LPH-89I
2-30 Mhz RLPA

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.

Photos | Radiation Patterns | Printable PDF File

 

SPECIFICATION

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