Model LPH-1A
HF Medium/Long Range RLPA 2-30 MHz 9 dBi 65 Degree

Frequency Range: 2-30 MHz
Gain: 9-12 dBi
VSWR: 2.5:1 Max
Polarization: Horizontal
Size: 63′ H x 80′ L x 60′ W

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The LPH-1A antenna is a light weight, high strength rotatable log periodic antenna which provides excellent HF performance in the 2 to 30 Mhz band. The antenna is an extended frequency range version of the LPH-1 and provides excellent reliability in medium to long range HF circuits. It allows high power communications between a fixed station and mobile station, such as ships, aircraft or tactical deployments. A rotary joint allows continuous rotation.

The antenna is suitable for use where limited space and difficult access are encountered. The antenna system is supplied with a 60 foot tall tower. Primarily constructed of aluminum with the longest single piece being 12 feet, the entire system can easily be roof mounted. A 60 foot tall self supporting tower is also available. The rotator is controlled remotely to any azimuth, with lights indicating the antenna heading.

Equipment supplied includes the radiation array, support booms, rotator, tower, guys, feedline, balun and remote control box.

Available optional equipment includes tower heights from 24 to 60 feet, obstruction lights, erection winch, erection kit, RS 232 computer controller interface, coaxial cable, connetor adapters, and mating adapters.

Spec Sheet


Rotation .3 RPM continuous
Power Capability 1 KW Avg / 2 KW PEP
Wind Loading 100 MPH No Ice, 65 MPH With 0.5 Inch Ice
Shipping Weight 1800 Lbs
VSWR 2.5:1 Max Across the Band
Frequency Range 2-30 Mhz
Radius of Rotation 40 Ft
Input Impedance 50 Ohms Unbalanced
Shipping Volume 56 Cu Ft
Erected Dimensions, H x L x W 63 Ft x 42 Ft x 71.7 Ft
Azimuth Coverage 65 Degrees Nominal
Input Connector Type N