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Date Posted by Category User IP

2017-05-07 (UTC)

K5ZI

HF Antennas

62.sub-72-107-23.myvzw.com

Hy-Gain TH6-DXX 6-element Beam

Hy-Gain TH6-DXX 6-Element Beam, off tower, disassembled


Hy-Gain TH6-DXX Super Thunderbird 6-Element Tri-Band Beam, 10, 15 and 20 Meters. (28, 21, and 14 MHZ).

Dismounted from tower, disassembled, and stored indoors. Longest piece is 8 ft. Will fit in a regular long bed pickup, inside of a full-size SUV like a Suburban, or on an SUV roof rack. Pickup only.

Complete with all hardware, plus Hy-Gain BN4000D Balun and original manual.

Does NOT include the VHF antennas shown in the photos.

Specifications:

Input Impedance: 52 ohms

Forward Gain:
10 meters 9.5 dB
15 meters 8.5 dB
20 meters 8.0 dB

Front-to-Back ratio: 25 dB

Maximum Power Input: 1 KW AM, 2KW PEP SSB

VSWR at resonance: 1.2:1

Boom Length: 24 ft.

Boom Diameter: 2 in.

Longest Element: 31 ft. (9.5 m)

Accepts Mast: 13" to 22" (3.2 to 6.35 cm)

Maximum Wind: 100 mph (161 kph)

Wind Surface Area: 8.09 sq. ft. (0.75 sq. m)

Wind Load at 80 mph: 207 lbs. (93.9 kg)

Turning Radius: 20 ft. (6.1 m)

(Kits to add 18 MHz and 24 MHz have been available from various vendors in the past, but this is the original TH6-DXX without those modifications.)

Important Note: When reassembling the antenna you will want to clean all mating aluminum surfaces, inside and out, with 600 grit sandpaper, and coat all mating surfaces with aluminum anti-corrosion paste. Also check and clean connections in traps and elsewhere.

Pickup only. Antenna is dismounted from tower, disassembled, and stored indoors. Longest piece is 8 ft. Will fit in a regular long bed pickup, inside of a full-size SUV like a Suburban, or on an SUV roof rack.

Price: $450 or best offer.

Must pay within 3 days and must pick up within 60 days.

Bill Johnston, K5ZI

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