CESTRON RCA

GENERAL DESCRIPTION

ROTATABLE CURTAIN ANTENNA (RCA)

picture Cestron RCA

The rotatable curtain antenna system is the most flexible solution available today. Covering a 360° angle at the touch of a button, the RCA offers best investment efficiency. The folded half-wave and rigid (steel) dipoles are an integral part of the steel construction. A tubular shaft is used as base section. It is housing all equipment needed to operate the antenna, such as drive system, feeding system including coaxial rotary joint, matching unit, broadband balun and antenna selector switch. Consequently all parts that are susceptible to climatic and / or environmental exposures, including the exposure to electromagnetic fields, are well protected. Lattice shaft sections are used on top of the tubular sections, for the cross arms, supports of dipoles and reflector screens. All steel parts are of highest quality design to ensure an optimal weight of the overall system. Accessibility is the key to the design of the Cestron rotatable array antennas, making inspection and maintenance work quick and easy.

Technical Highlights in Addition to the Highlights of the Rigid Curtain Antenna Arrays:

Highest radiation flexibility
Highest frequency flexibility, i.e. frequency bands of the allocated shortwave broadcasting range (standard design, without tropical bands)
Electric control logic to operate the entire network and to assure that the antenna is turned in the direction of the respective coverage area over the shortest possible path
Smooth, joltless starting and breaking to a standstill
High rotation speed of 1 degree per second
High positioning accuracy of < 1 degree
Monitoring and remote control of all operational functions

ROTATABLE CURTAIN ANTENNA AHR 2/2

TECHNICAL SPECIFICATIONS
Model	AHR 2/2
Frequencies	6 - 11 (low band) and 13 - 26 MHz (high band)
Input power	up to 500 kW (plus 100% modulation)
Gain	14 dBi up to 19 dBi
Tower height	50 m
Rotation speed	1 degree / second
Monitoring and remote control	of all operational functions
Specifications may change without notice

AZIMUTH RADIATION PATTERNS