User's Manual

Table Of Contents
56 Link CX User Manual, Version A
4-4 External Antenna Installation (Optional)
This section is only used when you are installing a Link CX with an external antenna. If you are installing
a Link CX with an integral antenna, skip this section and continue with Section 4-5.
Factory-Supplied Antennas
The factory-supplied antenna consists of a 61 cm (24 in.) or 122 cm (48 in.) solid parabolic reflector
assembly, radome, band clamp, and Pole Mount. The Pole Mount is designed to attach the antenna to a
vertical tower pipe of diameter 44 to 115 mm (1.75 to 4.5 in.). It also provides adjustment ranges of
±30° (fine) Elevation and ±20° (fine) Azimuth.
For the factory-supplied antenna specifications, refer to Appendix 2.
The Link CX is usually attached to the same pole as the external antenna, as mounting the Link CX close
to the antenna preserves the low (0.5 dBm) attenuation of the factory-supplied antenna cable. Continue
with Section 4-4.1 to install the factory-supplied antenna mounting bracket and the external antenna.
Customer-Supplied Antennas
4-4.1 Installing a Factory-Supplied 4 Foot (122 cm) Antenna Mounting Bracket
Site Planning
29 For antenna mounting and planning dimensions, see Figure 4-14 and Table 4-3.
30 The antenna is normally assembled with an elevation adjustment range of +50 degrees to
-5 degrees. By inverting the mount, it can be assembled with a +5 degree to -50 degree
range. In either configuration, the antenna centerline can be offset right or left, relative to the
vertical mast pipe (see Figure 4-15) by inverting the Horizontal Tube Assembly.
Installation, maintenance and removal of antenna systems requires
qualified, experienced personnel. interWAVE installation instructions
have been written for such personnel. interWAVE disclaims any liability
or responsibility for the results of improper or unsafe installation
practices.
The Link CX may be shipped without an integral or external antenna.
For instance, the customer may wish to use a larger external antenna
for increased gain. If this is the case, mount the Link CX as detailed in
Section 4-3, and mount the customer-supplied antenna as described in
the manufacturers instructions.
To comply with FCC RF exposure requirements, antennas used with
Link CXs must be rigidly mounted on permanent outdoor structures to
provide 2 m (79 in.) or more separation from all persons during Link CX
operation. Installers should contact the antenna manufacturer for
applicable gain and type restrictions to ensure compliance.