Installation Instructions
4 ft CompactLine® Antennas (with E-Mount 200 km/h)
SB, SBX
NMT 480-12(e)
These installation instructions have been written for qualified, skilled personnel. The antenna shall be inspected once per year by qualified personnel to verify proper
installation, maintenance, and condition of equipment. It is important to adhere precisely to all parts of the installation instructions. RFS disclaim any responsibility
resulting from improper or unsafe installation. RFS reserves the right to alter details at any time, especially with respect to technical improvements.
These Installation Instructions are valid for antennas in the following version:
- Reflector Ø 1.2 m (4 ft)
- Single or Dual polarization
- Pipe mount for installation on pipe Ø 114 mm
- Antenna offset to the left or to the right
- Standard installation on 114 mm pipe with offset to the left
- Safety collar for an easier installation
- 2 spindles for fine adjustment of Elevation of ± 15° and Azimuth  5°
- Reflector with shroud, shroud aperture covered by a rigid radome
- 200 km/h version : With sway bar Ø 27 mm x 1.35 m (mandatory)
Sales department : Radio Frequency Systems
Kabelkamp 20, D-30179 Hannover (Germany)  Tel. +49-511 676-2520  Fax +49-511 676-2521
Plant : RFS France Trignac (France)  Tel +33 (0)2 40 45 95 45  Fax +33 (0)2 40 90 41 43
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1 - Tools required for installation
(Tools are not included with antenna)
- Hoisting device for 100 daN
- Torque wrench from 0 to 50 Nm
- Shackle(s), roll(s), pulley(s) and lifting accessories
- Wrenches for hexagon bolts : M5(8), M6(10), M8(13), M10(17), M10(16/17)
- Key for socket screw : M3(2.5), M4(3)
- Water balance, compass, cutter, tape measure
- 2 strong ropes (approx. Length 1.5x tower high)
- 1 strong rope or cable (approx. Length 2.5x tower high)
(values in brackets=openings of spanners)
2 - Antenna Offset (Overview)
Reflector TOP mark aligned
with antenna TOP
Offset
left
Offset
right
Reflector TOP mark aligned
with antenna BOTTOM
Rotate the reflector and
the tower mount 180°
NMT 480-12e
2/11
3 - Assembly of the shroud
3.1 - Nut and bolts detail for the shroud assembly
Shroud panels / Reflector
rim assembly
23 or 24 screws M5x12
23 or 24 sl nuts M5
(2x) 23 or 24 washers 5.3 15
Shroud panels
junction assembly
Shroud / Reflector rim
assembly for the
2 holes 90° from
the antenna TOP
(3x) 3 screws M5x12
(3x) 3 sl nuts M5
(3x) 6 washers 5.3 15
2 screws M5x16
(2x) 2 washers 5.3 15
(2x) 2 serrated lock washers 5.3
2 sl nuts M5
3.2 - Reflector orientation depending of the antenna offset
For an offset left
An
ten
na
Ve
rt
For an offset right
An
ten
na
ica
lA
xis
ing
ck ver
Pa co
Reflector TOP
Mark aligned
with the 1st shroud panel
Ve
rtic
al
Ax
is
ing
ck ver
Pa co
Reflector TOP
mark in opposition with
1st shroud panel
Note : The TOP mark is visible on the outer face of the reflector.
NMT 480-12e
3/11
3.3 - Shroud panels & RF braid installation
Keep a gap
for RF braid
install
Shroud
panels
For an optimal antenna performance, please respect carefully the positions and the assembly order of the shroud
panels. Take a special care of the reflector‘s TOP position for the assembly of the 1st shroud panel.
Do not tighten bolted joints before RF braid installation, complete shroud assembly, and radome distance check !
Reflector
RF braid
RF braid installation
principle (section view)
1st shroud panel position for an offset left
The panel must installed inside of the reflector
Middle hole of
the shroud panel
aligned with the hole
of the reflector rim
facing the TOP mark
Antenna TOP shroud
panel when the antenna
is installed on pipe
1st shroud panel position for an offset right
The panel must installed inside of the reflector
Antenna TOP shroud
panel, when the antenna
is installed on pipe
Middle hole of the shroud panel,
aligned with the hole of the
reflector rim facing the TOP
mark at the opposite side
Reflector
TOP mark
Reflector
TOP mark
2nd shroud panel position for an offset left
2nd shroud panel position for an offset right
Reflector
TOP Mark
The shroud assembly
junction must be aligned with
the antenna bottom hole
NMT 480-12e
The shroud assembly
junction must be aligned
with the antenna bottom hole
Reflector
TOP mark
4/11
3rd shroud panel position for an offset left
3rd shroud panel position for an offset right
The shroud junction
must be aligned with the
antenna vertical axis
The shroud junction
must be aligned with the
antenna vertical axis
RF braid installation and shroud panels tightening
262 mm
RF braid installation principle
(section view)
Shroud panels
Gap
Bolted joints
Insert the RF braid in
the gap between the
shroud and the internal
reflector rim
RF braid
Reflector
Before complete
tightening of the shroud
panels, check the distance
between the last panel thread inserts
for the 3 shoud panel junctions (to insure an
easy installation of the radome)
4 - Feed system installation* (refer to feed system installation instructions)
*For SB4-W71 and SBX4-W71, the feed system must be installed before radome installation (due to mixed mounting design). If your are not concerned, skip this step, you can install it later.
5 - Assembly of the radome (Only if feed system not already installed)
- Position the radome over the shroud (drain hole towards the bottom when the antenna is installed).
- Fix the radome with 4 screws handtight every 90° around the circumference.
- Fix the remaining screws and handtighten.
- Tighten all screws.
Offset
left
NMT 480-12e
Drain hole at
the antenna bottom
(toward the ground when
antenna is installed)
15 screws M5x20
15 curved washers B5
15 washers 5.3 15
Drain hole at
the antenna bottom
(toward the ground when
antenna is installed)
Offset
right
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6 - Assembly of the mount (Feed system not shown, if already installed at chapter 4.)
For easy operation of the bolted joints, and correct torque tightening, « Anti Seize » Installation Paste must be applied to all threads of bolts and fine adjustment spindles. After
this, keep the lubricated threads free of dust and dirt! (a Torque Table is attached for specifications)
6.1
6.2
Connecting
Support Mount
Carefully turn up the antenna to have the radome face down
6.3
4 screws M8x25
4 SL washers A8
4 nuts M8
Offset left
Offset right
6.5
6.4
Spindle M10x100
2 brass nuts M10
2 washers 10.5
2 SL screws M10x25
2 washers 10.5 Ø30
NMT 480-12e
Steel
U-Mount 4 ft
6/11
7 - Feed system installation
(Refer to Feed Installation Instructions joined)
8 - Azimuth safety collar installation on pipe support
Note that the installation of the antenna should be accomplished by qualified personnels, and well trained person in fair climatic conditions (In any case, always
respect the safety regulation in effect in the country).
Activities involving the use of pulleys, ropes, carabiners and others accessories to hoist antennas and associated products are inherently dangerous. You are
responsible for your own actions and decisions. The use of hoisting systems must be done by qualified and skilled personnel.
Always use certified and controlled equipments, and be sure to respect the breaking load and the working load limit of each element (pulleys, ropes,
carabiners…).
RFS disclaims any responsibility in case of non repect of these warnings..
For an installation
offset left
V-bolt M10
2 washers 10.5 Ø30
4 nuts M10
(Take care of the
clamp orientation)
Minimum
free space
on pipe
above V-Bolt
345 mm
For an installation
offset right
Minimum
free space
on pipe
under V-bolt
35 mm
V-bolt M10
2 washers 10.5 Ø30
4 nuts M10
(Take care of the clamp orientation)
Minimum
free space
on pipe
above V-Bolt
345 mm
Minimum
free space
on pipe
under V-bolt
35 mm
NMT 480-12e
7/11
9 - Lifting of the antenna & hoisting on the tower (Feed system not shown)
Strong rope attached on the
reflector casting eye (Ø8.5 mm)
with a shackle, and linked
to winch
Shackle
Shackle
Steel
mount
Principle for
an installation with
a left offset
Strong rope fixed at the tower top.
The rope is slipping through a steel roll
or a shackle, which is fixed on the
reflector casting eye (Ø8.5 mm)
To winch
Strong rope or cable
fixed to antenna
steel mount to avoid
collision with the
tower structure
during hoisting
NMT 480-12e
8/11
10 - Antenna installation on pipe (Feed system not shown)
2 V-Bolts M10
4 washers 10.5 30
8 nuts M10
Antenna installation over
the pre-installed azimuth
safety collar.
Do not forget to apply « Anti Seize » installation paste on V-Bolt threads.
It will insure a correct tension for the final V-Bolts torque tightening.
11 - Azimuth fine adjustment spindle installation
(rear view)
Principle for
an installation with a
left offset
Screw M10x30
Washer 10.5
SL nuts M10
NMT 480-12e
Eye spindle M10x130
2 washers 10.5
2 brass nuts M10
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12 - Elevation fine adjustment (Feed system not shown)
Principle for
an installation with
a left offset
A
Torque tighten the 2 M10 screws
(refer to torque table joined)
then loosen it, ¼ turn
B
After complete elevation fine
adjustment, torque tighten the
2 M10 screws
Loosen or tighten M10 brass nuts
to adjust the Elevation
13 - Azimuth fine adjustment (Feed system not shown)
A
Loosen M10 nuts
of the 2 V-Bolts
Principle for
an installation with
a left offset
B
Loosen or tighten M10 brass
nuts to adjust the Azimuth.
After complete Azimuth fine adjustment, lock each first nut of the V-bolts (greased) at the specific torque, (refer to torque table joined) then tighten the second nut
against the first one using usual wrench (do not use 2 wrenches to fix the second nut). Then tighten the 2 brass nuts M10 of the Azimuth spindle.
NMT 480-12e
10/11
14 - Sway bar pre-assembly
SL nut M10
Washer 10.5
Fixing clamp sway bar
(L-Profil 60x60)
Screw M10x30
Sway bar
extremity
2 U-bolts M6/27
4 washers 6.4
8 nuts M6
Screw M10x30
Washers 10.5
SL nuts M10
Typical config.
for direct mount on
angle tower structure
Fixing clamp sway bar
(L-Profil 60x60)
Alternative config.
With optional interface
SMA-SKO-UNIVERSAL
For installation on tower
pipe or angle structure
SL nut M10
Washer 10.5
Screw M10x30
Optional interface
SMA-SKO-UNIVERSAL
Fixing plate
sway bar 27
Screw M10x30
Washer 10.5
SL nut M10
15 - Sway bar installation (Feed system not shown)
For convenience the fixation of the sway bar on the tower structure must be done after complete fine Azimuth & Elevation antenna alignment.
Installation on the antenna
Sway bar orientation
Antenna
casting ring
Sway bar clamp
±25° max
SL Nut M10
Washer 10.5
Screw M10x25
SL washer 10
Screw M10x25
After sway bar
positioning torque tighten
all bolted joints
16 - Final Check
When the installation of the antenna has been completed, it is necessary to make sure that the installation instructions have been followed in all aspects. It is
especially important to check that all bolted joints have been greased and are torque tightly locked.
NMT 480-12e
11/11