Cossor

The Cossor Secondary Surveillance Radar (SSR) features a Large Vertical Aperture antenna, which can be mounted above a Raytheon ASR-10 SS surveillance radar array. This antenna offers a gain of 27 dB, a horizontal beamwidth of 2.45 ± 0.25° (3 dB), and horizontal sidelobes at -26 dB below the peak. It has an underside roll-off rate of 1.9 dB/° at the -6° point and a typical rate of 2 dB/°, with a high-angle cut-off of -4 dBi at +65°. The antenna is designed to survive winds up to 200 km/h with 40 mm of radial ice. The radar utilizes solid-state plug-in modules, transmitting at 1,030 ± 0.01 MHz with an output power of 33 dBW, and operates with an average duty cycle of 4.2% (up to 6% peak). It supports operating modes 1, 2, 3/A, B, C, and optionally Mode 4, as well as Mode S enhanced surveillance with lockout protocols and datalink. The receiver operates at 1,090 ± 0.2 MHz, offering a tangential sensitivity of -90 dBm, a 3 dB bandwidth of 9 MHz, and a dynamic range from -16 to -86 dBm, with a calculated Mean Time Between Failures (MTBF) of 3,900 hours per channel. Cossor Electronics Ltd, a Raytheon company, is the contractor for this system.

radartutorial.eu: https://www.radartutorial.eu/19.kartei/14.ssr/karte001.en.html