Dawnco P37F User manual

Antenna, sat 3.7m AZel fixed, PrimFoc fibergl (PN: P37F)
ANTENNA GAIN C band gain = 40.9 dBi, Ku band gain = 50.7 dBi
DIAMETER 3.7 meter (12 feet)
MOUNT TYPE fixed AZ-EL
ISOLATION >39 dB (on axis)
MATERIAL/PETALS 8 petals, fiberglass SMC
Stationary 3.7 meter satellite antenna, prime focus 8 piece fiberglass SMC reflector, fixed AZ/EL
mount that attaches to 6.625" OD pipe extending 72"above surface, specify feed support to hold C
or Ku feedhorn. C band gain = 40.9 dBi / Ku band gain = 50.7 dBi. Feedhorn, LNB and pipe sold
separately.
Click here for: DAWNco Phone [phone] [email protected]
P37F Install Manual
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph [phone] • Fax [phone] • [email protected]
You are entitled to the manufacturer's limited express warranty, if any, that accompanies the product. DAWNco makes no
additional or independent warranty. All other warranties, express or implied, including the warranties of merchantability and
fitness for a particular purpose are disclaimed. We do our best to be accurate. We are not responsible for any typographical,
photographic or technical errors. See "Policies for DAWNco" under the "Answers" button at the DAWNco web site.

3.4M & 3.7M
Az/El Truss Mount
H
Revised Address
1/10/02
G
Redesign & update. Removed 3.0M antenna
9/11/97
PGW
F
Pol was pole
7/11/97
PGW
E
Revised Hdw Qty On Pg 28 Per Ecn #1709 And
Added Revision Page
08/04/94
RF
-
ORIGINAL RELEASE
11/03/92
R FRYE
REV.
DESCRIPTION
DATE
APPROVED
4096-225
REVISION H
January 10, 2002
Assembly Manual
3.4M & 3.7M
Az/El Truss Mount

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
3
ASSEMBLY MANUAL
Table Of Contents
Section Title
1.0 General Information
1.1 Unpacking & Inspection
1.2 Mechanical Installation Tools
1.3 Site Selection
1.4 Foundation Requirements
2.0 Reflector And Support Structure Assembly
2.1 Reflector and Support Structure Part List
2.2 Reflector Pre- Assembly
2.3 Reflector Assembly
2.4 Brace Mount Brackets
2.5 Support Structure Assembly
3.0 Reflector Installation
3.1 Reflector Mount Part List
3.2 Canister / Elevation Rod Assembly
3.3 Reflector Positioning
4.0 Feed Installation
4.1 Feed Horn Assembly
4.2 Feed System Part List
4.3 Feed Support Assembly
4.4 Feed Installation
4.5 Feed Cover Installation
5.0 Antenna Alignment And Tuning
5.1 Elevation Adjustment
5.2 Azimuth Adjustment
5.3 Fine Tuning
5.4 Reflector Fine Adjustment

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3.4M & 3.7M Az/El TRUSS MOUNT
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SECTION 1 GENERAL INFORMATION
1.1 UNPACKING AND INSPECTION
1. UNPACKING & 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.
2. FREIGHT DAMAGE - Any damage to materials while in transit should be
immediately directed to the freight carrier. He will instruct you on the
matters regarding any freight damage claims.
3. MATERIAL - MISSING OR DAMAGED - Any questions regarding missing
or damaged materials that is not due to freight carrier should be directed

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3.4M & 3.7M Az/El TRUSS MOUNT
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1.2 MECHANICAL INSTALLATION TOOLS
HARDWARE SIZE
SAE WRENCH
SIZE
METRIC WRENCH
SIZE
MAXIMUM REC.
TORQUE
# 6 SCREW
5/16”
8 mm
8 in-lbs
1 / 4”
7 / 16”
11 mm
49 in-lbs
3 / 8”
9 / 16”
14 mm
15 ft-lbs
1 / 2”
3 / 4”
20 mm
35 ft-lbs
5 / 8”
15 / 16”
24 mm
70 ft-lbs
3 / 4”
1- 1 /8”
28 mm
220 ft-lbs
Also recommended for installation:
Adjustable Wrench 10”
Ratchet ( 3 / 8” drive)
Inclinometer
Compass
8’ ft Ladder
Gloves
1.3 SITE SELECTION
In order to achieve maximum performance of your antenna system, it is important
to select the correct location for the antenna. The following guidelines should be
observed when selecting a site for the installation.
1. The line of site to the satellite should be clear of any obstructions, such as
trees or buildings.
2. The site should be relatively flat and level for ease of installation and
access to the antenna.
3. The site should be checked for underground obstruction, such as buried
cables or pipes.
4. All local building codes should be adhered to (i.e. grounding, foundation
requirements, zoning rules, setbacks, etc.).
1.4 FOUNDATION REQUIREMENTS

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
Prodelin's recommended foundation for the antenna system is shown in figure 1.
however, each installation must be tailored to the specific requirements of the
site. It may be necessary to contact a local engineer or building department for
foundation design or approval at any particular site.
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.
PRODELIN CORPORATION DOES NOT REPRESENT OR WARRANT THAT ANY PARTICULAR DESIGN
OR SIZE OF FOUNDATION IS APPROPRIATE FOR ANY LOCALITY OR EARTH STATION INSTALLATION
SECTION 2 REFLECTOR AND SUPPORT STRUCTURE ASSEMBLY
A
B
C
SECTION A-A
A
A
3.4M
3.7M
A
B
C
24.0
66.0
66.0
24.0
72.0
72.0
6 “ SCH 80 PIPE
6.625” OD
2 x 2 x 1 / 4 HRS ANGLE
12 INCHES LONG
TYP 2 PL

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3.4M & 3.7M Az/El TRUSS MOUNT
7
REFLECTOR AND SUPPORT STRUCTURE PARTS LIST TABLE 2.1
ITEM
PART NO.
DESCRIPTION
QTY
3.4M
QTY
3.7M
1
0179-142
0179-261
REFLECTOR PETAL - W / HOLE
REFLECTOR PETAL - W / HOLE
4
4
2
0179-141
0179-260
REFLECTOR PETAL - W/O HOLE
REFLECTOR PETAL - W/O HOLE
4
4
3
0217-072
0217-073
FEED SUPPORT CLEVIS
FEED SUPPORT CLEVIS
4
4
4
0490-301
CENTER HUB
1
1
5
0156-808
CENTER PLATE
1
1
6
0211-404
0211-481
REFLECTOR SUPPORT BRKT.
REFLECTOR SUPPORT BRKT.
8
8
7
0225-405
SUPPORT BRACE - LONG
8
8
8
0225-406
SUPPORT BRACE - SHORT
8
8
9
8104-007
8
8
10
8201-043
8
8
PARTS LIST - CONTINUED
1 / 2” HEX NUT
1 / 2” FLATWASHER

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
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ITEM
PART NO.
DESCRIPTION
QTY
3.4M
QTY
3.7M
11
4
4
12
8030-010
6
6
13
8201-040
6
6
14
8202-040
6
6
15
8202-010
72
96
16
8201-042
144
192
17
8202-042
72
96
18
8102-007
72
96
NOTE: Assembly of the reflector should be on as level a surface as possible
to prevent warping or misalignment of the reflector’s parabolic shape during
assembly. Any loss of contour may affect the antenna’s signal quality. If a
level surface is not available, refer to section 5.4 for tips on how to check the
3 / 8” HEX NUT
1 / 2” LOCKWASHER
1 / 4” - 20 x 1.25 BOLT
1 / 4” FLATWASHER
1 / 4” LOCKWASHER
3 /8” -16 x 1.25 BOLT
3 / 8” FLATWASHER
3 / 8” LOCKWASHER
8202-043

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3.4M & 3.7M Az/El TRUSS MOUNT
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reflector shape and correct it, if necessary.
2.2 REFLECTOR PRE-ASSEMBLY
The reflector consists of eight interchangeable petals of compression molded
glass-fiber reinforced material. This material is very strong, yet lightweight and
easy to handle. The reflector will possess a very accurate parabolic shape when
properly assembled and will retain its shape for years under harsh
environmental conditions. The microwave reflective surface is provided by a fine
mesh screen that lies just beneath the molded surface of the petals.
2.3 REFLECTOR ASSEMBLY
STEP 1:
A) Identify the reflector petals and parts of
the reflector support structure according
to the parts list. We recommend that you
hi-lite the column for your specific antenna.
B) Note that four of the petals (item 1) have
a 1 / 2” hole thru the center. These holes
are for the feed clevises. Pre assemble
these four petals as follows.
C) Run the 1 / 2” nut (item 9) up the threads
of the clevis (item 3), and place a 1 / 2”
flatwasher (item 10) against the nut. Adjust
the nut until the distance from the far side
of the washer and the center of the clevis
hole is 2” for the 3.7M and 1.5” for the 3.4M
D) From the face of the petal, insert the clevis
assembly thru the hole in the center of the
petal. Secure with 1 / 2” hardware.
Tighten these nuts hand tight at this time.
1.5
[ 1 ]
2.0
[3]
[ 9,10 ]
[ 10,11,9 ]
[ 1 ]
3.4M
[ 1 ]
[ 10,11,9 ]
[ 9,10 ]
[3]
3.7M

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
10
STEP 2:
STEP 3:
STEP 4:
When assembling the reflector petals
(items 1,2), note the orientation of
the petals. Every other petal contains
a feed clevis.
A) Continue assembling additional petals
as above. The wooden support should
be moved as necessary to support the
weight of the petals being assembled.
Before installing the last petal, place
the center plate (item 5) on top of the
wooden support - underneath the
center of the reflector - and attach the
center hub (item 4) on top with 1 / 4”
hardware (items 12, 13, 14). Leave
[ 2 ]
Place two petals rim down on a level
surface with their flanges next to each
other. A wooden support (23.25” long
for the 3.4M and 24” for the 3.7M), such
as a 4x4, will help support the narrow
ends of the petals.
Wood
Support
[ 1 ]
[ 2 ]
See Detail
H
G
F
E
D
C
B
A
[ 16, 17, 18 ]
[ 15 ]
[ 16 ]
Alignment tabs
( 3.4M only)
A) Begin the assembly at the flange
with 3 / 8” hardware (items 15,
16, 17, 18), in holes A, B, C, etc.
Note that this illustration shows
a 3.7M petal which has eight
holes. The 3.4M petal only has
five holes.
B) Do not fully tighten bolts until
instructed. You may notice that
the hardware fits snugly in the
holes. This is to assure the
accurate alignment of the petals.
If necessary, gently tap or thread
the bolts into the holes.

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
11
2.4 BRACE MOUNT BRACKETS FOR 3.4M, AND 3.7M
3.7M
[12, 13, 14]
[ 4 ]
[ 6 ]
[ 5 ]
Wood Support
Petal

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3.4M & 3.7M Az/El TRUSS MOUNT
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3.4M
Attach the reflector support brackets
(item 6) to the reflector at locations C
and D at the left side of all eight petal
seams. Be sure that the shorter, more
pointed leg of each bracket is toward
the reflector center. Use the existing
3 / 8” hardware. Do not tighten this
hardware until instructed.
Attach the reflector support brackets
(item 6) to the reflector at locations B
and C at the left side of all eight petal
seams. Be sure that the shorter, more
pointed leg of each bracket is toward
the reflector center. Use the existing
3 / 8” hardware. Do not tighten this
hardware until instructed.
Existing 3 / 8”
Hardware
C
D
B
C
Existing 3 / 8”
Hardware
[ 6 ]

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3.4M & 3.7M Az/El TRUSS MOUNT
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2.5 SUPPORT STRUCTURE ASSEMBLY
STEP 1:
STEP 2:
STEP 3:
Rotate the Center Hub until the
elevation tab is centered over a
petal without a feed clevis.
[ 1 ]
[ 2 ]
Center Flange
Edge Flanges
Elevation Tab
Center Hub
Attach the chamfered end of the
long support brace (item 7) to the
underside of the upper ring with
3 / 8” hardware (items 15, 16, 17, 18).
Do not tighten.
Upper Ring
Center Hub
[ 16, 17, 18 ]
[ 15, 16 ]
[ 7 ]
A) Position the remaining end of the long
support brace (item 7) to the right of
the support bracket .
B) Attach brace with 3 / 8” hardware
(items 15, 16, 17, 18). Do not tighten
until instructed.
C) Attach the remaining long support braces
from each of the support brackets to the
center hub in the same manner.
[ 7 ]
Support
Brackets
[15, 16 ]
[ 16, 17, 18 ]

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
14
STEP 4:
STEP 5:
Attach one end of the short support brace
(item 8) to the lower ring on the center hub
with 3 / 8” hardware (items 15, 16, 17, 18).
Do not tighten until instructed.
A) Attach the other end of the short support
brace (item 8) to the left side of the long
brace (item 7) with 3 / 8” hardware (items
15, 16,17, 18). When all braces are
attached, begin tightening as follows.
B) Be sure the reflector is laying flat, as after
tightening the reflector structure, its shape
will be fixed. Center in the center hub by
tightening the 1 / 4” bolts to the center
plate.
Next, tighten all the hardware that
attaches the support brackets to the
reflector. Tighten the outermost bolts
securing the long braces to the support
brackets all around. Now tighten the bolts
connecting the long braces to the center
hub all the way around.
Next tighten the hardware connecting the
short brace to the long brace all around.
Finally tighten the hardware securing the
short braces to the center hub. The
assembly of the reflector and the support
structure is now complete.
Center Hub
[ 15 ]
[ 16 ]
[ 8 ]
[16,17,18 ]
Lower Ring
[ 7 ]
[ 15, 16 ]
[ 8 ]
[ 16, 17, 18 ]
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph [phone] • Fax [phone] • [email protected]

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
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SECTION 3 REFLECTOR INSTALLATION
REFLECTOR MOUNT PARTS LIST TABLE 3.1
ITEM
PART NO.
DESCRIPTION
QTY
1
0490-125
CANISTER
1
2
0168-085
ELEVATION ADJUSTMENT BLOCK
1
3
0490-100
ELEVATION STRUT - INNER
1
4
0490-306
ELEVATION STRUT - OUTER
1
5
8403-008
1/2 -13 x 4.00 U-BOLT
2
6
8317-106
5/8” x 1.50 SQ. HD BOLT
6
7
8033-012
2
8
8033-018
1
8201-030
8
10
8202-043
7
1/2 LOCKWASHER
1/2 FLATWASHER
1/2 -13 x 1.50 BOLT
1/2-13x 2.25 BOLT
9
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph [phone] • Fax [phone] • [email protected]

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
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PARTS LIST - CONTINUED
ITEM
PART NO.
DESCRIPTION
QTY
11
8104-007
5
12
8034-016
1
13
8201-039
2
14
8202-044
1
15
8105-007
7
1/2-13 HEX NUT
5/8 - 11 HEX NUT
5/8 LOCKWASHER
5/8 FLATWASHER -NARROW
5/8-11 x 2.00 BOLT
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph [phone] • Fax [phone] • [email protected]

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
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PARTS LIST - CONTINUED
ITEM
PART NO.
DESCRIPTION
QTY
16
8106-007
2
17
8201-047
2
NOTE: At least three persons are required for the installation of the antenna on
the mast. After the reflector is positioned on the canister, two can steady the
reflector while the other secures it with the u-bolts.
3.2 CANISTER & ELEVATION ASSEMBLY
STEP 1:
STEP 2:
3/4 - 10HEX NUT
3/4 WASHER
Run a 1/2” hex nut (item 11) onto each
square head bolt (item 6).
Then insert them into the canister, only
a few turns, so that the bolts do not
extend into the canister. Position the
canister on the mast and insure that it
is seated all the way down on the mast
pipe and that it can rotate freely.
Canister
[ 6, 11 ]
6 PL
Mast
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph [phone] • Fax [phone] • [email protected]

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
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STEP 3:
STEP 4:
Assemble the elevation rod by inserting
the inner strut (item 3) all of the way
into the outer strut (item 4)
Inner Strut
Outer Strut
[ 8, 9 ]
[ 9, 10, 11 ]
Struts
[ 3, 4 ]
Secure the struts with 1/2” hardware
(items 8, 9, 10, 11)
A) Run one 3/4”nut (item 16) up the
threads of the inner strut and follow
with one 3/4” washer (item 17).
B) Insert the strut through the elevation
block (item 2) and secure with 3/4”
nut and washer.
[ 16, 17]
[ 2 ]
[ 16, 17 ]
Strut
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph [phone] • Fax [phone] • [email protected]

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
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3.3 REFLECTOR POSITIONING
STEP 1:
STEP 2:
Bring the completed reflector assembly
to the pedestal and locate it about 1-1/2
to 2 feet away from the mast. Make sure
that the elevation tab on the canister is
pointing towards the mast. Use the
reflector carton (or similar object) as a
rest for under the edge of the reflector.
Orient the reflector so that the cross-
tube of the center hub is perpendicular
to mast.
Mast
Center Hub
Carton
Cross - Tube
Canister
Elevation Tab
Reflector Assembly
Center Hub
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph [phone] • Fax [phone] • [email protected]

4096-225
3.4M & 3.7M Az/El TRUSS MOUNT
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STEP 3:
SECTION 4 FEED INSTALLATION
Attach the elevation rod assembly to
the elevation tab on the center hub with
5/8” hardware (items 12, 13, 14, 15) as
shown. Have the two U-bolts and 1/2”
hardware close at hand.
Elevation Rod
Assembly
[ 12, 13, 14, 15 ]
A) Swing the reflector up until the cross
tube can be placed in the cradle of
the canister.
B) Raise the reflector’s lower edge until
two persons can steady the reflector
in the cradle. Now the other installer
can secure the reflector to the canister
with the U-bolts and 1/2” hardware
(items 5, 9, 10, 11). Tighten hardware
to allow reflector to rotate in elevation.
C) Raise or lower the reflector until you
can place the elevation adjustment
block (item 2) between the two tabs
on the canister and secure with two
1/2” bolts, flatwashers and lockwashers
(items 7, 9, 10). Do not tighten these
bolts until section 5.1.
[ 7, 9, 10 ]
[ 9, 10, 11 ]
Elevation Tabs
Elevation
Rod
U-Bolt
Center Hub
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph [phone] • Fax [phone] • [email protected]