Model HT-22
HF Transportable Short Range Antenna HV 2-30 MHz

Frequency Range: 2-30 MHz
Polarization: Horizontal and Vertical
Pattern: Omnidirectional
Deployed Size: 150′ x 150′ x 22′ H L W
Military Nomenclature: AS-4112/TSC-60
Model Number: HT-22
Part Number(s): 1500-0293-201

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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.


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.


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.

Spec Sheet


Wind 90 MPH with out ice, 50 MPH with .5 inch Radial Ice
Humidity 96 % with a temperature of 95 F
Rain MIL-STD-810, Method 506.2, Procedure I
Salt Fog MIL-STD-810, Method 509.2, Procedure I
Input Connector Type HN
Azimuth Patterns, 16 to 30 MHz +/- 3.3 Db Omni
Azimuth Patterns, 2 to 16 MHz +/-1.1 Db Omni
Gain, 5 to 30 MHz 0 dBi
Altitude Operation 12,000 feet
Deployed Size, Feet 150 x 150 x 22
VSWR, 5 to 30 MHz 2.0:1 Max
VSWR, 2 to 5 MHz 2.3:1 Max
Frequency Range 2-30 MHz
Power Capability 3 kW Average / PEP
Finish 383 CARC Paint
Stowed Weight Total 385 lbs
Gain, 2 to 3 MHz -4 dBi Minimum
Snow 40 lbs / sq ft
Stowed Size, #2 Transit Frame, Inches 48 L x 16 W x 12 H
Input Impedance 50 Ohms Unbalanced
Altitude Storage 50,000 feet
Temperature Operation -60 F to +155 F
Temperature Storage -70 F to +155 F
Stowed Size, #1 Transit Frame, Inches 75 L x 19 W x 25 H
Elevation Pattern, Above 8 MHz Gain Max at Zenith
Polarization Horizontal and Vertical
Solar Radiation MIL-STD-810, Method 505.2, Procedure II
Fungus MIL-STD-810, Method 508.3
Sand MIL-STD-810, Method 510.2, Procedure II
Vibration MIL-STD-810, Method 514.3, Procedure II
Shock MIL-STD-810, Method 516.3, Procedure IV
Elevation Pattern, Below 8 MHz Not Lower than 28 degrees Above Horizon