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            ANTENNA PRODUCTS CORPORATION LPH-89

            GENERAL DESCRIPTION


            ROTATABLE, HORIZONTAL POLARIZATION, LOG PERIODIC, MIL TYPE NUMBERED - LPH-89

            photo Antenna Products Corporation LPH-89 Applications

            The LPH-89 provides excellent reliability in medium to long range HF circuits. The rotatable antenna allows high-power communications between a fixed station and mobile station, such as ships, aircraft, or tactical deployments.

            Features

            The LPH-89 is a heavyweight rotatable log periodic antenna which has unique six-way guying that gives the twin towers added rigidity in hurricane-force winds. A base-mounted balun matches the 200 ohm antenna to the customer's 3-1/8 inch, 50 ohm input.

            Characteristics

            The LPH-89 (Military Type AS-3482/GRC) is a heavy-duty, 4-30 MHz rotatable log periodic antenna produced to U.S. Air Force and Navy standards. The alumoweld strand radiating array is completely factory preassembled with well-rounded swaged fittings enhancing reliability and high power capability. The top-mounted rotator can seek at 0.4 rpm any selected azimuth allowing for rapid acquisition of a mobile communications target. The three support booms are constructed of 6061-T6 aluminium for high strength, low weight, and good corrosion resistance.

            Equipment Supplied

            Radiation array, three support booms, rotator twin towers and guys, feedline, balun transformer, and remote control.

            Optional Equipment

            Obstruction lights, climbing devices, electric erection winch, erection kit, and computer interface.

            TECHNICAL SPECIFICATIONS
            MODEL
            LPH-89 LPH-89I
            Frequency Range
            4 - 30 MHz 2 - 30 MHz
            Power Capability
            25 kW avg/50 kW PEP 10 kW avg/20 kW PEP
            Input Impedance
            50 ohm unbalanced 50 ohm unbalanced
            VSWR
            2:1 maximum 2:1 maximum
            Input Connector
            3-1/8" EIA 3-1/8" EIA
            Gain 4-6 MHz
            9 dBi 9 dBi
            6-30 MHz
            12 dBi 12 dBi
            Front-To-Back-Ratio 4-6 MHz
            10 dB minimum 10 dB minimum
            6-30 MHz
            14 dB minimum 14 dB minimum
            Side Lobes
            13 dB 13 dB
            Rotation
            ±180°, seeks azimuth at 0.4 rpm ±180°, seeks azimuth at 0.4 rpm
            Wind Loading
            150 mph, no ice
            90 mph, 1/2" ice
            150 mph, no ice
            90 mph, 1/2" ice
            Erected Dimensions (HxLxW) 92 ft x 182 ft x 160 ft 92 ft x 182 ft x 160 ft
            Radius of Rotation
            70 ft 70 ft
            Shipping Weight
            17,000 lbs 17,000 lbs
            Shipping Volume
            970 cu ft 970 cu ft
            Specifications may change without notice

            AZIMUTH RADIATION PATTERNS
            Antenna Products Corporation LPH-89 azimuth radiation patterns


            ELEVATION RADIATION PATTERNS
            Antenna Products Corporation LPH-89 elevation radiation patterns
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