3
SITE SELECTION
The main objective of conducting a site survey, utilizing a compass and clinometer, is to choose a mounting location on the
roof or ground that will give you the greatest amount of swing for azimuth and elevation for present as well as future use.
A pre-installation site survey is strongly recommended because it can alert you to any “look angle”, soil, or other problems.
The first and most important consideration when choosing a prospective antenna site is whether or not the area can provide
an acceptable “look angle” at the satellite. A site with a clear, unobstructed view facing south, southeast or southwest is
required. Your antenna site must be selected in advance so that you will be able to receive the strongest signal available.
Also consider obstructions that may occur in the future such as the growth of trees. It is important to conduct an on-site sur-
vey with a portable antenna or with a compass and clinometer to avoid interference, obstructions, etc.
When selecting “look angle”, be sure to observe and take readings approximately 10° to the left and right, above and
below your selected “look angle”. Before digging is done, information regarding the possibility of underground telephone
lines, power lines, storm drains, etc., in the excavation area should be obtained from the appropriate agency.
Because soils vary widely in composition and load capacity, consult a local professional engineer to determine the appro-
priate foundation design and installation procedure. A suggested foundation design with conditions noted is included in this
manual for reference purposes only (see page 4). To assist in the foundation design, refer to Antenna Wind loads in Appen-
dix A on page 14.
Before Roof Mount installation, it must be determined that the roof used for mounting the antenna is structurally sound. If
in doubt, have it checked by an architect or structural engineer. It is the customer’s responsibility that proper construction
techniques and applicable codes are adhered to. As with any other type of construction, a local building permit may be
required before installing an antenna. It is the property owner’s responsibility to obtain any and all permits.
INTRODUCTION
Recommendations for Site Selection, Assembly Tools Required for assembly, a Pre-installation Checklist and a hardware
sorter have been included in this section to help you prepare for installing the 1.8m Offset Antenna System.
Read this section to insure optimum antenna performance and to make the assembly and installation process as efficient as
possible by having the tools and materials at hand.
ASSEMBLY TOOLS AND PRE-INSTALLATION CHECKLIST
PRE-INSTALLATION CHECKLIST
All Installations:
o Grounding Rod Clamp and Grounding Block: As required by the National Electric Code or local electric code.
o Ground Wire: #10 solid copper or as required by the National Electric Code or local electric code. (Length
required)
o Coaxial Cable: (Size and length required)
Ground Pole Installations:
o Concrete: (See Ground Pole Section for quantity.)
o #3 Rebar: (See Ground Pole Section for quantity.) Deformed steel per ASTM A615, Grade 40 or 60.
REQUIRED ASSEMBLY TOOLS
1 - Compass 1 - Torque Wrench 1- 0 mm Nut Driver
1 - Precision Clinometer 1 - Ratchet Wrench (13 mm or 1/2” Drive) 1- 0 mm Box/Open End Wrench
1 - 228 mm or 9” Magnetic Level 1 - 19 mm or 3/4” Socket (1/2” Drive)
1 - Phillips Screwdriver 1 - 19 mm or 3/4” Deep Socket (1/2” Drive)
(For bottom two Round Head Square Neck
Bolts securing Antenna to AZ/EL Cap)
To Next Page
Loading...