4ft Antenna SB4 Reflector Installation(NMT480-08)

7/27/2019 4ft Antenna SB4 Reflector Installation(NMT480-08)

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Sales department : Radio Frequency Systems GmbH

Kabelkamp 20, D-30179 Hannover (Germany) Tel. +49-511 676-25 20 Fax +49-511 676-25 21

Plant: RFS France Trignac Fax +33 02 40 90 41 43 1/11

Installation Instructions

4 ft CompactLine Antennas (with E-Mount)

SB, SBX (All Freq. Excepted 142) NMT 480-08(e)

These Installation Instructions are valid for antennas in the following version:

Reflector 1.2 m (4 ft)

Single orDual polarization

Pipe mount for installation on pipe 114 mm

Antenna offset to the left or to the right

Standard installation on114 mm pipe with offset to the left Safety collar for an easier installation

2 spindles for fine adjustment ofElevationof 15 andAzimuth 5 Reflector with shroud, shroud aperture covered by a rigid radome

200 km/h version : With sway bar 27 mm x 1.35 m(mandatory)

It is important to mount the antenna exactly as described in this installation instruction.The installed antenna shall be inspected once per year by qualified personnel.

RFS disclaims any responsibility for the result of improper or unsafe installation.This installation instruction has been written for qualified, skilled personnel.We reserve the right to alter details, especially with respect to technical improvement.


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NMT 480-08e 2/11

1. Tools required for installation(Tools are not included with antenna)

Hoisting device for 100 daN Shackle(s), roll(s), pulley(s) and lifting accessories

Torque wrench from 0 to 50 Nm 2 strong ropes (approx. Length 1.5x tower high)

Wrenches for hexagon bolts : 1 strong rope or cable (approx. Length 2.5x tower high)

M5(8), M6(10), M8(13), M10(17) Water balance, compass, cutter, tape measure

Key for socket screw : M3(2.5)

(values in brackets=openings of spanners)

2. Antenna Offset(Overview)

Offsetright

Rotate the reflector and thetower mount 180

Reflector TOP mark aligned withantenna BOTTOM

Reflector TOP mark alignedwith antenna TOP

Offsetleft


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NMT 480-08e 3/11

3. Assembly of the shroud

3.1 Nut and bolts detail for the shroud assembly

3.2 Reflector orientation depending of the antenna offset

23 screws M5x1223 sl nuts M5

(2x) 23 washers 5.3 15

Shroud panels / Reflectorrim Assembly

Shroud panelsjunction assembly

Shroud / Reflector r imAssembly for the2 holes 90 fromthe antenna TOP

2 screws M5x16

(2x) 2 washers 5.3 15(2x) 2 serrated lock washers 5.3

2 sl nuts M5

(3x) 3 screws M5x12(3x) 3 sl nuts M5

(3x) 6 washers 5.3 15

Packing

cove

r

Packing

cove

r

AntennaVerticalAxis

AntennaVerticalAxis

Shroud / Reflector orientation for anantenna Offset Right

Shroud / Reflector orientation for anantenna Offset Left

Reflector TOPmark in opposition with

1st shroud panel

Reflector TOPMark aligned

with the 1st shroud panel

Note : The TOP mark is visible on the outer face of the reflector.


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NMT 480-08e 4/11

3.3 Shroud panels & RF braid installation

The shroudassembly junction mustbe aligned with the

antenna bottom hole

ReflectorTOP Mark

The shroudassembly junctionmust be alignedwith the antennabottom hole

ReflectorTOP mark

ReflectorTOP markon thesame side

Reflector TOP markat the opposite side.

Middle hole ofthe shroud panelaligned with the holeof the reflector rimfacing the TOP mark

Middle hole of the

shroud panel, alignedwith the hole of thereflector rim facing theTOP mark at theopposite side

Antenna TOPshroud panel, when

the antenna isinstalled on pipe

Antenna TOPshroud panel when

the antenna isinstalled on pipe

For an optimal antenna performance, please respect carefully thepositions and the assembly order of the shroud panels. Take aspecial care of the reflectors TOP position for the assembly of the1

stshroud panel.

Do not tighten bolted joints before RF braid installation, completeshroud assembly, and radome distance check !

1st

shroud panel / Reflector pos ition foran antenna installation Offset Right

1st

shroud panel / Reflector posi tion foran antenna installation Offset Left

RF braid installationprincip le (section view)

Keep agap for

RF braidinstall

RF braid

Reflector

Shroudpanels

2nd


2nd

shroud panel / Reflector pos ition foran antenna installation Offset Left


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NMT 480-08e 5/11

4. Assembly of the radome

The shroud junction must be alignedwith the antenna vertical axis

The shroud junction must be alignedwith the antenna vertical axis

3rd


3rd

shroud panel / Reflector pos ition foran antenna installation Offset Left

RF braid ins tallation and shroud panels t ightening

- Position the radome over the shroud (drain holetowards the bottom when the antenna is installed).

- Fix the radome with 4 screwshandtight every 90around the circumference.

- Fix the remaining screws and handtighten.

-Tighten all screws.

RF braid installationprinciple (section view)

Shroud panels

Insert the RFbraid in the gapbetween theshroud and theinternal reflector

Reflector

Bolted joints

Gap

Before completetightening of the shroud

panels, check the distancebetween the last panel thread

inserts for the 3 shoud paneljunctions (to insure an easy

installation of the radome)RF braid

262 mm

Drain hole atthe antenna bottom(toward the ground

when antenna isinstalled)

Drain hole atthe antenna bottom(toward the ground

when antenna isinstalled)

OffsetRight

OffsetLeft

15 screws M5x2015 curved washers B5

15 washers 5.3 15


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NMT 480-08e 6/11

5. Assembly of the mount

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 attachedfor specifications)

5.1

5.2

5.3

5.4

ConnectingSupportMount

SteelU-Mount

4 ft

2 SL screws M10x252 washers 10.5 30

4 screws M8x254 SL washers A84 nuts M8

5.5

Turn the antenna to install it carefully on theshroud rim with the reflector facing down on theplywood packing cover.

ELEVATIONfine adjustmentSpindle M10x1002 brass nuts M10

2 washers 10.5


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NMT 480-08e 7/11

6. Feed Installation

Refer to Feed Installation Instructions joined.

7. 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 safetyregulation in effect in the country).

Activities involving the use of pulleys, ropes, carabiners and others accessories to hoistantennas and associated products are inherently dangerous. You are responsible foryour own actions and decisions. The use of hoisting systems must be done by qualifiedand skilled personnel.

Always use certified and controlled equipments, and be sure to respect the breaking loadand the working load limit of each element (pulleys, ropes, carabiners).

RFS disclaims any responsibility in case of non repect of these warnings..

For aninstallationOffset Left

For aninstallationOffset Right

Minimumfree space

on pipeabove V-Bolt

345 mm

V-bolt M102 washers 10.5 304 nuts M10(Take care of theclamp orientation)

Minimumfree space

on pipeunder V-bolt

35 mm Minimumfree spaceon pipe

above V-Bolt345 mm

Minimumfree space

on pipeunder V-bolt

35 mm

V-bolt M102 washers 10.5 30

4 nuts M10(Take care of the

clamp orientation)


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NMT 480-08e 8/11

8. Lifting of the antenna & hoisting on the tower(Feed system not shown)

Strong rope orcable fixed toantenna steel

mount to avoidcollision with the

tower structureduring hoisting

To winch

Shackle

Shackle Steelmount

Principle foran installation

with a left offset

Strong rope attached onthe reflector casting

eye (8.5 mm)with a shackle,

and linkedto winch

Strong rope fixedat the tower top.

The rope is slippingthrough a steel roll or ashackle, which is fixedon the reflector casting

eye (8.5 mm)


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NMT 480-08e 9/11

9. Antenna installation on pipe(Feed system not shown)

10. Azimuth fine adjustment spindle installation

Screw M10x30Washer 10.5SL nuts M10

Eye spindle M10x1302 washers 10.52 brass nuts M10

2 V-Bolts M10

4 washers 10.5 308 nuts M10

Antenna installation overthe 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.


with a left offset


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NMT 480-08e 10/11

11. Elevation fine adjustment(Feed system not shown)

12. Azimuth fine adjustment(Feed system not shown)

Torque tighten the 2 M10screws (refer to torque table

joined), then loosen it, turn

Loosen or tighten M10brass nuts to adjust

the Elevation

After complete elevationfine adjustment, torque

tighten the 2 M10screws


with a left offset

After complete Azimuth fine adjustment, lock each first nut of the V-bolts (greased) at thespecific torque, (refer to torque table joined) then tighten the second nut against the firstone using usual wrench (do not use 2 wrenches to fix the second nut). Then tighten the 2brass nuts M10 of the Azimuth spindle.

Loosen M10 nuts ofthe 2 V-Bolts


with a left offset

Loosen or tightenM10 brass nuts toadjust the Azimuth.


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NMT 480-08e 11/11

2 U-bolts M6/27

8 nuts M64 washers 6.4

SL nut M10Washer 10.5

Screw M10x30SL nut M10Washer 10.5Screw M10x30

Fixing plateSway bar

(sway bar kit option for installon pipe structure tower)

2 SL nuts M102 washers 10.5

2 screws M10x30

Configuration withKit : SMA-SKO-48-114

Typical configurationfor direct mount on

angle tower structure

13. Sway bar pre-assembly

14. Sway bar installation(Feed system not shown)

15. Final Check

When the installation of the antenna has been completed, it is necessary to makesure that the installation instructions have been followed in all aspects. It isespecially important to check that all bolted joints have been greased and are torquetightly locked.

For convenience the fixation of the sway bar on the tower structure must be done after completefine Azimuth & Elevation antenna alignment.

Sway bar orientationInstallation on the antenna

25 max

SL washer A10Screw M10x25

SL Nut M10Washer 10.5

Screw M10x25

Antennacasting ring

Sway bar clamp

After sway barpositioning

torque tightenall bolted joints

4ft Antenna SB4 Reflector Installation(NMT480-08)

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