www.radartutorial.eu www.radartutorial.eu Card Index of Radar Sets - ATC-Radars

Marconi S-511

Description of the radar set, tactical-technical characteristics

Figure 1: ATC radar Marconi S-511 at Norfolk airfield (England)

Figure 1: ATC radar Marconi S-511 at Norfolk airfield (England)

frequency: S band
pulse repetition time (PRT):
pulse repetition frequency (PRF): < 1000 Hz (staggered)
pulsewidth (τ): 0.85 µs
receiving time:
dead time:
peak power: 650 kW
average power: 550 W
instrumented range: 200 NM
range resolution: ½ NM
hits per scan:
antenna rotation: 4 s (15 rpm.)

Marconi S-511

The ATC-Radar Marconi S-511 is a long-range version of the Marconi S 500 series of radars and uses a high-power coaxial S band magnetron. Frequency diversity using two transmitter/receivers is available.

A modular tower with an enclosed upper section housing the turning gear is included. Remote-control and monitoring is available. Two ranges of display systems are available for use with these radars:

The antenna consists of a 5 m aperture, double cosecant squared, carbon fibre reflector and a double horn system for dual beam operation. Variable polarization between linear (vertical) and circular is provided on the lower beam, and fixed circular polarisation on the upper beam.

In Canadian service, the equipment is known as AN/FPS-509.

Picture gallery of S-511

Figure 2: ATC-Radar Marconi S-511

Figure 3: Licensed construction from Inisel
(© Josep Tomàs / Licencia CC BY-NC-SA 2.0)