Hy-Gain TH-1 Rotatable Dipole Instructions
3
CHOOSING A LOCATION FOR THE ANTENNA
For best performance on receiving and transmitting, mount the antenna in a clear location above
or away from buildings, towers, feedlines, utility wires, and other antennas. While your own
ingenuity and particular circumstances will determine the final mounting method, we'll pass
along a few ideas for both permanent installation and portable operation.
•
Never
mount this antenna in a location that will permit unsuspecting people to come in
contact with any part of the antenna.
•
Never
mount this antenna where a mechanical failure might allow the antenna to contact
power lines or other utility wires.
•
Always
ground the feedline to a good earth ground at the point where it enters a building for
lightning protection.
WARNING: Always mount this antenna so that it is out of the reach of adults and children.
Contact with the antenna during operation can result in severe RF burns.
Permanent Installation
The ideal installation is a rigid pole or roof mount that puts the antenna completely in the clear.
If the ideal installation is not possible, choose the best compromise. TV mast, heavy-duty rigid
electrical conduit, and steel water pipes are suitable mast materials. This antenna will mount on
masts between 1 and 1-1/2" OD. Do not use soft or thin wall masts.
Portable Operation
The Hy-Gain TH-1 may be disassembled as necessary for transporting to a temporary location.
Use a permanent marking pen to mark the tube positions for easy re-assembly.
Even for temporary or portable operation, do not be casual about selecting a suitable mast. If the
antenna falls, it will be damaged and may cause serious injury. Whatever type of installation
you choose, remember that the antenna should be installed where it can
never
be contacted by
people or animals or come in contact with power lines.
TOOLS AND TIME REQUIRED FOR ASSEMBLY
The estimated assembly time is two hours. Antenna assembly requires the following hand tools:
•
#2 Phillips screwdriver
•
5/16" nut driver for hose clamps.
•
Safety glasses.
It is also convenient if you have a short (6-8') temporary mast (1 to 1-1/2" OD) for temporary
antenna mounting for preliminary resonant frequency checks.
