User's Manual

5
5.0 Installation and Cabling Instructions
FCC NOTICE
In order to comply with FCC Part 15 rules, the proper version of the amp
must only be used in systems that have been FCC certified. Appendix B of
this manual lists some of these certified systems. The system must be
professionally installed to ensure compliance with the Part 15 certification.
It is the responsibility of the professional installer to ensure that certified
systems be deployed in the United States (or where FCC rules apply). The
use of the amplifier in any other combination (such as co-located antennas
transmitting the same information) is expressly forbidden in accordance
with FCC rules CFR47 Part 15.204. Our web site (www.ydi.com) presents
information on other YDI systems currently certified by the FCC.
Several key factors unique to the particular installation determine the power level at the input of
the amplifier. The most important consideration is the cable loss in the transmission cable
between the radio and the pole-mounted amplifier. It is imperative that the Professional Installer
be knowledgeable about these and other factors when installing the system.
If you or your installer are not familiar with determining power levels within the transmission
system, YDI engineers will assist you in planning your system including selecting the proper
cable and antenna requirements.
SAFETY NOTICE
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment when installed as directed. This equipment should be
installed and operated with fix-mounted antennas that are installed such that the
main lobe(s) of these antennas will have a minimum of 2 meters of separation
distance between the antenna and all persons during normal operation.
The amplifier can be mast-mounted using the steel U-bolt included with the unit. Refer to
Section 11.0 for a cabling diagram. In outdoor applications, the amplifier must be installed with
the connectors facing downward. Use an open-end wrench to carefully tighten the bolts using
the included nuts. Take care not to over-tighten the bolts.
Alternatively, the amplifier can be mounted to a flat surface using any of the mounting holes on
the brackets mounting flanges. However, for maximum reliability, the connectors should be
facing downward.
It is imperative to waterproof the RF connectors on the amplifier. We recommend that you do
not seal the connectors until after all system tests have been performed. Ensure that a high
quality weather resistant electrical tape and/or another water sealant method is used. Silicon
sealants are not recommended since they are difficult to work with, do not ensure a 100%
waterproofing of the connectors and are hard to remove if ever necessary.