Hy-Gain AV-18HT, Instruction Manual

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hy-gain
308 Industrial Park Road
Starkville, MS 39759 USA
Ph:
(662) 323-9538 FAX: (662) 323655 1
I N S T R U C T I O N M A N U A L
General Description
The "Hy-Tower" is an omnidirectional, self-
supporting vertical radiator, which operates on
10 thru 80 meters. 160 meter operation is
possible with the addition of a loading coil, as
shown in Figure 13. The "Hy-Tower" is now
supplied with stainless steel hardware.
The use of stub decoupling systems allows
band switching on 10, 15, 20, 40, and 80
The stubs isolate various sections of the vertical
antenna so that an electrical 1/4-wavelength (or
odd multiple of 1/4-wavelength) exists on all
bands. On 20 meters, the 80-meter section acts
as a 3/4-wave radiator.
The tilting base of the "Hy-Tower" allows the
antenna to be completely assembled on the
ground before it is raised into position. It is
light enough for one person to assemble and for
two people to erect.
Revision 3
AV-18HT
“Hy-Tower” Vertical Antenna
10,15,20,40, and 80 Meters
Specifications
Mechanical
Total Height 53 feet (16.15m) (approximately)
Tower Construction Galvanized steel
Wind Survival 75 mph (120.7 kmph)
Hardware Stainless steel
Electrical
Pattern Characteristics Omnidirectional
Gain Unity on 20, 40, and 80 Meters
2dB on 10 and 15 Meters
Input Impedance 50 ohms
Input Power 1 kW AM; 2 kW PEP