2-2
RF-5800H 150-WATT COMMUNICATION SYSTEM
INSTALLATION
2.2.1.2 Vehicular Configuration Grounding
The following are general guidelines for vehicular grounding:
• All ground straps should be as short as possible (ideally less than 12 inches [30 cm]).
• Paint, grease, rust, etc. must be removed so only bare metal is visible at grounding points. Use the chassis
frame or a welded steel body panel for the grounding point. The vehicular configuration’s mounting point
is delivered from Harris with no paint.
• Never ground to trim or hinged panels (door, hood, etc.) or to surfaces which are removed from the chassis
(dashboard, seats, etc.).
• Ground cables can be fabricated from tinned, braided copper of the correct length. Ground is provided via
shock tray ground strap.
2.2.1.3 Base Station and Transit Case Configuration Grounding
CAUTION
Inadequate or defective grounding could damage the
equipment. Do not daisy-chain ground connections, as voltage
differentials develop over long distances.
NOTE
Any artificial ground system must also be connected to the
primary power source to prevent generation of Radio
Frequency Interference (RFI) and high voltage
electromagnetic fields around the equipment.
The RF-5800H 150-Watt Base Station System ground terminal located on the RF-5051PS must be connected to a
grounded pipe (such as a copper cold water pipe), preferably where the pipe enters the ground, or a steel or copper
rod driven six to ten feet into the soil. In situations where the water table is far below the surface (such as desert or
mountainous terrain), it may be necessary to create an artificial ground system by burying steel or copper plates six
to ten inches below the transceiver location. In all cases, these grounds must be connected to both the RF-5833H-PA
with the ground strap supplied and the RF-382A using at least No. 8 copper cable directly from the ground point.
2.2.1.4 Environmental
The RF-5833H-PA will function normally in the environments listed in Table A-1.
2.2.1.5 Antenna Considerations
A number of factors should be considered before erecting an antenna. Radio signals are absorbed and reflected by
nearby obstructions such as hills, trees, buildings, and power lines. Avoid these if possible, especially when they are
in a direct line with the Radio Frequency (RF) signal path. Signal strength is usually greatest from the top of a hill,
over level terrain, or over water. Mountainous or hilly terrain may present unpredictable transmission or reception
problems. Some antennas are more directional than others, and must be correctly oriented for maximum signal gain.
A good earth ground connection and radial grounding system improves antenna performance and protects the
equipment and personnel from lightning and electrical shock.
To Next Page
Loading...
