MFJ-61xx Instruction Manual End Fed Zepp Antenna
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ASSEMBLY AND INSTALLATION
Warning: Never Install an antenna where contact with electrical power lines
is possible. Serious injury or Death may occur.
The MFJ 61xx End-fed Zepp ships assembled and ready to install. The lengths of the antenna
wire and stub are quite critical and should not be changed. Use Nylon ropes to support the ends
of the antenna from suitable structures or trees. If you are using trees for end supports, be sure to
allow enough slack, or use some type of pulley and counterweight system to prevent the antenna
or rope from breaking when trees sway. Suspend the antenna with at least a 50-pound working
load nylon rope or equivalent strength weather-resistant non-metallic rope. Never use wire or
wire core rope to support the ends of any antenna. Attach the rope to the end insulators through
the empty holes. Try to keep the array ends at least five feet from metallic supports (towers,
poles, etc.).
The MFJ 61xx End-fed Zepp requires two tie-off points spaced far enough to accomodate its
width/length, and a height at least very close to ¼ wavelength. When using two antennas, try to
locate the antennas in an “L” or “T” configuration (at right angles) as illustrated in Figure 2.
(Looking Down From Above)
Figure 2
Two Antennas @ Right Angles (Suggested Optimum)
This right angle configuration provides world-wide coverage in most instances. However, your
individual site may include orientation(s) that only require you to follow the instructions for
single antenna installation, such as locating each antenna array at disassociated points on the site.
We hope you will benefit from their ease of installation, efficiency, and quality construction.
3 SUPPORTS
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4 SUPPORTS
