Like all Andrew earth station antennas, the 7.3-Meter Earth Station Antenna provides high gain and exceptional pattern characteristics. The electrical performance and excep- tional versatility provides the ability to configure the antenna with your choice of linearly- or circularly-polarized 2-port or 4-port combining network. That versatility is provided at the time of initial purchase, as well as in the future, as your satellite communication requirements evolve.
The aluminum reflector is precision formed for accuracy and strength requiring minimal assembly. The reflector assembly is 24-feet (7.3-meters) in diameter and segmented in a sixteen piece configuration to reduce shipping volume and facilitate transport to remote sites. Reflector panels are conversion coated and painted with a highly reflective white paint.
The versatile tripod mount can be purchased with either manual or motorizable capabili- ties. The tripod mount features 180 degree azimuth coverage in three continuous 120 degree overlapping ranges and executes 85 degree (5 - 90 degree) continuous eleva- tion adjustment. This large adjustment range provides non-critical foundation orientation and the ability to view geostationary satellites from horizon-to-horizon, from any location worldwide.
The motorizable tripod mount features self-aligning bearings for the elevation pivots, resulting in "zero" backlash. This mount can be operated manually, but has the ability to be upgraded for motorized operation, including steptracking/Smartrack™ applications. The motorizable mount type is indicated by the ES73 or ES73HS letters within the antenna type number. The addition of the letter "HS" within the antenna type number indicates that the mount includes High-Speed azimuth/elevation machine jackscrews. The azimuth/elevation jackscrews are equipped for integration with the optional motor drive systems. A cross-axis grounding kit is supplied with each mount to ensure electri- cal interconnectivity of the complete structure.
The aluminum enclosure and hot-dipped galvanized steel mount maintain pointing accu- racy and ensures durability and reliability. The antenna and standard manual mount with enclosure will survive 125 mph (200 km/h) wind, in any position of operation, without damage or permanent deformation in moderate coastal/industrial areas. Severe condi- tions require additional protection.
Andrew provides a complete line of available options, including motor drive systems (with power interfaces addressing domestic and international standards), remote micro- processor antenna control for motor drive systems, pressurization equipment, and inter- connecting HELIAX® cables and waveguide.
