351804-1 Rev. 100
COM5000-8 TECHNICAL MANUAL
2
CHAPTER 2
INSTALLATION
2.1
GENERAL
2.1.1
Government Regulations
Ensure that the use of the 5-kW Transmitter satisfies government regulation. In most countries, radio
transmitters may be adjusted only by persons holding a suitable government license or by personnel
working under their immediate supervision.
Similarly, most countries require that the power output of a transmitter not exceed that required for
satisfactory performance considering local conditions and the area to be served.
Also, frequency and power of a base station transmitter must be checked before it is placed in service, and
must be rechecked every year thereafter; the results of these checks must be recorded in a permanent log
available for inspection by government personnel.
2.1.2
Inspection
Carefully inspect the 5-kW Transmitter immediately upon receipt, and notify the shipper of any damage
incurred in transit. If damage has occurred and it is necessary to have the system serviced, return the
equipment to:
Cubic Defense Applications, Inc.
9333 Balboa Avenue
San Diego, CA. 92123
USA
Office #: (858) 505-2130
FAX #: (858) 277-1878
2.1.3
General Installation
Select the mounting location for convenience of access for electrical connections and for maintenance.
Keep the antenna cable as short as possible to minimize losses. The selected location should be clean, dry
and well ventilated. Do not locate the Transmitter in close proximity to strong electrical fields produced by
brush motors and generators, welders, etc.
The Transmitter rack cabinet may be placed on any sturdy, horizontal surface. No preliminary internal wiring
connections are required before installing the amplifier.
Make sure that adequate cooling is provided. Air intake is from the front and exhaust is from the rear
ventilated door of the rack cabinet.
Be careful to prevent exhaust air from being re-circulated into the
air intake.
The PA module fans produce an airflow of
≈
400 CFM (190 l/s) and the power supply module fans produce
an airflow of
≈
300 CFM (140 l/s). The Combiner module fans produce an airflow of
≈
220 CFM (100 l/s) and
the System Controller module fan produces an airflow of
≈
35 CFM (16 l/s). The Exciter module airflow is 15
CFM (7 l/s). The total air flow requirement is approximately 2200 CFM (1000 l/s).