HF Horizontal Rotatable Log Periodic Antenna RLPA 2-30 MHz 9-12 dBi

Frequency Range: 2-30 MHz
Gain: 9 dBi @ 4-6 MHz, 12 dBi @ 6-30 MHz
VSWR: 2:1 Max
Polarization: Horizontal
Size: 92' H x 182' L x 160' W
Model Number: LPH-89I
Military Nomenclature: AS-3482/GRC
NSN: 5985-01-093-2125

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Additional Product Info

The LPH-89I 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. The LPH-89 is a heavy weight 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″ EIA, 50 ohm input. The antenna is produced to US 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 .4 RPM, any selected azimuth allowing for rapid acquistion of a mobile communications target. The three support booms are constructed of 6061-T6 aluminum for high strength, low weight and good corrosion resistance. Equipment supplied includes the radiation array, support booms, rotator, twin towers, guys, feedline, balun and remote control box. Available optional equipment includes obstruction lights, climbing devices, electric erection winch, erection kit and computer controller interface.

Additional information





Spec Sheet


Rotation + / – 180 Degrees, At .4 RPM
Front-To-Back Ratio, 4-6 Mhz 10 dB Minimum
Power Capability 10 KW Avg / 20 KW PEP
Gain, 6-30 Mhz 12 dBi
Side Lobes 13 dB
Front-To-Back Ratio, 6-30 Mhz 14 dB Minimum
Wind Loading 150 MPH No Ice, 90 MPH With 0.5 Inch Ice
Shipping Weight 17,000 Lbs
VSWR 2:1 Max Across the Band
Frequency Range 2-30 Mhz
Input Connector 3 1/8″ EIA
Input Impedance 50 Ohms Unbalanced
Radius of Rotation 70 Ft
Gain, 4-6 Mhz 9 dBi
Erected Dimensions, H x L x W 92 Ft x 182 Ft x 160 Ft
Shipping Volume 970 Cu Ft
Nomenclature AS-1862/FRC