RY-900B Radome Protected Yagi Antenna The Kathrein-Scala RY series are rugged broadband yagi antennas housed in rugged fiberglass radomes, fabricated of 6061/T6 aluminum rod and seamless drawn pipe, anodized for maximum reliability and corrosion resistance. The radome protects the antenna against snow, ice and other adverse environmental conditions which can degrade performance and cause damage. The hardware and fastenings are stainless steel. The internal balun, coax feed and connector are sealed in a foam potting system to prevent moisture penetration and assure long service life in severe environmental conditions. The heavy aluminum mounting casting allows installation for V or H polarization. • The RY-900B is specifically designed for professional fixed- (Shown vertically polarized) station applications in the 890–960 MHz band. Specifications: Frequency range 890–960 MHz Gain 12 dBi Impedance 50 ohms VSWR < 1.5:1 maximum (1.35:1 typical) Polarization Horizontal or vertical Front-to-back ratio >20 dB Maximum input power 100 watts (at 50°C) H-plane H-plane beamwidth 48 degrees (half-power) Horizontal pattern – V-polarization E-plane beamwidth 40 degrees (half-power) Vertical pattern – H-polarization Connector N female Weight 16.0 lb (7.3 kg) Dimensions 29 x 17 x 12 inches (737 x 432 x 305 mm) Wind load at 93 mph (150kph) Side/Top/Rear 63 lbf / 16 lbf / 37 lbf (279 N) / (69 N) / (164 N) Wind survival rating* 120 mph (200 kph) Shipping dimensions 31 x 20 x 14.5 inches (787 x 508 x 368 mm) Shipping weight 28.0 lb (12.7 kg) E-plane Mounting Mounting kits available for masts of 2.375 Horizontal pattern – H-polarization to 4.5 inch (60 to 114 mm) OD. Vertical pattern – V-polarization See reverse for order information. * Mechanical design is based on environmental conditions as stipulated in TIA-222-G-2 (December 2009) and/or ETS 300 019-1-4 which include the static mechanical load imposed on an antenna by wind at maximum velocity. See the Engineering Section of the catalog for further details. 10064-H Kathrein Inc., Scala Division Post Office Box 4580 Medford, OR 97501 (USA) Phone: (541) 779-6500 Fax: (541) 779-3991 Email: communications@kathrein.com Internet: www.kathrein-scala.com RY-900B Radome Protected Yagi Antenna 29 inches (737 mm) Top 12 inches (305 mm) Side MKPS-1 Mounting Kit 17 inches (432 mm) Mounting Options: Model Description MKPS-1 Mounting Kit for 2.375 inch (60 mm) OD mast. MKPS-2 Mounting Kit for 2.875 inch (73 mm) OD mast. MKPS-3 Mounting Kit for 3.5 inch (89 mm) OD mast. MKPS-4 Mounting Kit for 4 inch (102 mm) OD mast. MKPS-5 Mounting Kit for 4.5 inch (114 mm) OD mast. Order Information: Model Description RY-900B Radome protected yagi antenna with N connector All specifications are subject to change without notice. The latest specifications are available at www.kathrein-scala.com. Kathrein Inc., Scala Division Post Office Box 4580 Medford, OR 97501 (USA) Phone: (541) 779-6500 Fax: (541) 779-3991 Email: communications@kathrein.com Internet: www.kathrein-scala.com