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SHXP-antennas                       

Super High X Performance Dual polarised  The ARTA SHXP antennas are designed for use in SDH radio relay systems where there are very high demands on XPD, sidelobe suppression and front-to-back ratio. These antennas may be used in areas with very high potential interference from nearby systems. The high on and off-axis cross polarisation discrimination allows that all of the possible RF channels may be utilised for both horisontal and vertical polarisation making this antenna ideal for use at nodal points.
The increased antenna gain may improve system margins or reduce the need for larger antennas. The antennas are dual polarised and significantly exceed ETS 300 833 Class 3.     The antennas consist of: • A parabolic aluminium reflector with a shield for sidelobe suppression. The outer surface is spray painted. Standard colour is RAL7038. • A hot dip galvanised steel antenna mount. • A buttonhook type high XPD, low VSWR antenna feed covered with microwave absorbers for maximum co-polar and cross-polar sidelobe suppression. The feed horn is sealed for pressurisation. A smooth continuous polarisation adjustment may be performed. • A flexible radome for environmental protection. Electrical specifications The electrical specifications are given in the Radiation Pattern Envelope for each type of antenna. This specification is a maximum curve, which is derived from actual measurements. The RPE is available in PDF format for each antenna. A three dimensional chart specify the cross-polarisation performance close to the main lobe of the antenna. The off-axis cross-polar sidelobes are given in the individual RPE. Tabulated values of the main characteristics are given for all frequency bands and diameters. The antennas consist of: • A parabolic aluminium reflector with a shield for sidelobe suppression. The outer surface is spray painted. Standard colour is RAL7038. • A hot dip galvanised steel antenna mount. • A buttonhook type, low VSWR antenna feed. The feed horn is sealed for pressurisation. A smooth continuous polarisation adjustment may be performed. • A flexible radome for environmental protection.

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