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SWR-503 (HFSWR)

Description of the radar set, tactical-technical characteristics

Figure 1: SWR-503

Figure 1: SWR-503

Specifications
frequency: 3 … 5 MHz
(HF-Band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 250 Hz
pulsewidth (τ):
receive time:
dead time:
peak power: 16 kW
average power: 1.6 kW
instrumented range: 200 NM (≙ 370 km)
range resolution:
accuracy:
beamwidth:
hits per scan:
antenna rotation:
MTBCF:
MTTR:

SWR-503 (HFSWR)

SWR-503, or HFSWR is an Over–The–Horizon Surface Wave (OTH SW) radar operating in HF-Band.

HFSWR provides simultaneous, all weather, coverage of ocean going vessels and aircraft throughout the 200 nautical mile Exclusive Economic Zone (EEZ). The radar consists of co-located transmit and receive sites and uses a floodlight beam on transmit to illuminate the surveillance area. The transmit antenna is a 7-element logarithmic-periodic monopole with a gain of 8 dB. The receive antenna is a linear array of 16 monopole doublets. The spacing between the radiating elements is 33 m. The radiated signal consists of a phase-coded pulse sequence. Directional information of the reflected target signal is obtained using a phased array antenna in association with digital beam synthesis.

Two SWR-503 HFSWR systems, manufactured by Raytheon Canada Ltd, have been operating on Canada’s East Coast since 1999.

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