Hy-Gain AV-18HT Instruction Manual page 27

A D D E N D U M
ENGINEERING REPORT
PHASED MULTI-BAND
VERTICALS for ADDITIONAL GAIN and
LOW ANGLE RADIATION
AMATEUR
PHASING
I N T R O D U C T I O N
The following Hy-Gain verticals are well
adapted for the phasing arrangements
shown in this reports
MODEL 18HT-S HY-TOWER
The 18HT-S is a multi-band vertical antenna
with automatic band selection of 10-80 meters
by means of a unique stub decoupling system.
The Hy-Tower with a base loading coil
operates efficiently on 160 meters. The system
is foolproof, fed directly with a single 50 ohm
coax. No guys are required for the 24 feet high,
self-supporting tower. The top mast extends
the height to 50 feet. Two units make an ideal
phased array.
MODEL 18AVT/WB-S
The 18AVT/WB-S is a multi-band trap vertical
for 10 through 80 meters. It is completely fac-
tory pre-tuned and exhibits an extremely low
angle DX radiation pattern. It is easy to as-
semble, light weight which one man can install.
A single 50 ohm coaxial feedline is required.
Two or three 18AVT/WB-S's make an
excellent phased array.