Radar Basics - SBS-900

Figure 1: SBS-900-4 uses an antenna combination including a 3.9 meter S-band antenna (lower beacon) and a 5.5 meter X-band antenna (upper beacon).

Figure 1: SBS-900-4 uses an antenna combination including a 3.9 meter S-band antenna (lower beacon) and a 5.5 meter X-band antenna (upper beacon).

Specifications
frequency:	X-Band
pulse repetition time (PRT):
pulse repetition frequency (PRF):
pulsewidth (τ):
receive time:
dead time:
peak power:
average power:
instrumented range:
range resolution:
accuracy:
beamwidth:
hits per scan:
antenna rotation:
MTBCF:
MTTR:

The SBS-900 (Shore Based Sensor) is an operating in X-Band mast mounted and environmentally protected coastal surveillance radar system.

There are four variants:

SBS-900-1, using a single X-Band radar transceiver with intrapulse modulation and digital pulse compression;
SBS-900-2, using frequency diversity additionally;
SBS-900-3, similar to SBS-900-2 but with dual redundant transceiver;
SBS-900-4, dual band radar by using an additional S-Band-transceiver. The X-band antenna is mounted on top of the S-band antenna, 180 degrees from each other. The co-located antennas simultaneously transmit signals at both frequency bands.

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