Antenna Data Sheet

0361-EX-ST-2003 Text Documents

EMS Technologies

2003-09-29ELS_63098

TYPE 180 Tx 1.8m Receive-Transmit Offset Antenna System (Sturdy Az/El mount with elevation scale) FEATURES ■ One-piece precision offset thermoset- ■ Cadmium-plated hardware for molded reflector. maximum corrosion resistance. ■ Single bolt fine elevation adjustment. ■ Designed for lightweight outdoor units (ODUs). (5 lb. or 2.3 kg max. ■ Galvanized .75 in. O.D. feed support weight) legs. ■ Includes Rx-Tx OMT/Filter assembly. ■ Factory pre-assembled mount. ■ Optonal hot dip galvanized Az/El. DESCRIPTION The Channel Master® Type 180 Tx 1.8m Offset Rx-Tx Antenna is a rugged commercial grade product suitable for the most demanding applications. The reflector is thermoset-molded for strength and surface accuracy. Molded into the rear of the reflector is a network of support ribs which not only strengthens the antenna, but also helps to sustain the critical parabolic shape necessary for transmit performance.Reflectors are available with hydrophobic coating or active de-icing for use in areas where snow buildup is a problem. The Az/El mount is constructed from heavy-gauge steel to provide a rigid support to the reflector. The Az/El mount secures the antenna to any 4.50 in. O.D. mast and prevents slippage in high winds. A specially formulated powder paint process offers excellent protection from weather-related corrosion. Hot-dip galvanizing is optional for extreme environmental conditions.

SPECIFICATIONS TYPE 180 Tx 1.8m Receive-Transmit Offset Antenna System RF PERFORMANCE Effective Aperture 1.8m (71 in.) Operating Frequency Tx 13.75 - 14.50 GHz Rx 10.70 - 12.75 GHz Polarization Linear, Orthogonal Gain (±.2 dBi) Tx 46.8 dBi @ 14.25 GHz Rx 45.3 dBi @ 11.95 GHz 3 dB Beamwidth Tx .79° @ 14.3 GHz Rx .99° @ 12.0 GHz Sidelobe Envelope (Tx, Co-Pol dBi) 1° < O < 20° 29-25 Log O 20° < O < 26.3° -3.5 26.3° < O < 48° 32-25 Log O 48° < O < 180° -10 (Typical) Antenna Cross-Polarization > 30 dB (on axis) Antenna Noise Temperature 10° El 43°K 20° El 28°K 30° El 23°K VSWR 1.3:1 Max. Isolation, Port to Port Tx 70 dB min Rx 35 dB min Feed Interface Tx WR-75 Rx WR-75 MECHANICAL PERFORMANCE Reflector Material Glass Fiber Reinforced Polyester Antenna Optics One-Piece Offset Feed Prime Focus Mount Type Elevation over Azimuth Elevation Adjustment Range 10°-70° Continuous Fine Adjustment Azimuth Adjustment Range 360° Continuous Mast Pipe Interface 4.50 in.(114 mm) Diameter Wind Loading Operational 45 mi/h (72 km/h) Survival 125 mi/h (200 km/h) Temperature -50°C to 80°C US Sales Office S m i t h fi e l d ,N o rth Carolina USA Humidity 0 to 100% (Condensing) Phone: (919) 989-2205 Atmosphere Salt, Pollutants and Contaminants as Fax: (919) 989-2200 e-mail: cmvsatsales@cmnc.com Encountered in Coastal and G e rm a ny Sales Office Industrial Areas P fo r z h e i m ,G e rmany Solar Radiation 360 BTU/h/ft 2 Tel. +49 (0) 7231-14557-0 Fax +49 (0) 7231-14557-10 Shock and Vibration As Encountered During e-mail: Shipping and Handling cmi@channel-master-int.com Web: http://www.channelmaster.com ©2001 Channel Master LLC Printed in U.S.A.2/01 (17273) Rev.A


Document Created: 2001-03-07 10:22:59
Document Modified: 2001-03-07 10:22:59
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