Model HT-20T
HF Transportable Short Range Antenna 2 Element 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 85′ x 85′ H L W

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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.


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.


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.

Spec Sheet


Salt Fog MIL-STD-810, Method 509.2, Procedure I
Sand & Dust MIL-STD-810, Method 510.2
Input Connector Type N
Power Capability 1 kW / 2 kW PEP
Pattern, H-Plane Beamwidth, 2-12 MHz 110 Degrees Average
Weight 110 lbs
Pattern E-Plane Beamwidth, 2-12 MHz 140 Degrees Average
Shipping Volume 15.6 Cubic Feet
Gain, 2 MHz -16.9 MHz
Shipping Weight 160 lbs
VSWR 2.0:1 Max Across the Band
Erection Time, 2 Men 20 Minutes
Frequency Range 2-30 MHz
Erected Dimensions, H x L x W 27′ x 85′ x 85′
Gain, 30 MHz -3.0 dBi
Isolation 30 dB Average
Temperature Rating -40 C to +55 C
Input Impedance 50 Ohms Unbalanced
Dimentions, Stored, L x W x H 63″ x 24″ x 12″
Wind Loading 67 MPH
Beam Position 90 Degrees Elevation
Polarization Primarily Horizontal