CPI 1184 Series User manual

4096-224
REVISION J
August 04, 2020
ASSEMBLY MANUAL
1.8 METER
SERIES 1184 ANTENNA SYSTEM
SATCOM & Antenna Technologies
1700 Cable Drive NE
Conover, NC 28613 USA
t [phone]
f [phone]
www.cpii.com

4096-224
CPI SATCOM & Antenna Technologies 1.8M SERIES 1184
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1.8 METER SERIES 1184
ANTENNA SYSTEM
J
Updated to CPI format.
08/04/20
R.F.
I
Add Conover Address
4/19/16
RAH
H
Revised Tool/Torque Table
5/13/09
RAH
G
Revise Logo
4/16/09
RAH
F
Revised Address
1/10/02
RAH
E
Revise HDWE list page 9
11/6/00
RAH
D
Update
6/10/97
PGW
C
Revised parts list table to reflect B.O.M
1/29/97
PGW
B
Added revision page
3/10/93
R.F.
REV.
DESCRIPTION
DATE
APPROVED

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1.8M SERIES 1184 ANTENNA SYSTEM
TABLE OF CONTENTS
SECTION TITLE
I GENERAL INFORMATION
1.0 Introduction
1.1 Unpacking And Inspection
1.2 Freight Damage
1.3 Missing Or Damaged Material
1.4 Suggested Tool List
1.5 Mechanical Alignment Tools
1.6 Suggested Mast & Foundation
II ANTENNA SYSTEM
2.0 Assembly Procedure
III FEED SUPPORT
3.0 Feed Support Installation
IV ANTENNA POINTING
4.0 Alignment To Satellite
4.1 Initial Alignment
V MAINTENANCE
5.0 Maintenance Overview
5.1 Periodic Inspection
5.2 Reflector
5.3 Mount And Reflector Support
5.4 Feed And Feed Support

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SECTION I GENERAL INFORMATION
1.0 Introduction
This manual describes the assembly and installation of CPI's 1.8M Rx/Tx offset
antenna system with an Az/El mount (series number 1184). The CPI 1.8M is a
rugged, reliable antenna system, which will operate in the 10.70 to 12.75 and 13.75
to 14.50 GHz frequency bands for Ku-Band systems and 3.4 to 4.2 and 5.80 to
6.73 GHz frequency bands for C-Band systems with high efficiency and at the
same time successfully withstand the effects of the environment.
These instructions are listed by sections that cover all areas of assembly and
installation. Additional sections are included in the manual to provide information
on antenna alignment to the satellite and maintenance.
1.1 Unpacking And Inspection
The antenna containers should be unpacked and inspected at the earliest date to
ensure that all material has been received and is in good condition. A complete
packing list for each major component is supplied.
1.2 Freight Damage
Any damage to materials while in transit should be immediately directed to the
freight carrier. He will instruct you on matters regarding any freight damageclaims.
1.3 Material - Missing Or Damaged
Any questions regarding missing or damaged materials that is not due to the freight
carrier should be directed to CPI's Customer Service Department at:
CPI SATCOM & Antenna Technologies
1700 Cable Drive NE
Conover NC 28613 USA
Phone [phone]
www.cpii.com

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1.4 Suggested Tool List
The following tools are suggested for the antenna installation.
HARDWARE SIZE
SAE WRENCH
SIZE
METRIC WRENCH
SIZE
MAXIMUM REC.
TORQUE
#10 SCREW
5/16”
7 mm
FLATTEN
LOCK WASHERS
5/16" BOLT
1/2"
13 mm
12 ft-lbs
(1.66 kg-m)
3/8” BOLT
9/16”
14 mm
20 ft-lbs
(2.80 kg-m)
1/2" BOLT
3/4"
20 mm
45 ft-lbs
(6.20 kg-m)
3/4" NUT
1-1/8"
28 mm
145 ft-lbs
(22.07 kg-m)
1" BOLT
1-1/2"
38 mm
220 ft-lbs
(30.34 kg-m)
NOTE: The Minimum Torque applied should not be less than 10% of maximum
required torque listed in the table.
1.5 Mechanical Alignment Tools
The following tools are suggested for the initial alignment to the satellite.
1) COMPASS
2) INCLINOMETER
3) 10" CRESCENT WRENCH
4) SCREWDRIVER, STANDARD BLADE

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1.6 Suggested Mast & Foundation
The required interface from the foundation to the mount is 3.5” schedule 40 pipe
(4.0” or 10.16 cm O.D.). A suggested in-ground foundation is shown in Figure 1.
FIGURE 1.
NOTES:
1. 2 x 2 x 1/4 HRS Angle and schedule 40 pipe should conform with ASTM A36 and ASTM A53 Type E and S Grade B.
2. All concrete should conform to building code standards and have a
minimum compressive strength of 3000 PSI at 28 days. (Per ACI-318-77)
3. Soil bearing capacity should be no less than 2000 PSF.
4-. Concrete should be poured against undisturbed soil.
5. Allow concrete 24 hours set time before installation of antenna.
6. The antenna should be properly grounded to meet applicable local codes.
7. Minimum depth as shown or extend to local frost line.
8. Foundation meets the design requirements as set forth by the uniform building code. (1982 edition)
(CPI DOES NOT REPRESENT OR WARRANT THAT ANY PARTICULAR DESIGN OR SIZE OF FOUNDATION IS
APPROPRIATE FOR ANY LOCALITY OR EARTH STATION INSTALLATION.)
A
3.50” (8.89cm) SCH 40 PIPE
4.00”OD (10.16cm OD)
24.0”
(70cm)
2-5
TYP 2
42.0”
(107 cm)
42.0”
(107 cm)
See Note #7
A
12.0”
(30.5cm)
SECTION A-A
2” x 2” x 1 / 4” HRS Angle
12” Long (TYP 2 PLACES)
5cm x 5cm x .65 cm Angle
30.5 cm Long (TYP 2 PLACES)

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SECTION II ANTENNA ASSEMBLY
PARTS LIST - 1.8M ANTENNA ASSEMBLY
ITEM
PART NO.
DESCRIPTION
QTY
1
VARIES
1.8M REFLECTOR
1
2
0181-276
AZ/EL POSITIONER ASSEMBLY
1
3
0181-246
REFLECTOR SUPPORT TUBE
1
4
0211-417
REFLECTOR CROSS ARMS
2
5
0159-220
#10 SPACER
2
6
0156-572
ELEVATION MARKING PLATE
1
7
0211-497
ELEVATION POINTER
1
8
8043-014
4
9
8104-007
4
10
8202-043
4
11
8201-043
4
1 / 2” x 1.50” CARRIAGE BOLT
1 / 2” HEX NUT
1 / 2” LOCK WASHER
1 / 2” WASHER

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PARTS LIST - CONTINUED
ITEM
PART NO.
DESCRIPTION
QTY
12
8032-036
4
13
8032-040
4
14
8102-007
8
15
8202-042
8
16
8201-042
8
3 / 8” x 4.5” HEX BOLT
3 / 8” x 5.0” HEX BOLT
3 / 8” HEX NUT
3 / 8” LOCK WASHER
3 / 8” WASHER

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CAUTION: During the assembly procedure, the sequence of instructions must be
followed. DO NOT TIGHTEN ANY HARDWARE UNTIL INSTRUCTED.
2.0 Assembly Overview
STEP 1:
STEP 2:
A). Remove azimuth rod from positioner
assembly.
B). Set azimuth rod and related hardware
aside.
Existing Hardware
Azimuth Rod
Positioner Assembly
A). Loosen rotation bolt on top of
positioner.
B). Rotate the positioner so that the
canister plate is oriented as shown.
C). Lightly tighten rotation bolt.
90
Rotation
Bolt
Canister
Plate
Positioner

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STEP 3:
STEP 4:
STEP 5:
A). Place positioner assembly onto mast
pipe.
B). Orient the positioner assembly
approximately towards the center of
the satellite orbital arc to within +/- 10
as shown.
C). Securely tighten [8] canister screws.
Note: A grounding cable (if required)
can be attached to any of the
canister screws.
D). Tighten [8] lock nuts against canister.
Mast Pipe
To Satellite (within +/- 10 )
Positioner
Assembly
Canister Screws
Lock Nuts
A). Locate azimuth rod (step 1.) and loosen
the 3 / 4” nuts to allow movement of the
azimuth tube.
B). Remove 1 / 2” hardware from azimuth
tube and set aside.
1 / 2” Hardware
Azimuth Tube
3 / 4” Nuts
Azimuth
Rod
A). Locate end hole on canister plate.
B). Position azimuth tube in hole and secure
with 1 / 2” hardware from step 4.
1 / 2” Hardware
Canister Plate
Azimuth
Tube
Ground Cable
(If Required)

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STEP 6:
STEP 7:
STEP 8:
A). Rotate azimuth rod or the positioner so
that the hole in the azimuth rod and the
hole in the tab on the side of the
positioner are lined up.
B). Secure the azimuth rod to the positioner
with the 1 / 2” hardware removed in step1.
C). Lightly tighten all of the azimuth
adjustment hardware at this time.
1 / 2” Hardware
Positioner
Azimuth Rod
A). Remove 1” hardware form the reflector
support tube.
B). Remove 1 / 2” hardware from the elevation
adjustment block and set aside.
1” Hardware
Reflector
Support Tube
1 / 2” Hardware
Elevation Adjustment Block
A). Place the reflector support tube in
between the large tabs on the positioner
as shown.
B). Line up the holes on the tabs with the
holes in the reflector support tube.
C). Secure the support tube to the positioner
with the 1” hardware.
1” Hardware
Large Tabs
Reflector Support
Tube

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STEP 9:
STEP 10:
STEP 11:
A). Loosen 1 / 2” nuts on elevation rod
to allow movement of the elevation
block.
B). Slide elevation block down the
elevation rod and position the block in
between the small tabs on the
positioner so that the holes in both
block and tabs are aligned.
Elevation Rod
Elevation Block
1 / 2” Nuts
A). Secure elevation block to positioner
with 1 / 2” hardware set aside in step 7
Elevation Block
1 / 2” Hardware
Positioner
A). Remove (2) #10 screws and washers
from reflector support tube.
B). Attach elevation marking plate (item 6)
to support tube as shown with spacers
(item 5) and #10 hardware.
Note placement of spacers (item 5).
C). Tighten only until lockwashers are
flattened.
Reflector Support Tube
[ 5 ]
[ 6 ]
Positioner Asm
# 10 Hardware

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STEP 12:
STEP 13:
A). Remove (2) #10 screws and washers
from positioner assembly tab.
B). Attach elevation pointer (item 7) to tab
as shown with # 10 hardware.
C). Tighten only until lockwashers are
flattened.
[ 7 ]
# 10
Hardware
Positioner Assembly
Tab
A). Attach reflector cross arms to the
reflector support tube with 1 / 2”
hardware ( items: 8,9,10,11). Do
not tighten.
Note the orientation of reflector
mounting holes, the inner most
holes on the cross arm flanges
will be to the top and the bottom
of the reflector.
Cross Arm
[ 8 ] 4 places
Reflector Support Tube
Cross Arm
[ 9, 10, 11 ]
4 places

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STEP 14:
STEP 15:
A). Locate the top of the reflector and insert
(2) 5” bolts ( item 13 ) thru top two inner
most holes on face of reflector as shown.
Top of Reflector
[ 13 ]
A). With a person on each side of the
reflector, lift the reflector up.
B). Position the reflector so that the (2) bolts
(step 14) pass thru the two inner holes
in the top cross arm.
C). Loosely attach 3/8 ” hardware
(items,14,15,16). Note: the reflector is
fully supported at this time.
D). Insert the (2) remaining 5” bolts (item 13)
thru the remaining two holes on top of
reflector.
E). Insert the (4) 4.5” bolts (item 12) thru the
four bottom holes in reflector.
F). Secure with (items 14, 15, 16).
G). Using the torque specifications on page 6,
tighten all reflector and mount hardware,
with the exception of the 1 / 2” carriage
bolts (they will be tightened in section III)
Top of Reflector
Cross Arm
( TOP )
Cross Arm
( BOTTOM )
[ 14,15,16 ]
8 places
[ 12 ]
Reflector Support Tube
[ 13 ]

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SECTION III FEED SUPPORT ASSEMBLY
These instructions are intended as a general reference for feed support
assembly. If your antenna system has specific feed or feed support
installation instructions, please refer to them at this time.
PARTS LIST - 1.8M FEED SUPPORT
ITEM NO.
PART NO.
DESCRIPTION
QTY
1
VARIES
Feed Rod
2
2
VARIES
Feed Support Tube
1
3
8031-030
3
4
8031-026
1
5
8201-041
10
6
8202-041
6
7
8101-009
6
8
8038-006
2
5 / 16” x 3.75” Bolt
5 / 16” x 3.25” Bolt
5 / 16” Flatwasher
5 / 16” Lock Washer
5 / 16” Hex Nut
5 / 16” x .75” Carriage Bolt

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CAUTION: During the assembly procedure, the sequence of instructions must
be followed. Do Not Tighten Any Hardware Until Instructed.
Refer to the feed support parts list and the steps shown below.
STEP 1:
STEP 2:
A). Attach right and left feed rods to
the reflector with (items 3, 6, 7 )
and with (2) of ( item 5 ). See
Figure 2 and Detail A.
Feed Rods
See Detail A
A). Before attaching the feed support,
sight the bottom of the reflector with
the reflector support tube, to be sure
the reflector is centered. If not, move
the reflector left or right along the
crossarms. See Figure 3.
B). Loosely mount the bottom of the feed
support to the reflector support tube
with (2) of ( items 8, 5, 6, 7 ).
See Detail B.
Feed Support Tube
See Detail B

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STEP 3:
A). Attach feed support to the bottom of
the reflector with ( items 3, 6, 7 ) and
(2) of ( item 5 ). See Detail C.
B). Connect the feed rods to the end of
the feed support with (items 4, 6, 7)
and (2) of ( item 5 ). See detail D
C). Tighten the 1 / 2” carriage bolts to
the reflector crossarms using the
required torque specs on page 6.
D). Tighten all feed assembly hardware
using the required torque specs
on page 6.
See Detail D
Feed Rod
Feed Support
Tube
See Detail C
Reflector ( FACING )
Left Hand
Feed Rod
Right Hand
Feed Rod
FIGURE 2
Bottom of Reflector
Equal
Distance
Reflector
Support
Tube
FIGURE 3

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[ 3,5 ]
[ 5, 6, 7 ]
Reflector
Feed Rod
DETAIL A
[ 5, 6, 7 ]
Feed Support Tube
Feed Support
Brackets
[ 8 ]
[ 5, 6, 7 ]
DETAIL B
[ 4 ]
[ 5 ]
Feed Support Tube
[ 5, 6, 7 ]
Feed Rod
DETAIL D
DETAIL C
Reflector
[ 3, 5 ]
[ 5, 6, 7 ]
Feed Support Tube

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SECTION IV ANTENNA POINTING
4.0 Alignment To Satellite
CPI's 1.8 meter Az/El mount requires that the antenna be aligned to the satellite
orbital arc initially by a trained installer, after which, any future repointing to a
second satellite can be accomplished quicklyand easily byanyone with a minimum
of tools and instruction.
4.1 Initial Alignment
The 1.8 meter offset reflector contains a 22.3oelevation offset look angle.
Therefore, when the reflector aperture is perpendicular to the ground, the antenna
is actually looking 22.3oin elevation.
1) Aligning to primary satellite: Attach the inclinometer to the reflector support
ring as shown in figure 4. This surface compensates for the 22.3ooffset in
the reflector, therefore a direct reading can be taken.
2) Raise or lower the antenna to find the desired elevation by turning the 3/4"
nuts located at the elevation block. Position the top nut so that it will not
interfere with adjustment. Turn the bottom nut clockwise to increase
elevation and counterclockwise to decrease elevation.
3) After the correct elevation angle is set, rotate the antenna in azimuth by
turning the 3/4" nuts located at the azimuth adjustment tube. Turn the front
(near reflector) nut to decrease azimuth angle and the back nut to increase
azimuth angle. Rotate azimuth until a signal is reached.
4) Peak the antenna signal by fine adjustments made in both azimuth and
elevation.
5) Tighten the four (4) 3/4" nuts used for adjustments.
6) Mark satellite location: Locate the azimuth and elevation pointers, you will
find a small hole in the end of the pointers, mark the canister plate and the
elevation plate to identify the satellite location.
7) Aligning to secondary satellite: Loosen the 3/4" nuts on the azimuth
adjustment rod, using the compass rotate the antenna in azimuth to the next
satellite. Snug the 3/4" azimuth nuts at this time.