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Note: The following assembly instructions are based on using a 2" OD Mounting Pipe, with the
following options: DXE-UN-43 UNUN, DXE-UN-BRKT Mounting bracket for the
UNUN, and DXE-TCB-UNFK-WR Feedpoint kit for the UNUN.
Tilt Base to Mounting Pipe
Install the Tilt Base to the 2" OD mounting pipe
using the two
DXE-SSVC-2P
V-Bolt Saddle
Clamps allowing approximately 5-1/2"
clearance between the bottom of the tilt base
plate to the ground level as shown in
Figure 1
.
The standard 1-1/2" galvanized water pipe (with
its 1.9" OD) is just fine for this application and
can usually be found at your local home
building supply store.
Make sure the Tilt Base is oriented correctly for
the direction you wish to tilt the antenna. See
Figure 6
which shows the tilt action.
Tighten the clamps evenly so the length of the
exposed threads is approximately equal. Any
clamp should be tightened evenly from side-to-
side with an equal amount of thread above each
nut.
Figure 1
Vertical Base Section
The base section is made up of an EXTREN
®
insulated mounting channel, a mounting plate with
hardware, two 2" x 3/8" U-Bolt assemblies and the base antenna section which is 2" OD thick wall,
36" long with a hole drilled at bottom end for the feedpoint hardware.
Using
Figure 2
, attach the aluminum backing plate to the back of the insulated channel. The base
hardware kit contains four 2" hex head bolts, four flat washers, four aluminum spacers, four split
washers and four nuts. From the inside of the channel, insert a 2" hex head bolt with a flat washer
through each of the middle four holes, through the backing plate. Put on the aluminum spacer, a
split washer and a plain hex nut. Tighten firmly, but not enough to crush the insulated channel.
