Model LPH-0508
HF Medium Range LP Antenna 4-30 MHz 12 dBi 125 ft

Frequency Range: 4-30 MHz
Gain: 12 dBi
VSWR: 2:1 Max
Polarization: Horizontal
Size: 125′ H x 200′ L x 308′ W
Military Nomenclature: AS-4135/GRC
Model Number: LPH-0508
Part Number(s): 1500-0314-203

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The LPH-0508 is a horizontally polarized, fixed station, log periodic antenna is normally used for medium range communications in the 4-30 MHz frequency band.


The LPH-0508 has high gain and low VSWR. All RF connections are galvanic compatible and well-rounded to minimize the possibility of corona at high power levels. Multiple antennas can share common towers in custom configurations.


The LPH-0508 antenna is broadband log periodic array and will operate within the 4-30 Mhz frequency range without any adjustment or tuning.

Equipment Supplied:

Prefabricated alumoweld curtain, 2 bolted 6061-T6 aluminum towers, guy wires, anchors, balun, spare hardware.

Optional Equipment:

Galvanized tower, balun transformer, obstruction ladders, climbing devices, erection kit, and repair kit and repair tool kit. Coaxial cable, connector adapters and mating adapters.

Spec Sheet


Gain 12 dBi
Power Capability, /2 Version 10 kW avg/20 kW PEP
Height 125 Feet
Wind Loading 120 MPH
Back Lobes 14 dB Minimum
Side Lobes 14 dB Minimum
Frequency Range 4-30 MHz
VSWR 2:1 Maximum
Shipping Volume 90
Width 308 Feet
Power Capability, /3 Version 25 kW avg/50 kW PEP
Length 200 Feet
Input Impedance 50 Ohms Balanced
Shipping Weight 4,200
Power Capability, /1 Version Receiving to 1 kW avg/2 kW PEP