The TLP-20 is constructed of high quality aluminum with all stainless steel hardware resulting in a lightweight and high strength antenna ideally suited for fixed or tactical systems.

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The AS-3974/TYQ-23 (V) HF Whip Antenna is a nomenclatured sectionalized fiberglass assembly consisting of six sections and a base section. This quick erect tactical antenna was designed for tactical field operations where transportability is essential and erection and disassembly must be accomplished in a minimum time by a minimum number of personnel.

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The HT-30 3 to 30 MHz antenna is used for short and medium range skywave propagation circuits. It is designed to handle 14 kW transmitters. The antenna is designed for field operations where transportability is essential and erection and disassembly must be accomplished in a minimum time by a minimum number of personnel. The equipment is stored in transportable two-man carry containers. The antenna consists of two orthogonal broadband dipole elements supported by a 30 ft. telescoping mast at the center of the structure. The elements slope radially outward and toward the ground. Each element is made of five phosphor-bronze wires in a fan shaped configuration that terminate to a resistive load to ground. The telescopic mast is pneumatically operated and is designed for rapid deployment of tactical antennas. It is a PM-456 mast that is modified to provide a 30 foot erection height for the antenna matching unit (AMU). The AMU consists of four identical RF units that match the fan dipole elements to 50 ohms.

The elements are fed using a broadband quadrature hybrid which enables the antenna to radiate either right-hand circular or left-hand circular polarization. The hybrid locate at ground level near the base of the mast. The hybrid outputs connect to the AMU by means of four RG-393 coaxial transmission lines

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Applications:

The HT-25A is a predominantly horizontally polarized, dual input antenna with a full 2 to 30 Mhz instantaneous bandwidth at each input. The antenna is formed using crossed fan-type sloping dipoles. A sectionalized mast is used to elevate the center to 21 feet. The mast also supports the unit that houses the hybrid and impedance matching devices. The antenna elements are made of vinyl coated galvanized cable to protect the elements from corrosive environments and to minimize high voltage hazards.

Features:

The HT-25A is a militarized, transportable HF antenna designed specifically for short range (0-300 miles) near vertical incident skywave circuits. The horizontal polarization permits operation over all soil types without the need for a ground screen. A hybrid feed provides two isolated broadband RF inputs suitable for receive and/or transmit applications up to 1 kW average power. Additionally, the two crossed dipoles provide polarization diversity for receiving. This lightweight antenna is rugged and easy to erect. The antenna may be erected by two men in less than one hour. The elements are stored on winder boards that contain the terminations, the permanently attached guys, grounding wires and interconnects.

Equipment Supplied:

The antenna comes equipped with radiating elements containing terminations, a dual input hybrid, a sectional mast, guys, a pivot base, anchors, ground rods, hammer, two transit cases, and two coaxial cables that provide interface connectors at the bottom of the mast.

Optional Equipment:

A crank-up or pneumatic telescoping mast, foot pump and electric compressor.

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Applications:

The HT-22 is a militarized, transportable HF antenna designed specifically for short range (0-300 miles) near vertical incident skywave circuits. The horizontal polarization permits operation over all soil types without the need for a ground screen. A hybrid feed provides two isolated broadband RF inputs suitable for receive an transmit applications up to 3 kW average power.

Features:

The HT-22 antenna provides full 2-30 Mhz operation at a VSWR of 2.3:1 or less. The antenna is fed with a two port HF hybrid. The antenna is capable of transmitting on two frequencies simultaneously at power levels up to 3 kW average, receiving on two frequencies simultaneously, and transmit on one frequency while receiving on a second frequency simultaneously. The antenna is designed to be lightweight, rugged and easy to erect. The antenna may be erected by two men in less than one hour. The masts, anchors, antenna elements, and element supports are stored in a transit frame. The elements are constructed of vinyl coated galvanized cable to protect the elements in corrosive environments.

Characteristics:

At 2 Mhz the minimum gain is -4 dBi. The gain increases to 0 dBi at 3 Mhz and above. The two radiation patterns to the two RF inputs ports have identical RF gain and pattern shape but are rotated 90 degrees in azimuth. The hybrid is located at the top of the sectionalized tubular aluminum mast.

Equipment Supplied:

The antenna comes equipped with radiating elements containing terminations, a dual input hybrid, a sectional mast, guys, a pivot base, anchors, ground rods, hammer, two transit cases, and two coaxial cables that provide interface connectors at the bottom of the mast.

Optional Equipment:

A crank-up or pneumatic telescoping mast, foot pump and electric compressor.

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Applications:

The HT-21B is designed to meet the specific requirements of the AN/TSC-122 communications shelter requirement for sloping -v antennas. It is a transportable antenna designed for rapid deployment in either of three configurations designed for support of short, medium or long range HF skywave circuits. Configuration A is for short range skywave propagation on path lengths up to 700 KM. Configuration B is used on paths ranging from 700 to 1500 KM. Configuration C is used for 1500 to 4000 KM paths. These multiple configurations and the ease of erection make the HT-21B ideally suited for changing operational environments.

Features:

The HT-21B features a telescoping fiberglass/carbon composite mast designed to meet the ease of handling and quick erection requirements of a transportable system. The HT-21B is a terminated Vee type dipole that is supported between a 40 foot telescoping mast and two 15 feet poles which also contains the termination resistive loads. The balun is located at the top of the mast. The stowed configuration of the antenna is less than 6 feet in length, weighs less than 170 pounds and stows in a small volume. The antenna is supplied with mast, guys, balun, terminations, and anchors. It offers high efficiency and excellent gain characteristics in each of the three configurations.

Characteristics:

The HT-21B provides flexible operation for short to long range circuits in the 2 to 30 Mhz band. A mast-top mounted balun provides a nominal input impedance of 50 ohms. The input VSWR is less than 2.0:1 across the 2 to 30 Mhz band for all three configurations. The antenna operates with up to 1 kW avg / 2 kW PEP RF power using an air cooled balun. Erection time for all three configuration is less than 60 minutes with two men, the time required to change from any configuration to any other is less than 30 minutes.

Equipment Supplied:

Mast, end poles, guys, antenna, balun, terminations, anchors and transit bags.

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Applications:

The HT-21 is a transportable HF antenna designed for rapid deployment in any one of three configurations for support of communications paths up to 1,000 miles. Configuration A is for short range skywave propagation on path lengths up to 300 miles. Configuration B is used on paths ranging from 200 to 500 miles. Configuration C is used for 400 to 1,000 miles paths. These multiple configurations and the ease of erection make the HT-21 ideally suited for changing operational environments.

Features:

The HT-21 features a telescoping pneumatic mast designed to meet the ease of handling and quick erection requirements of a transportable system. The mast can be extended utilizing either an air compressor or a foot operated air pump. The antenna is supplied with mast, guys, balun, terminations, anchors and two transit cases. It offers high efficiency and excellent gain characteristics in each of the three configurations.

Characteristics:

The HT-21 provides flexible operation for short to long range circuits in the 2 to 30 Mhz band. A mast-top mounted balun provides a nominal input impedance of 50 ohms. The input VSWR is less than 2.0:1 across the 2 to 30 Mhz band for all three configurations. The antenna is available in input power levels, the /1 version operates up to 1 kW avg / 2 kW PEP, the /2 version operates up to 10 kW / 20 kW PEP using an air cooled balun. Erection time for all three configuration is less than 60 minutes with two men, the time required to change from any configuration to any other is less than 30 minutes.

Equipment Supplied:

Mast, guys, antenna, balun, terminations, anchors and transit cases.

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Applications:

The HT-20T is a lightweight transportable HF antenna that provides excellent radiation characteristics for short range 0 to 300 mile circuits. The HT-20T uses two elements mounted orthogonally on the mast. The antenna can be used for transmitting and /or receiving simultaneously with approximately 30 dB isolation between the elements. The lightweight rugged design and quick erection features are ideal for meeting rapid deployment requirements. The installed geometry minimizes land area usage and permits installation in the space constraints typically encountered in an operational area.

Features:

The key to the transportable design is the lightweight telescoping mast which collapses to a transport length of 63 inches for ease of storage and handling.

Characteristics:

The primary mode of propagation is HF Near Vertical Incident Skywave (NVIS) with the maximum radiation directed toward the zenith. The antenna provides broadband operation in the 2-30 Mhz frequency range with a maximum VSWR of 2:1. The 50 ohm input impedance is achieved by a mast-top mounted hybrid feeding the dipole elements. The antenna is rated at 1 kW average, 2 kW PEP input power.

Equipment Supplied:

Equipment supplied includes the telescoping mast, element wires, balun, terminations, accessory kit and canvas carrying bag.

Optional Equipment:

Transit case.

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Applications:

The HT-20B, military nomenclature AS-4096/G, is a lightweight transportable HF antenna that provides excellent radiation characteristics for short range 0 to 300 mile circuits. The lightweight rugged design and quick erection features are ideal for meeting rapid deployment requirements. The installed geometry minimizes land area usage and permits installation in the space constraints typically encountered in an operational area.

Features:

The key to the transportable design is the ultra-lightweight sectional mast which collapses to a convenient transport length for ease of storage and handling.

Characteristics:

The primary mode of propagation is HF Near Vertical Incident Skywave (NVIS) with the maximum radiation directed toward the zenith. The antenna provides broadband operation in the 2-30 Mhz frequency range with a maximum VSWR of 2:1. The 50 ohm input impedance is achieved by a mast-top mounted balun feeding the dipole elements. The antenna is rated at 150 watt average/PEP.

Equipment Supplied:

Equipment supplied includes the telescoping mast, element wires, balun, terminations, accessory kit and canvas carrying bag.

Optional Equipment:

Transit case.

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