Choosing A Location For The Antenna - MFJ -1796 Instruction Manual

MFJ-1796W WARC Band Vertical Antenna
MFJ-1796W (WARC) Vertical Antenna
INTRODUCTION
The basic 60 meter quarter wave vertical antenna is 44' tall and requires a reasonably good
ground or counterpoise system to function properly. The usual way to eliminate the requirement
for a complicated and space consuming ground system is to center feed a 1/2 wave (in this
example 88' tall) antenna.
MFJ solved these problems by combining efficient end loading with a balanced center feedpoint
design. The result is a physically small vertical antenna that gives good performance and does
not require any type of RF ground system.
The reduction in size is accomplished by adding separate loading coils and capacitance hats at
each end of the antenna for the HF bands. The efficient end loading coils are wound on
fiberglass forms. The high quality materials and construction of the HF loading system allows a
maximum power rating of 1500 watts on 60, 30, 17 and 12 meters. The continuous CW power
ratings are 500 watts on 60 meters, 750 watts on 30 or 12 meters and 1000 watts on 17 meters.
WARNING: Improper installation and assembly can be hazardous! Read these instructions
thoroughly before attempting to assemble, install or operate this product! High power
transmitting devices produce voltages that can cause severe burns or other injuries.

CHOOSING A LOCATION FOR THE ANTENNA

The best performance on receiving and transmitting will be obtained by mounting 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 the loading spokes or any other 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 at the point where it enters a building to a good earth ground for
lightning protection.
WARNING Always mount this antenna so that it is out of the reach of adults as well as
children. The capacitance elements can cause injury and or 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