<th id="wwiai"><input id="wwiai"></input></th>
<dd id="wwiai"><track id="wwiai"></track></dd>
      <li id="wwiai"><tr id="wwiai"><u id="wwiai"></u></tr></li>

          <code id="wwiai"><noframes id="wwiai"><nav id="wwiai"></nav></noframes></code>
          <nav id="wwiai"></nav>

            RFS RADIO FREQUENCY SYSTEMS ST SERIES

            GENERAL DESCRIPTION


            SLOPING TRIANGLE ANTENNAS - ST SERIES

            photo RFS Radio Frequency Systems ST Series These simple low cost broadband horizontally polarized antennas are designed for medium to long range transmission or receiving applications.

            Characterised by an increase in gain and directivity when operated within the higher frequency band, the ST series provides an economical option to a full horizontal Log Periodic Dipole design.

            The antenna comprises two sloping wires resistively terminated at the centre point of the vee near ground level. The apex of the vee is supported by a suitable mast whilst the antenna is fed via a balun transformer at the mast head.

            The ST series is available with or without mast systems of which two versions are available:
            TECHNICAL SPECIFICATIONS
            MODEL
            ST330 ST530
            Electrical
            Frequency Range (MHz) 3 - 30 5 - 30
            Polarization
            Horizontal
            Power Rating-Average
            Optional to 1 kW
            VSWR
            Typically less than 2:1, Max. 2.5:1
            Radiation Pattern
            Directional
            Connector
            "N" Socket
            Mechanical
            Mast Height (m) 19 15.5
            Mast Guy Radius (m) 14 11
            Ground Dimensions Vee Length (m) 100 80
            Vee Width (m) 80 63
            Wind Rating aluminium (MA) (km/hr) 160 160
            steel (MS) (km/hr) 230 230
            Specifications may change without notice

            AZIMUTH RADIATION PATTERNS
            RFS Radio Frequency Systems ST330 azimuth radiation patterns


            ELEVATION RADIATION PATTERNS
            RFS Radio Frequency Systems ST330 elevation radiation patterns


            GAIN
            ST330 ST530
            RFS Radio Frequency Systems ST330 gain RFS Radio Frequency Systems ST530 gain


            ANTENNA PICTURE
            picture RFS Radio Frequency Systems ST Series


            ORDERING INFORMATION
            Example Model
            Power/Impedance Wind Rating Mast Requirements
            ST330*110 ST330 * 1 1 0




            1 50 W Av./50 ohm 1 160 km/h 0 None



            2 250 W Av./50 ohm 2 230 km/h 1 Mast and Stub
            Mast kit (MA)



            3 1 kW Av./50 ohm
            2 Mast and Stub
            Mast kit (MS)





            3 Mast, Stub
            Mast and Jury mast kit (MA)
            皇冠金花下载