Models LP-1001 LP-1002 LP-1005 25 KW ROTATABLE HF LOG PERIODIC ANTENNAS

2024-11-12
■The LP-1001, LP-1002 and LP-1005 antenna heads are designed for medium and long range high frequency applications. These antennas provide high reliability coupled with high efficiency while exhibiting low VSWR, high effective radiated power and flexibility of use. These antennas may be mounted on a tower for fixed azimuth / path applications or mounted on a rotator where multiple azimuths can be selected. The LP-1001 and LP-1005 are log periodic dipole arrays consisting of linear dipoles from 6 through 30 MHz and inductively taper-loaded dipoles from 3-6 MHz for the LP-1005 and 4-6 MHz for the LP-1001. The LP-1002 is a log periodic consisting of linear dipoles from 6-40 MHz. These antennas are all capable of 25 kW Avg./50 kW PEP power. The design of these antennas results in antennas of minimum physical size, while providing a high efficiency antenna. They are designed to withstand the rigors of extreme environmental conditions.
■The boom support structure is manufactured of 6061-T6 aluminum extruded members secured with high strength stainless steel, galvanized steel and corrosion resistant hardware. The transmission line connecting the dipole elements is composed of a unique, balanced to unbalanced feedline terminating in a standard EIA coaxial line. The coaxial portion is air dielectric with Teflon* spacers separating the center conductor and outer conductor at specified intervals. It is recommended the transmission line be pressurized with dry air or SF 6 for high power applications The extreme ends of all coaxial transmission lines are terminated with a 15 PSI relief valve allowing automatic line purging simply by increasing line pressure to beyond 15 PSI. All radiating elements are structurally tapered telescoping aluminum tube sections providing minimum weight consistent with maximum strength and minimum drag.
■The longest four elements on the LP- 1001 and LP-1005 are base inductively loaded with helical copper coils connected to their respective transmission line and elements at stainless steel terminals. All element center insulators are composed of fiberglass for high electrical, as well as mechanical strength.

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Models LP-1001LP-1002LP-1005Models LP-1002Models LP-1005LP-1001LP1001CA

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ROTATABLE HF LOG PERIODIC ANTENNASantenna headsantenna

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2016/4/19

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