Hy-Gain MK2 - Chapter 1: Introduction; General Description; Specifications

CHAPTER 1
The Hy-Gain TH5/MK2 is a 5 element, three band beam antenna designed
for broadband, high performance operation on the Amateur 10, 15 and 20
meter bands. Broadbanding is accomplished through the use of two fully
trapped driven elements. Stainless steel hardware and clamps are used on
all electrical connections. Hy-Gain's 50 ohm BN-86 balun and preformed feed
straps are supplied. The antenna is designed to fit masts from 1.9" to 2.5" in
diameter and can be rotated with Hy-Gain's CD-4511, Ham IV or T2X
! ri I
Frequencies of Operation: 20m
Under 2:1 VSWR
(
MHz
)
..................... 14.0-
15m 10m
21.0-21.45 28.0-29.4
Under 1.5:1 VSWR (MHz).................. 14.09-14.32 21.11-21.45 28.25-
Front-to-Back Ratio (dB) ........................19 +/-5 22+/-5 19+/-5
Average 1/2-Power Beamwidth (deg).... 67 66 66
Maximum Gain
(
dBi
)
..............................7.8 8.0 9.0
Maximum Power .................................... Maximum Legal
Lightning Protection ............................... DC Ground
Mechanical
Boom Length..................................................................................19 feet (5.8
m) Boom Diameter..........................................................................2 inches
(5.1 cm) Longest
Element..............................................................................31' 6" (9.6 m)
Longest Driven Element ` (one-half total length)
....................................................... 20m - .183 wavelength 15m -.206
wavelength 1 0m - .227 wavelength