1.2m Installation Manual [PDF]

Zitiervorschau

Φ1.2m Parabolic Antenna Installation Manual

NOTE: 1. Please read this manual carefully before antenna installation. 2. Please take care in installation process to prevent the reflector and shield deformation. This is for Φ1.2m standard antenna and high performance antenna. Antenna installation requires qualified, experienced personnel who must operate strictly based on the requirements of this installation manual. During antenna working course, so as to ensure optimum status of antenna, experienced personnel must perform the inspection and maintenance periodically (once half a year).

Contents 1

Preparation for Antenna Installation………………...

1

1.1

Condition of Antenna Installation……………………….

1

1.2

Antenna Installation Tools……………………………….

1

1.3

Standard Accessory Torque……………………………..

1

1.4

Checking Parts of Antenna………………………………

2

2

Antenna Assembly……………………………………...

3

2.1

Fixing Hanging Bracket to Reflector……………………

3

2.2

Assembly of Reflector and Shield………………………

5

2.3

Feeder Installation………………………………………..

7

3

Antenna Installation…………………………………….

8

3.1

Anti-fall Angle Iron Installation. …………………………

8

3.2

Antenna Hoisting…………………………………………

9

3.3

Installation of Strengthening Rod……………………….

11

4

Antenna Polarization Adjustment …………………...

13

5

Antenna and ODU Connecting…………….…………

14

6

Adjustment of Antenna………………………………...

15

6.1

Azimuth Adjustment Procedure…………………………

15

6.2

Elevation Adjustment Procedure………………………..

16

7

Final Inspection…………………………………………

17

1 Preparation for Antenna Installation 1.1 Condition of Antenna Installation The diameter of mounting pipe is Ф114mm, which should be prepared by user, and vertically fixed on the position, where antenna will be mounted. There must be applicable sustaining point for fixation of strengthening rod (Please see 3.3 for detailed statement).

1.2 Antenna Installation Tools

z

Wrench (for bolts and nuts M10-M12)

z

Crossed screwdriver (for screws M4-M5)

z

Torque wrench (recommended)

1.3 Standard Accessory Torque With regards to the torque set during the antenna assembly process, supplier suggests:

Item

Type

Torque (N.m)

1

M3

1.1

2

M4

2.7

3

M5

5.5

4

M6

9.3

5

M10

23

6

M12

40

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1 Preparation for Antenna Installation 1.4 Checking Parts of Antenna High performance antenna contains all of the items indicated in figure 1, while standard antenna excludes items③ and④.

③

②

①

⑤

⑥

⑦

④

⑧

⑩

⑨

①hanging bracket（1 set）

②reflector（1 piece）

③connecting bolt for shield (14 sets)

④shield（1 piece）

⑤vaseline (1 bag)

⑥anti-seize grease (1 piece)

⑦feeder（1 piece）

⑧bolt M12×30 (4 sets)

⑨strengthening rod (1 set)

⑩assembly of connecting plate (2 pieces)

Figure 1 Indication of Items

2

2 Antenna Assembly 2.1 Fixing Hanging Bracket to Reflector 2.1.1 Before installation, please loosen the 4 bolts M5; remove orderly the spring washer, flat washer and the feeder pressing blocks, as instructed in figure 2. The above-mentioned parts will be used in Section 2.3.

Figure 2

3

2 Antenna Assembly 2.1.2 Assemble reflector ⑤ and hanging bracket ① together with four M12X30 bolts② with spring washers③ and flat washers④, see figure3.

① ② ③ ④

⑤

①hanging bracket (1 piece)

②bolt M12X30 (4 pieces) ③spring washer 12（4 pieces）

④flat washer (4 pieces)

⑤reflector (1 piece)

Figure 3 Fixing Hanging Bracket to Reflector

4

2 Antenna Assembly 2.2 Assembly of Reflector and Shield 2.2.1 The connecting holes of antenna shield and strengthening rod are corresponding. So before assembly of reflector and shield, some actions should be done to connecting plate: first loosen the bolt M10 on the connecting plate, remove the flat washer, connecting plate, flat washer, spring washer and nut orderly for use.

①bolt M10（2 pieces）②connecting plate（1 piece）

Figure 4 Indication of Connecting Plate 2.2.2 Align two red triangles on edge of reflector and bottom of shield, see figure 5. Insert connecting standard parts① ～ ⑤ into connecting holes orderly. There are two corresponding Ф10 connecting holes, which are used for the installation of standard units⑥ and connecting plates⑦. All of connecting bolts should be used up and tightened evenly in the reflector and shield assembly.

5

2 Antenna Assembly NOTE: If left installation is chosen, please rotate the shield 180°, and align the red triangle on the shield and the one at the other side of the reflector. Figure 9 shows the left installation, and figure 8 shows the right installation.

⑥

⑦

⑤ ④ ③

② ①

①bolt M6（14 pieces）

②flat washer 6（14 pieces） ③bigger flat washer (14 pieces)

④spring washer 6（14 pieces）

⑤nut M6（14 pieces）

⑥bolt M10（2 sets）

⑦connecting plate (2 pieces)

Figure 5 Installation of Antenna Shield

6

2 Antenna Assembly 2.3 Feeder Installation Insert feeder② from rear of reflector, and then press it tightly with four bolts① and pressing blocks③ evenly, see figure 6. NOTE: The output and shape of the real feeder may be different with that shown in the drawing, according to the difference of antenna types. But feeder installation will not be affected.

①

①bolt M5（4 sets）

②

③

②feeder（1 piece）

③pressing block（4 pieces）

Figure 6 Feeder Installation

7

3 Antenna Installation 3.1 Anti-fall Angle Iron Installation 3.1.1 The diameter of mounting pipe② for antenna installation should be Ф114mm. 3.1.2 Before commencing antenna installation, please fix the anti-fall angle iron③ to the mounting pipe with U-bolt M14① in order to ensure the safety during courses of antenna installation and adjustment, see figure 7.

① ② ③ ④ ⑤ ⑥

①U-bolt M14（1 set）

②mounting pipe（1 piece）

④flat washer 14（2 pieces）

③anti-fall angle iron (1 piece)

⑤spring washer 14（2 pieces）

⑥nut M14（4 pieces）

Figure7 Installation of Anti-fall Angle Iron

8

3 Antenna Installation 3.2 Antenna Hoisting 3.2.1 Two kinds of antenna installation manners are available: left Installation and right Installation. Engineers should select a proper installation manner based on antenna receiving direction, mounting pipe and relevant position of surrounding object.

②

①

③

④

⑤

①hoist ring (1 piece)

②connecting plate (2 pieces)

④azimuth adjusting screw (1 piece)

③U-bolt M12（2 sets）

⑤bolt（2 pieces）

Figure 8 Antenna Right Installation

9

3 Antenna Installation 3.2.2 Please uninstall item③ of figure 8 before installation. Use the hoist ring ① to arise antenna to the proper position, and use the two connecting plates for traction to ensure the antenna safety during the hoist course, preventing knocking of antenna and tower. Fix the antenna to the mounting pipe with item ③, and then fix one end of the azimuth adjusting screw to the anti-fall angle iron with bolts⑤ and another end to the hanging bracket. Indication of figure 8 is right installation. 3.2.3 Left installation, as illustrated in figure 9, is similar with right installation. As left installation is in necessity, please rotate the antenna 180˚

Figure 9 Antenna Left Installation NOTE: The two hoist rings are only used for antenna hoisting, and should be removed after hoisting finished. Please unstop the rubber plugs of leakage holes at the bottom of antenna shield.

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3 Antenna Installation 3.3 Installation of Strengthening Rod 3.3.1 Please install the antenna strengthening rod② in time after completed antenna installation in order to enhance the anti-wind ability. 3.3.2 User needs to assemble the applied parts and standard accessories as shown in figure 10. Please loosen the M10 bolt ① at one end of the strengthening rod, and then move the flat washer, spring washer and nut for use. 3.3.3 Fix one end of the strengthening rod to the hole of the connecting plate, and the other end to the clamp③, and fix the clamp with bolts④to the sustainable member⑤, such as a tower angle iron. So as to ensure the sustaining ability of strengthening rod, please pay attention to the selection of sustaining point: (a) usually strengthening rod and hanging bracket cannot locate at one side of antenna; (b) the height difference of two fixing points for strengthening rod should be as small as possible and the angle between strengthening rod and horizon could not over ±25º. ①

①

②

①

① bolt M10 (1 set)

②strengthening rod（1 piece）

Figure10 Installation of Strengthening Rod

11

3 Antenna Installation 3.3.4 There are two connecting plates at back of the reflector, and user can choose one according to the field situation.

③

⑤ ④ ③clamp（1 piece）

④bolt M10（2 sets） ⑤sustainable member

Figure 11 Installation of Strengthening Rod

12

4 Antenna Polarization Adjustment 4.1 Two kinds of antenna polarization are available: vertical polarization and horizontal polarization. Select one of both polarizations based on circuit design as starting antenna installation. This section introduces how to change antenna polarization. 4.2 Antenna polarization is vertical at leaving factory. Under this circumstance, the red polarized mark② (or polarized mark line) on feeder① is even to the vertical polarization mark “V” on antenna, see figure 12(1). If horizontal polarization is applied, please loosen appropriately the impacted screws④ on pressing blocks③ of feeder, rotate feeder① clockwise or anti-clockwise, and then even out polarized mark② to horizontal polarization mark line ”H”, see figure 12(2).

①

②

③

（1）Vertical Polarization

④

（2）Horizontal Polarization

①feeder (1 piece)

②red polarized mark (1 piece)

③feeder pressing block (4 pieces)

④bolt M4 (4 pieces)

Figure 12 Antenna Polarization Adjustment

13

5 Antenna and ODU Connecting 5.1 Select one polarization based on circuit design while connecting antenna and ODU. The connecting introduced in this section takes vertical polarization as an example. The installation of horizontal polarization is similar. 5.2 As introduced in figure 13, ensure the conformance of antenna polarization and ODU polarization before installation. Attach the ODU to the antenna by hooking the latches on the antenna. NOTE: Please daub Vaseline at the antenna port before ODU installation.

Figure 13 Antenna and ODU Connecting

14

6 Adjustment of Antenna 6.1 Azimuth Adjustment Procedure 6.1.1Coarse azimuth adjustment: Uninstall the azimuth fine adjusting bolt① and the connecting bolt③, and then loosen appropriately nuts⑤ on U-bolt④ of hanging bracket and fixing screws on strengthening rod, see figure 11. Rotate antenna or/ strengthening rod by human forces so that antenna could make azimuth adjustment surrounding mounting pipe. Note: Please don’t rotate too much to keep hanging bracket from falling down from the anti-fall angle iron within azimuth adjusting course. 6.1.2 Coarse determination of azimuth: Coarsely determine the direction of antenna by eyeballing or/ and a compass based on circuit design, and then fix the azimuth fine adjusting bolt① and the connecting bolt③.

⑤

④

①

②

③

①azimuth adjusting bolt（1 piece）

②nut（2 sets）

③bolt M12（1 set）④U-bolt（2 pieces） ⑤nut (4 sets)

Figure 14 Azimuth Adjustment of Antenna 15

6 Adjustment of Antenna 6.1.3 Fine azimuth adjustment: Move the two adjusting nuts ② on fine adjusting bolts forward and backward. If azimuth-adjusting scale is insufficient, customer could continue adjusting by changing position of the anti-fall angle iron on mounting pipe. The range of fine adjustment is ±10°. It is necessary to fix hanging bracket with U-bolt as changing position of the anti-fall clamp on mounting pipe. Please lock tightly all involved loosened parts immediately after completed adjustment.

6.2 Elevation Adjustment Fine elevation adjustment: Loosen the tightening elevation adjusting bolt③ appropriately, and then rotate the two nuts② on item① with involved tools. The range of fine adjustment is ±10°, see figure 15.

③

① ②

①elevation adjusting bolt（1 set） ②nut（2 sets） ③bolt M12 (5 sets)

Figure 15 Elevation Adjustment of Antenna

16

6 Adjustment of Antenna After antenna installation, please confirm that every standard accessory is locked, whose torques can get reference from section 1.3. Make sure that the two drain holes are blocked by two plugs on top of antenna, and the two leaking holes on bottom of antenna are open.

NOTE: We will not inform again if there are some improvements, which do not impact antenna basic structure and performance.

17