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            FIXED VERTICAL LOG-PERIODIC ANTENNA FOR SHORTWAVE RADIO BROADCASTING

            GENERAL DESCRIPTION


            The vertically polarized log-periodic dipole antenna has a narrow, low-angle elevation plane pattern, designed for medium and long range communications.

            The antenna should be used with a ground mat for improved low angle performance.

            The vertical log-periodic antenna is characterised by a radiation pattern that is essentially constant at all frequencies.

            The antenna comprises a curtain of dipoles insulated into sections and suspended from a support mast.

            The vertical log-periodic antenna is designed for direct connection to a 300 ohm balanced open wire feeder or a 50 ohm coaxial line with a balun transformer.
            vertical log-periodic antenna


            TYPICAL RADIATION PATTERNS
            Azimuth pattern Elevation pattern
            typical azimuth pattern vertical log-periodic antenna typical elevation pattern vertical log-periodic antenna


            TYPICAL COVERAGE MAP
            typical coverage map vertical log-periodic antenna


            TECHNICAL SPECIFICATIONS
            ELECTRICAL
            Azimuth pattern directional
            Frequency ranges 2-30 / 4-30 / 6-30 MHz
            Gain 9-14 dBi
            Input impedance 50 ohm unbalanced or 300 ohm balanced
            Polarization vertical
            Power ratings 1 / 10 / 25 / 50 kW average
            Specifications may change without notice

            THIS TYPE OF ANTENNA IS AVAILABLE FROM
            Manufacturer Type number Power Level
            ASC Signal 1703 L M
            2726 L M
            Antenna Products Corporation LMV-0200/2900 L M
            LPV-1200/1600 L M
            Kintronic Laboratories, Inc. LPA-V Series
            M H
            RFS Radio Frequency Systems VLP Series
            M
            TCI Model 503 L M
            Model 507/513 L M
            Transradio SenderSysteme Berlin VLP 0636

            H
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