MFJ MFJ-1890, Instruction Manual

GENERAL DESCRIPTION

WARNING

WHEN INSTALLING YOUR SYSTEM, TAKE EXTREME
CARE TO AVOID ANY ACCIDENTAL CONTACT WITH 
POWER LINES OR OVERHEAD OBSTRUCTIONS.
FAILURE TO EXERCISE THIS CARE COULD RESULT
IN SERIOUS OR FATAL INJURY

2

The Moxon Rectangle is a close-spaced 2-element Yagi consisting of a driven element
and a reflector with the element tips folded toward each other to reduce turning radius.
The Moxon features a broad cardioid pattern with roughly 3.3 dBd of foward gain and 
front to back ratio measuring -30 dB or more.  Spanning just over 12 feet and weighing 
only a few pounds, it is well suited for rooftop installations using lightweight TV hardware.

Choosing a location

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 the antenna elements.

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 reach of adults and children.
The elements can cause injury and/or severe RF burns.