Model LP-135-470 135 - 470 MHz 9 dBi. Gain 
 

LOG PERIODIC ANTENNA

Design Features: The LP-135-470 log periodic dipole antenna uses 6063T6 ultra corrosion resistant architectural anodized aluminium alloy and designed to provide wideband directional radio signals from 135 to 470 MHz frequency band. The complete log periodic antenna is supplied with powder coating finish to protect it further from severe environmental conditions. The extra spacers are used between the support booms to improve mechanical durability of antenna. This log periodic dipole antenna system is particular suitable for transmissions, receptions, monitoring, signal intelligence and jamming application. This high gain LPA provides strong performance over the entire frequency of 135-470MHz as the LPDA does not use loading technique to reduce the overall size of array.

Constructions: The LP-135-470 assembled log periodic antennas outer-most dimensions are 1.3 meters (4.25 feet) long and 1.1 meters (3.6 feet) wide. The antenna has removable elements, the longest of which is 0.55 meter. All elements are supplied in two segments for easy of shipping and handling. The elements are attached via a fast deployment studs & nuts system at points along the boom. The log periodic antenna operates at D.C. ground with low resistance discharge path for protection against lightning and immunity to noise. All the screws, nuts and bolts of log periodic dipole antenna are made of type 316 marine grade stainless steel. The mounting arrangement of log periodic antenna permits to change the polarization from horizontal to vertical and vice-versa.

Electrical Specifications:
Frequency Range135 - 470 MHz
Gain9 dBi.
BandwidthEntire Band
PolarizationVertical or Horizontal
Input Impedance50 Ohms
Radiation PatternDirectional
Horizontal Beamwidth -Half Power Points60 Degrees
Front to Back Ratio18 dB.
VSWR2:1
RF Power Handling Capacity250 Watts
Input TerminationN-Female
Lightning ProtectionDirect Ground

Mechanical Specifications:
MaterialsAluminum
Mounting Hardware -MaterialsStainless Steel
Wind Rating200 Km/Hr.
Overall Length1.3 Meters
Shipping Length1.4 Meters
Support Boom -
Material - O.D.
Aluminum
Square Tube
Elements - Materials
- Cross Section - Outer Diameter
Aluminum
Round Tube
Insulator MaterialTeflon & Nylon
Maximum Mount Pipe Diameter 51 mm (2 Inches)
Gross Weight5 Kgs.

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