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EA5325

Product catalog summary

Overview: The EA5325 is a shaped reflector radar antenna designed for local or terminal area coverage. It features a modified cosecant-squared elevation pattern to ensure constant returns from aircraft at a constant altitude. The antenna includes dual beam receive capability to enhance high angle performance and minimize short-range ground returns.

Key Features:

Low cost of ownership and robust build for low life cycle costs.
High angle coverage up to 35 degrees with excellent beam shaping and sidelobe control.
Polarisation switching available on both main and auxiliary beams.
No radome requirement and transportable versions available.
Compatible with LVA's from various suppliers.

General & Mechanical Specifications:

Type: Shaped reflector.
Aperture Size: 5.3 x 2.5 m.
Total Weight: 3.3 tonnes (excluding LVA).
Height: 3.8 m including pedestal and stand.
Max Swept Radius: 3.4 m.
Rotation Rate: Up to 15 r.p.m.
Design Life: 20 years.
Environmental: Wind speed up to 240 km/hr with ice, temperature range from -30ºC to +70ºC, humidity 5% to 100%, suitable for coastal environments.

Electrical Specifications:

Frequency Range: 'S' Band - 2.7 - 3.2 GHz.
Gain: 32 dBi (Auxiliary Beam), 34 dBi (Main Beam).
VSWR: 1.40:1 average/peak.
Azimuth Beamwidth: 1.5º ± 0.1º.
Azimuth Sidelobes: -26.0 dB Max (0º to ±10º), -32.5 dB Max (±10º to ±30º), -35.0 dB Max (±30º to ±180º).
Elevation Beamwidth: 6.0º nominal (Auxiliary), 4.5º nominal (Main).
Signal Outputs: Co-polar signal for target, cross-polar signal for weather.
Vertical Beam Separation: 5.5º ± 1º between peaks of Auxiliary and Main beam.

Options: The antenna offers SSR/MSSR co-mounting capability, dual redundant motors, choice of encoders or Inductosyn®, choice of rotary joint, and obstruction lights.

Catalog excerpts

easatRADASSYSTEMS The EA5325 shaped reflector radar antenna is designed to provide local or terminal area coverage using a modified cosecant2 elevation pattern operate in conjunction with a radar system giving constant returns from aircraft flying at constant altitude. A dual beam receive capability is given to enhance high angle performance and minimise short-range ground returns. Polarisation switching between Linear and Circular is provided on both main and auxiliary beam and a cross polarised output is available on both beams that is used as a receive weather channel. Options SSR/MSSR Co-mounting capability; dual redundant motors; choice of encoders or Inductosyn®; choice of Rotary Joint; obstruction lights._ Specifications are subject to change as part of Easat's ongoing improvement policy. Customers are advised to confirm specifi cation prior to contract Easat Radar eystems Ltd, Unit IJubilee Site, Ivy House Road, Hanloy,Stoke-On-Trant, cTI 3NW, England Telephone: +44 (0)1782 2A8038 Fax: +44 (0) 1782 208060 E mail: [email protected] Website:

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EA5325

EA5325

Catalog excerpts

All EASAT ANTENNAS, LTD. catalogs and technical brochures