Radar


SSPS Interference with Airport Radar


ARSR-4: Air Route Surveillance Phased array Radar

ASR-11: Airport Surveillance Radar, Terminal Area

( AN/GPN-30 )

PSR Probability of Detection: The PSR shall be capable of detecting a 1.0 m2 Radar Cross Section (RCS), Swerling 1 target to a range of 55 nmi in the clear and at the nose of the beam with a single scan Pd of 0.8 and a Probability ofFalse Alann (PFA) of 10-6 •

Operational Subclutter Visibility: Operational SCV shall be 42 dB minimum at all ranges for nonfluctuating targets.

ARSR-4

ASR-11

Band

L Band

S Band

Peak Power

25 kW

Average Power

2.1 kW

Wavelength cm

21.4-24.7

10.3-11.1

Frequency GHz

1.21-1.39

2.7-2.9

Polarization

Linear

Linear

Circular

Circular

Beam width

1.41°

1.41°

Beam Elevation

2.2°

4.8°

Coverage nm

250 nm

60 nm

Coverage km

463 km

111 km

Scan period

12 sec

12 sec

Weather map

36 sec

# deployed

43

213

NWS Supplemental Product Generator (SPG)for the ARSR-4 and ASR-11 Radars Product Specification & Interface Control Document