Model LP-20-500 20-500 MHz. 9dBi Gain 
 

LOG PERIODIC ANTENNA

Design Features: The LP-20-500 log periodic dipole antenna uses 6063T6 ultra corrosion resistant architectural anodized aluminum alloy and designed to provide wideband directional transmission/reception of radio signals from 20-500 MHz bands. The extra spacers are used between the support booms to improve mechanical durability of antenna. The specially designed mounting arrangement results in fast installation. The antenna can be assembled in less than 10 minutes. This 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 LPA provides strong performance over the entire frequency of 20-500MHz 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.

Constructions: The LP-20-500 assembled log periodic antennas outer-most dimensions are 6 meters (20 feet) long and 7.5 meters (24.5 feet) wide. The antenna has removable elements, the longest of which is 3.75 meters. All elements are supplied in two segments for easy of shipping and handling. The elements are attached via a stainless steel nuts/bolts stud 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 coaxial cable sealed inside the support boom to make it weatherproof.

Electrical Specifications:
Frequency Range20-500 MHz.
Gain9dBi
BandwidthEntire Band
PolarizationVertical or Horizontal
Input Impedance50 Ohms
Radiation PatternDirectional
Horizontal Beamwidth -Half Power Points110 +/- 10 Degress
Front to Back Ratio14 +/- 2 dB.
VSWR1:3.0
RF Power Handling Capacity250 Watts
Input TerminationN-Female
Lightning ProtectionDC Ground

Mechanical Specifications:
Materials6063T6 Aluminum
Mounting Hardware -MaterialsMarine Grade Stainless Steel
Wind Rating180 KMPH
Overall Length6 Meters
Shipping Length3.5 Meters
Support Boom -
Material - O.D.
Aluminum
Square Tube
Elements - Materials
- Cross Section - Outer Diameter
Aluminum
Round Tube
Maximum Mount Pipe Diameter 50-100 mm (2-4 Inches)
Gross Weight40 Kgs.

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