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    Mechanical Data Ø 2.4 M HP, HXP, SHXP Antennas: Material and Treatment

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    mdisic
    This document provides mechanical data for 2.4m HP, HXP, and SHXP antennas including dimensions, weight, interface details, alignment specifications, environmental tolerances, and wind load calculations. Key details are the antenna uses an aluminum reflector with galvanized steel components, weighs 170kg, has coarse azimuth adjustment of 50 degrees and fine adjustment of 5 degrees in both planes, and can withstand winds up to 70m/s.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Mechanical Data Ø 2.4 M HP, HXP, SHXP Antennas: Material and Treatment

    Uploaded by

    mdisic
    43 views2 pages
    This document provides mechanical data for 2.4m HP, HXP, and SHXP antennas including dimensions, weight, interface details, alignment specifications, environmental tolerances, and wind load calculations. Key details are the antenna uses an aluminum reflector with galvanized steel components, weighs 170kg, has coarse azimuth adjustment of 50 degrees and fine adjustment of 5 degrees in both planes, and can withstand winds up to 70m/s.

    Original Description:

    HP 2,4 m

    Original Title

    HP 2,4 m

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    This document provides mechanical data for 2.4m HP, HXP, and SHXP antennas including dimensions, weight, interface details, alignment specifications, environmental tolerances, and wind load calculations. Key details are the antenna uses an aluminum reflector with galvanized steel components, weighs 170kg, has coarse azimuth adjustment of 50 degrees and fine adjustment of 5 degrees in both planes, and can withstand winds up to 70m/s.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    43 views2 pages

    Mechanical Data Ø 2.4 M HP, HXP, SHXP Antennas: Material and Treatment

    Uploaded by

    mdisic
    This document provides mechanical data for 2.4m HP, HXP, and SHXP antennas including dimensions, weight, interface details, alignment specifications, environmental tolerances, and wind load calculations. Key details are the antenna uses an aluminum reflector with galvanized steel components, weighs 170kg, has coarse azimuth adjustment of 50 degrees and fine adjustment of 5 degrees in both planes, and can withstand winds up to 70m/s.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
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    Mechanical Data

    2.4 m HP, HXP, SHXP antennas


    Material and treatment
    The antenna has a parabolic aluminium reflector with a shield for sidelobe suppression. The
    reflector is spray painted. Standard colour is grey RAL7038. The mount and rear structure is
    made of hot dip galvanised steel. All screws, nuts and washers are made hot dip galvanised
    steel class 8.8. The antenna is supplied with a flexible radome. Depending on frequency band
    the feed is made of brass or hot dip brazed aluminium.
    For additional security and stability two optional support stays may be connected at the rim of
    the reflector. Further information is given in the installation manual.

    Weight and dimensions


    Dimensions in mm according to figure 1.
    1785 mm

    1518 mm

    2599 mm

    281 mm

    Weight:170 kg

    Figure 1

    Interface
    115 mm column with a minimum length of 1520 mm.

    Alignment
    Coarse
    Fine

    Azimuth + 50 (depends on column installation)


    Both planes + 5o

    Environment
    Wind
    Survival rating without permanent deformation.
    Wind speed up to 70 m/s and 25 mm radial ice.
    Maximum deflection at 45 m/s is 0.1 o.
    Temperature range -55 oC to +55 oC

    Atmosphere
    The antenna is designed to meet coastal and
    industrial atmosphere with 100% relative humidity.

    WIND
    Antenna axis

    Wind load
    Wind effect on parabolic antennas and support
    structures can be separated into two force
    components and a twisting moment as shown.
    The side axial and twisting moment forces are
    maximum values exerted on the supporting
    structure. In every case the value is the result of the
    wind from the most critical direction.

    Fa
    Fa = Axial Force
    Fs = Side Force
    Mt = Twisting Moment

    Fs
    Mt

    Wind effect on parabolic antennas


    and supporting structure.

    All forces are referenced to the mounting column of


    the antenna.
    Wind force
    Wind speed
    m

    km

    55 /s (200 /h)
    70 m/s (252 km/h)

    Axial force
    Maximum N (kp)
    14149 (1444)
    22919 (2339)

    Nera Networks AS
    Postal address
    P.O. Box 7090, N-5020 BERGEN, Norway
    Office Address
    Kokstadveien 27
    BERGEN, Norway
    Tel. +47 55 22 51 00
    Fax. +47 55 22 55 01

    Side force
    Maximum N (kp)
    6831 (697)
    11065 (1129)

    Twisting moment
    Maximum Nm (kpm)
    5303 (549)
    8709 (889)

    Revised September 24, 2001

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