Type 243
2.4m Offset Tx/Rx Antenna System
Instruction and Assembly Manual
Printed in U.S.A. 12/98 8000450-02
Premier Business Park, Crofthead Road,
Off Philips Road, Whitebirk Industrial Estate
Blackburn, Lancashire England BB1 5UE
(0254) 680444 ■ Fax (0254) 672299
1315 Industrial Park Drive, P.O. Box 1416
Smithfield, N.C. 27577 U.S.A.
Fax (919) 989-2200
Phone (919) 989-2205 (Customer Service)
(UK) Limited
EXCEPTION TO CHART ABOVE:
⁵⁄₈”x 5¹⁄₂” Round Head Square Neck Bolt (Item #2), securing antenna to mount.
Torque to 35 Ft-lbs (47 N-m).
¹⁄₂”x 1¹⁄₂” Hex Head Bolt, securing antenna halves.Torque to 35 Ft-lbs (47 N-m).
BOLT TORQUE
GRADE 5 GRADE 2
⁵⁄₁₆ IN. ³⁄₈ IN. ¹⁄₂ IN. ⁵⁄₈ IN. ³⁄₄ IN. ⁷⁄₈ IN. 10 ¹⁄₄ IN. ⁵⁄₁₆ IN. ³⁄₈ IN. ¹⁄₂ IN. ⁵⁄₈ IN. ³⁄₄ IN. ⁷⁄₈ IN.
18 31 75 150 250 350 32 6 11 20 43 92 124 175
FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS
24 42 102 203 339 474 3.6 8 15 27 58 125 168 237
N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m
GRADE 5
APPLY 18 FT-LBS (24 N-m)
OF TORQUE TO ⁵⁄₁₆ BOLT
EXAMPLES:
GRADE 2
APPLY 11 FT-LBS (15 N-m)
OF TORQUE TO ⁵⁄₁₆ BOLT
SITE SELECTION
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 satellites. A site with a clear, unobstructed view
is preferred. Also consider obstruction that may occur
in the future such as the growth of trees.Your antenna
site must be selected in advance so that you will be
able to receive the strongest signal available.To avoid
obstructions, etc., conduct an on-site survey with a
portable antenna.
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.
Before any 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 appropriate 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 “Outline Drawing” in the
Appendix “A” on page 16.
ASSEMBLY TOOLS REQUIRED
■■
Grounding Rod Clamp & Grounding Block: As required by
National Electric Code or local codes.
■■
Ground Wire: As required by National Electric Code or local
codes (length required).
■■
Coaxial Cable: Size and length required.
■■
Concrete: See “Ground Pole” section for quantity.
■■
#3 Rebar: See “Ground Pole” section for quantity.
Deformed steel per ASTM A615, Grade 40 or 60.
PREINSTALLATION CHECKLIST
1 - Compass
1 - Clinometer
1 - 9” Magnetic Bubble Level
1 - Torque Wrench
(Capacity 4 Ft-lbs - 175 Ft-lbs)
1 - ¹⁵⁄₁₆” Deep Socket (¹⁄₂”Drive)
1 - 1 ⁵⁄₁₆” Deep Socket (¹⁄₂”Drive)
1 - ³⁄₄” Socket (¹⁄₂”Drive)
1 - Ratchet Wrench (¹⁄₂”Drive)
1 - ⁷⁄₁₆” Nutdriver
1 - ⁷⁄₁₆” Box/Open End Wrench
1 - 1¹⁄₈” Open End Wrench
1 - 12” Crescent Wrench (Adjustable)
1 - ⁷⁄₁₆” Socket (For Torque Wrench)
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