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Marconi S 314

Description of the radar set, tactical-technical characteristics

Figure 1: S 314

Figure 1: Antenna SA 100

frequency: 2 900 … 3 100 MHz
pulse repetition time (PRT):
pulse repetition frequency (PRF): 200 … 1 000 Hz
pulsewidth (τ): 0.5 … 2.5 µs
receive time:
dead time:
peak power: 1 MW
average power:
instrumented range:
range resolution:
beamwidth: β= 0.75°; ε= 2.5°
hits per scan:
antenna rotation: 0.5 … 10  min⁻¹

Marconi S 314

The S 314 was an operating in S-Band coastal defense radar designed for coast watching applications. It was suitable for the detection of both ships and aircraft. The radar transmitter was fitted with an air-cooled magnetron.

The antenna was the Marconi type SA 100 with an offset horn-fed paraboloid reflector measuring 29 ft × 10 ft. The reflector was made of aluminium alloy mesh and the supporting framework. It is the same reflector as used by the 50 cm ATC-Radar Marconi S 232, but the antenna got a significant better directivity by the shorter wavelength.

The Marconi S 314 was developed around 1960.