Model HT-20B
HF Ultra-Lightweight Short Range Antenna 2-30 MHz

Frequency Range: 2-30 MHz
Gain: (2 MHz) -16.9 MHz, (30 MHz) -3.0 dBi
VSWR: 2.0:1 max
Polarization: Primarily Horizontal
Pattern: Omnidirectional
Deployed Size: 27′ x 120′ x 35′ H L W

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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.


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.


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.

Spec Sheet


Salt Fog MIL-STD-810, Method 509.2, Procedure I
Sand & Dust MIL-STD-810, METHOD 510.2
Input Connector Type N
Pattern, H-Plane Beamwidth, 2-12 MHz 110 Degrees Average
Pattern E-Plane Beamwidth, 2-12 MHz 140 Degrees Average
Erection Time, 2 Men 15 Minutes
Power Capability 150 Watt Avg / PEP
Gain, 2 MHz -16.9 MHz
VSWR 2.0:1 Max Across the Band
Frequency Range 2-30 MHz
Erected Dimensions, H x L x W 27′ x 120′ x 35′
Gain, 30 MHz -3.0 MHz
Shipping Volume 3.2 Cubic Feet
Temperature Rating -40 C TO +55 C
Weight 40 lbs
Shipping Weight 50 lbs
Input Impedance 50 Ohms Unbalanced
Dimentions, Stored, L x W x H 50″ x 10″ x 9″
Wind Loading 67 MPH
Beam Position 90 Degree Elevation
Polarization Primarily Horizontal