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Pluto

Description of the radar set, tactical-technical characteristics

Figure 1: Pluto

Figure 1: Pluto

Specifications
frequency: S-Band
pulse repetition time (PRT):
pulse repetition frequency (PRF): random stagger
pulsewidth (τ):
receive time:
dead time:
peak power: 135 kW
average power:
instrumented range: 60 NM (≙ 110 km)
range resolution:
accuracy: 40 m; 0.35º
beamwidth: 1.5º
hits per scan:
antenna rotation: 12 or 15 rpm
MTBCF:
MTTR:

Pluto

The Pluto is an operating in S-Band low-level coverage surveillance radar for air and coastal defence, designed to detect medium, low and very low-flying aircraft and small surface vessels. Pluto provides 2-D primary and secondary surveillance radar target detection. The primary radar is fitted with an integrated secondary identification friend-or-foe radar. It consists of one equipment shelter, one antenna module and a power generator trailer. The transmitter, receiver and processing equipment are all housed in the shelter. The radar is provided with a datalink interface for connection to an operational shelter or to a control center.

The antenna fed by a group of feed horns is a double curved parablic reflector generating a cosecant squared pattern. The polarisation is (selectable) horizontal linear or circular. The transmitted waveform is a code agility phase code modulated pulse. The final stage of the transmitter is a Travelling Wave Tube.

Pluto is often a part of the Mobile Automatic Reporting Station MARS-402, that consists of the Pluto radar sensor, an operation section (incl. communications subsystem) and power supply. A reduced-range version of Pluto (50 … 60 km) is used to supply surveillance data for the Spada air defence system. Its antenna rotates with 30 rpm then.

Picture gallery of Pluto

Figure 2: Pluto integrated with Mars-402, a mobile automatic reporting post.