twin-whip antennas on the deck edge of ships of the CVA 59 to CVAN 68 types. Performance of the antennas under various operating conditions was measured; computer techniques permitted the storage, reduction, and tabulation of the data to facilitate comparison. It was found that siting of the antennas did not appreciably affect their performance, provided they were more than quarter wavelength at 2 MHz, approximately equal to 125 feet from the forward and after ends of the flight deck and from the island. In pairing the antennas to achieve space diversity, the most important factor is the distance between them, which should be at least 200 feet. (Author)

Descriptors :   (*SHIP ANTENNAS, PERFORMANCE(ENGINEERING)), FLIGHT DECKS, HIGH FREQUENCY, AIRCRAFT CARRIERS, ANTENNA ARRAYS, SITE SELECTION.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE