<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 VLP SERIES

            GENERAL DESCRIPTION


            VERTICAL LOG PERIODIC DIPOLE ARRAYS - VLP SERIES

            photo RFS Radio Frequency Systems VLP Series This range of low angle directional antennas is available in three standard frequency bands.

            The VLP series can be customised or tailored to suit lower frequency operation and specific customer requirements or applications.

            Designed for medium to long distance operation, these vertically polarized antennas are used with a ground mat for improved low angle performance.

            Characterised by a radiation pattern that is essentially consistent at all frequencies. The VLP series rugged design ensures its suitability for wind velocities up to 230 km/hr.

            Electrically steerable arrays, comprising a number of antennas radiating from a common support mast can be supplied to suit customers specifications.

            TECHNICAL SPECIFICATIONS
            MODEL
            VLP3.5 VLP4.5 VLP5.5
            Electrical
            Frequency Range (MHz) 3.5 - 30 4.5 - 30 5.5 - 30
            Polarization
            Vertical
            Input Impedance
            300 ohm balanced or 50 ohm unbalanced
            VSWR (Average Soil)
            <2.0:1
            Gain (typical)
            3.5 to 8 MHz = 10 dBi
            8 to 30 MHz = 14 dBi
            Azimuth 3 dB Beam width (deg) 120 typical
            Front/Back ratio (dB) 14 dB typical
            Power Rating (kW) 10 kW average, 20 kW PEP
            Mechanical
            Mast Height rear (m) 48 39 30
            front (m) 10 10 10
            Ground area rear (width) (m) 35
            front (width) (m) 12
            length (m) 98 87 68
            Earth Mat Area (m) 80 x 50 70 x 45 60 x 40
            Wind Rating (km/hr) 230
            Specifications may change without notice

            AZIMUTH RADIATION PATTERNS
            RFS Radio Frequency Systems VLP Series azimuth radiation patterns


            ELEVATION RADIATION PATTERNS
            RFS Radio Frequency Systems VLP Series elevation radiation patterns


            ANTENNA PICTURE
            picture RFS Radio Frequency Systems VLP Series
            皇冠金花下载