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EAN113-3 HF Log Periodic Circular Antenna Array 2-30 MHz

Frequency Range: 2-30 MHz
Gain: 4-11+ dBi vertical, 6-11+ dBi horizontal
VSWR: 2:1 Max
Polarization: Horizontal, Vertical
Size: 960′ diameter

 View Product Specs PDF   |   Request Quote

Not finding what you’re looking for? We can custom-build antennas to your exact specifications.
Contact us here or call 1-940-325-3301 for more information.

  • Description
  • Spec Sheet
Description

Applications:

The EAN113-3 monitor antenna is for communicating over short, medium and long range distances in the 2-30 MHz frequency range. Corrosion resistant materials are utilized throughout the antenna system, making long life possible in any climate.

Features:

The EAN113-3 is a multisectored circular array consisting of sixteen log periodic curtain antennas. Eight of the curtain antennas are horizontally polarized, the remaining eight are vertically polarized. The horizontal curtains are modified versions of the LPH-0406 log periodic antennas. Each prefabricated curtain consists of 21 dipoles supported by droppers from 2 horizontal catenaries. The modification process reduces the lower frequency coverage from 3 MHz down to 2 MHz by the addition of a termination assembly. Below three MHz, the gain rolls off and the radiation patterns broaden. Above 3 MHz the antenna is full sized, naturally resonant, efficient, and provides near constant radiation characteristics with frequency. The vertical curtains are modified versions of the LMV-0207 log monopole antennas. Each curtain consists of 11 triangular shaped radiating elements. The modification reduces the lower frequency from 3.5 MHz down to 2 MHz by the addition of a termination assembly. Below 3.5 MHz the gain begins to roll off and radiation patterns broaden. Above 3.5 MHz the antenna is full sized, naturally resonant, efficient, and provides near constant radiation characteristics with frequency.

Spec Sheet

Spec Sheet

SPECIFICATIONS

PERFORMANCE
Humidity 100%
Temperature -20 Degrees Celsius to +55 degrees Celsius
Sand & Dust MIL-STD-810, Method 510.2
Input Connector Type “N” Female
LPH-0406 Horizontal 100 Feet H X 147 Feet L X 204 Feet W
Dimensions, LMV-0207 Vertical 100 Feet H X 232.5 feet L X 120 Feet W
Wind Loading 100 MPH, no ice
Front to Back Ratio 12 dB + 3 dB Nominally, across the 3.5 to 30 MHz frequency range
Azimuth Half-Power Beamwidth, LMV-0207 130 Degrees + 10 Degrees across the 3.5 MHz to 30 MHz frequency range
VSWR 2:1 Maximum
Frequency Range 2-30 MHz
Input Impedance 50 Ohms Unbalanced
Azimuth Half-Power Beamwidth, LPH-0406 70 Degrees + 10 Degrees across the 3 MHz to 30 MHz frequency range
Altitude 9,800 feet (3,000 meters) installed
Dimensions, Circular Array Approx. 960 Feet Diameter (Guy to Guy) X 100 Feet H
Polarization Dual polarization provided by horizontal and vertical antennas
Directive Gain, LMV-0207, Vertical Minimum of 4 dBi at 2 MHz increasing to 11 dBi + 1 dB above 14 MHz
Directive Gain, LPH-0406, Horizontal Minimum of 6 dBi at 2 MHz increasing to 11 dBi + 1 dB above 14 MHz
Application Receive
SKU: EAN113-3 Categories: Antennas, HF, Omni

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