- 6 -
You may elect to have the tubing in a shorter length. The
aluminum tubing may be telescoped inward, outward, or removed
depending on your application. Keep in mind you want a minimum
of 2 to 8 inches of overlap between tubing sections dependant on
location and overall strength.
Guying and Raising
Some vertical antenna manufacturers indicate their antennas do not
need guying. During times of high winds or ice loading, some of
these verticals may sustain damage or fail altogether. With the
small amount of effort needed to install a four point guying system,
the risk hardly seems worth taking. A three level, four point guying
scheme provides the best mechanical advantage to prevent wind stress, regardless of direction. The
guy lines should be used during raising or lowering to minimize stress on the lower tube sections.
When using an optional
DXE-VA-BASE
Tilt Base, a three level, four point guying system is
recommended for use when the
DX-ATK65A
is used as a vertical antenna because just one set of
the guy ropes has to be loosened when you tilt the vertical antenna element downward. The
remaining guys help stabilize the vertical antenna in three directions when being raised by pulling
on the loose guys.
The
DXE-GUY1000-KIT
has been designed to be used with the
DXE-ATK65A
or other similar
vertical antennas. The guying kit is ideal for fixed or portable installations.
Figure 3
shows the suggested guying scheme for the
DXE-ATK65A
assembly when used as a
vertical antenna. Your results may vary since it depends on the length (height) of your particular
installation.
Guying of vertical masts or antennas is always recommended for stability. However, if your area
encounters severe wind velocities or icing conditions, simple additional guying will help prevent the
possibility of failure.
With the
DXE-GUY1000-KIT
, you can install four sets of guy ropes. Use the suggested no slip
knot placing the loop just above the element clamps shown in
Figure 3
. Guying should be tightened
just enough to permit the antenna to swing a few inches. The ends of the ropes are tied to the earth
anchors that are screwed into the ground at about the same angle as the ropes will be.
When using the optional
DXE-VA-BASE
Tilt Base, position the guy ropes as shown in
Figure 4
.
This will make it easy to raise or lower the vertical antenna and only one set of guy ropes needs to
be loosened. The other guy rope sets will help guide the vertical antenna on the way up by pulling
on the loose guys.
Содержание DXE-ATK65A
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