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EASAT PSR

Air Traffic Control Radar
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Basic Information
Name
EASAT PSR
Designation
Alternate Designation
Equipment Type
Air Traffic Control Radar
Manufacturer
Date of Introduction
Description

The EASAT PSR (Primary Surveillance Radar) is an S-band (2,700–2,900 MHz) terminal area radar designed for air traffic control, airspace surveillance, and landing approach guidance at airports. It employs a parabolic antenna with a cosecant-squared pattern and separate high and low beam receive channels to enhance fixed-target rejection. The radar's horn radiators can switch between linear and circular polarization, and its transmitter utilizes 12 or 24 solid-state amplifier modules, which are hot-swappable. The system can tolerate the failure of up to two amplifier modules without significant loss of its instrumented range of 110–220 km.

Ground Specifications
Range 111.1 km
Technical Characteristics
frequency 2 700 … 2 900 MHz (S band)
pulsewidth (τ) 1 µs and 40 … 300 µs
peak power 16 or 28 kW
instrumented range 60 … 120 NMNM(≙ 110 … 220 km)
range resolution 230 m
accuracy 50 m ; 0.1°
beamwidth < 2°
antenna rotation 6 … 15 rpm
Details
Category ATC Radars
Land > Radars > ATC Radars
Classification
Domain
Ground
Equipment Status
Active
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