Please Note:
A qualified structural engineer
should be consulted prior to mounting an
antenna on a tower or support structure.
Instruction Sheet
390469 Rev. F
20150722
(P)
519.756.7157
www.tacoantenna.com
MODEL SY42XR SCREEN REFLECTOR YAGI ANTENNA
INSTALLATION INSTRUCTIONS
DESCRIPTION
SY42XR models are designed to provide high‐gain and front‐to‐back ratios for point‐to‐point
service. Two multi element Yagi’s, a reflector screen and a combining harness comprise the SY42XR
antennas. Both the antennas and the combining harness are equipped with 50 ohm, threaded "N" type
connectors.
This antenna may be mounted directly onto a tubular mast of up to 4½ inches diameter with the
supplied hardware. If the antenna is being mounted on a tower, TACO tower mounting kit SY‐M* is
required.
INSTALLATION
Antenna Assembly and Mounting:
1.
Carefully unpack the antenna screens, feeds and mounting hardware, then study the Figures
showing the respective locations of the components on the final assembly in order to become
familiar with the placement of each item.
2.
Assemble the two half‐screens as shown in Figure 1, Figure 2 and Figure 3 and wrench‐tighten
the 12 securing hex screws and bolts.
3.
Assemble the two central mast clamps onto the upper and lower screen frame as shown in
Figure 1 and Figure 8.
4.
Assemble the feed onto the screen assembly as shown in Figure 1, Figure 4 and Figure 5;
wrench‐tighten the feed‐securing hex‐nuts and bolts.
5.
Assemble the braces to the screen assembly and feed as shown in Figure 1, Figure 6 and Figure
7; wrench‐tighten the securing hex screws and nuts, adjust braces until tight then lock into place
by wrench‐tightening the hex nuts.
6.
Assemble the stacking harness (see stacking configurations) and attach to antenna by hand‐
tightening the "N" type connectors.
7.
Carefully lift the antenna assembly into its desired position on the mast or tower. DO NOT allow
the antenna to swing freely and damage the feed.
8.
Assemble the central mast clamps to the mast as shown in Figure 1 and Figure 8, tightening the
clamps sufficiently to bear the weight of the antenna.
9.
Assemble the tower‐leg clamp as shown in Figure 9, locate the clamp vertically so that it is
aligned with one of the center frame members of the screen, then tighten the clamp sufficiently
to hold it in place.
