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 Model LP-30-118 30-118 MHz. 8 dBi Gain 


Design Features: The LP-30-118 MIL grade log periodic dipole antenna use 6063T6 ultra corrosion resistant architectural anodized aluminum alloy and designed to provide wideband directional transmission/reception of radio signals from 30-118 MHz bands. The specially designed mounting arrangement of LP antenna results in fast installation. The extra spacers are used between the support booms to improve mechanical durability of LP antenna. The high power log periodic antenna can be assembled in less than 5 minutes by 2 technicians. This high power log periodic dipole antenna system is particular suitable for transmission, reception, monitoring, scanning and jamming applications due to its broad band design feature. This high gain high power LPA provides strong performance over the entire frequency of 30-118 MHz as the LPDA does not use loading technique to reduce the overall size of array. Powder coating of the complete log periodic antenna provides extra protection against corrosion in saline weather present in coastal areas. The shipping length of antenna is 2.6 meters making it highly suitable for mobile and tactical applications.
Constructions: The LP-30-118 assembled log periodic antennas outer-most dimensions are 4 meters long and 5 meters wide. The antenna has foldable elements, the longest of which is 2.5 meters. All the elements are supplied in two segments for easy of shipping and handling. The elements are attached via a stainless steel stud system which is fixed at each element end for attaching the same on the corresponding marked position on support boom. The log periodic antenna operates at D.C. ground with low resistance discharge path for protection against lightning and immunity to noise. The complete antenna is supplied with epoxy based powder coating finish to protect it further from severe environmental conditions All the screws, nuts and bolts of high gain log periodic dipole antenna are made of type 316 marine grade stainless steel. The LP Antenna is supplied with olive green military colour finish. The mounting arrangement of log periodic antenna permits to change the polarization from horizontal to vertical and vice-versa.
High Power Version (Optional):This high power high gain log periodic antenna can be supplied with 4KW power handling capacity. The antenna uses coaxial cable made by Times Microwave which has a low density PTFE (TEFLON) dielectric, a solid BCCAI inner conductor and tinned copper with aluminium tape as outer conductor. This high power log periodic antenna is supplied with either DIN-Female connector. The part number for this option is LPHP-30-118.

Electrical Specifications:
Frequency Range30-118 MHz.
Gain8 dBi
BandwidthEntire Band
PolarizationHorizontal or Vertical
Input Impedance50 Ohms
Radiation PatternDirectional
Horizontal Beamwidth -Half Power Points90 +/-10 Degrees
Front to Back Ratio16 +/- 2dB.
VSWR - Equal To or Better Then1:2.5
RF Power Handling Capacity500 Watts
Input TerminationN-Female or DIN-Female
Lightning ProtectionDirect Ground

Mechanical Specifications:
Antenna Materials6063T6 Aluminum
Mounting Hardware -MaterialsMarine Grade Stainless Steel
Wind Rating180 Km/Hr.
Overall Length4 Meters
Shipping Length2.6 Meters
Support Boom -
Material - O.D.
Aluminum-Square Tube
25.4mm (1 Inch)
Elements - Materials
- Cross Section - Outer Diameter
Aluminum-Round Tube
19 mm (3/4 Inch)
Insulator MaterialTeflon & Delrin
Mounting Clamps PositionAt the center of support boom
Maximum Mount Pipe Diameter 50-100 mm (2-4 Inches)
Gross Weight18 Kgs.

Environmental Specifications:
Operating Temperature(-)30 to + 70 Degrees Celsius
Storage Temperature(-)40 to + 80 Degrees Celsius
Humidity0 to 95% RH