3.7M Dual Reflector RING-FOCUS ANTENNA SERVICE MANUAL
Contents
1. 2 3 1 Preparation before Installation Procedures 1 Open packing cartons to check the amount of components parts and fasteners 2 Find concerned serial numbers lay the components and parts in order thus to achieve each part matching its installing position The following components and parts need to be assembled according to serial numbers connection between reflector brackets and hub connection between reflectors connection between secondary surface and feed sleeve 3 Classification of Fasteners Screws nuts and washers shall be classified according to their size and specifications to facilitate their applications accordingly 2 3 2 Installation of mount Procedure 1 Installation of upright column Fasteners required Nut M30 flat washer 30 and spring washer 30 7 8 pieces for each type Place the upright column gently onto the foundation with care to avoid damaging to screw threads of anchor bolts When the undersurface of the column fully clings to the foundation operator shall utilize compass to check if the upright column is perpendicular to ground surface After making sure the perpendicularity operator shall fasten all nuts shown in Figure 3 Procedure 2 Installation of rotary pedestal Fasteners required Screw bolt M16 X35 flat washer 16 and spring washer 16 4 pieces for each type Install the rotary pedestal on the flange located under the upright column then mount screw bolt M16 X35 4 pieces At2. 1 5 Installing Tools shall be provided by user Tools for unpacking Wire Cutting Pliers 200mm Crowbar Iron Hammer 3lbs Tools for installation Adjustable Spanner 300mm 150mm 450mm Double Head Spanner 19 17 14 12 10 8 Screwdriver Flathead 200X5 Crosshead 200X5 Tape Measure 5m Rubber Mallet 2 Iron Hammer 3lbs Geologic Compass Trestle Ladder 2m Wire Cutting Pliers 200mm 1 6 Foundation Check 1 1 1 2pieces for each type 2pieces for each type Apieces lpiece for each type 1 1 1 1 1 1 Check the layout of anchor bolts on the foundation the arrow points the approximate direction of satellite Part II Installation of Antenna 2 1 Composition of Antenna shown in Figure 1 1 Main reflecting surface 12 pieces of plates 2 Reflector Radial bracket 12 pieces 3 Secondary reflecting 4 Feed system surface 5 Feed sleeve 6 Antenna mount 2 2 Base The design and construction of the base shall be finished before the installation of antenna 2 3 Installation of Antenna The installing sequence of antenna first installation of pedestal then installation of reflectors finally installation of accessories Note Installation shall be implemented strictly according to the specified sequence Any screw bolt should not be fastened tighten before the sequence requirement allows
3. 3 Upright Column Supporting Frame Pointer for Azimuth Rotary Pedestal Figure 5 Installation of Supporting Frame 11 Procedure 4 Installation of azimuth adjusting device Fasteners required Screw M16 X 20 8 pieces cotter pin 5X50 1 piece Put one end of azimuth device into the position between the double lug located above the upright column mount two short flange axes then fasten the screws Rotate the supporting frame insert the lug of lead screw for azimuth into the position between the double lugs of supporting frame mount the pin 2 and then mount the cotter pin shown in Figure 6 Upright Column o Figure 6 Installation of Device of Azimuth Procedure 5 Installation of adjusting device of elevation Purchasing parts required Cotter pin 5 50 1 piece Insert one end of lead screw for elevation into the position between two plates located at the lower part of supporting frame mount the locking shaft 2 and then mount the cotter pin Screw out the other end of lead 12 screw for elevation until its erected height is approximately equal to the height of double lugs on the supporting frame then place the lead screw for elevation into proper position thus to make preparation for next procedure the installation of hub shown in Figure 7 Lead Screw for Elevation Supporting Frame Figure 7 Installation of Device of Elevation 2 3 3 Installa
4. even cut off the communication which shall be attached most importance to 4 5 The antenna works in open air so the operation of antirust shall be implemented at any moment The shed surface paint shall be repaired in time the moving components and parts shall be cleaned and lubricated with grease regularly The fastener shall be checked termly for avoiding loosening especially after strong gale all loosened fasteners shall be fastened in time 4 6 Any person not concerned with operation is prohibited to stay in the operating site of antenna 4 7 The snow on the antenna shall be removed in time 4 8 After two years of application the antenna shall be re sprayed with white paint of alkyd enamel 4 9 The device of lightning protection shall be installed 24 Part V Troubleshooting If the signal received or transmitted by antenna is weakened operator can check following parts and implement the repair 5 1 Check if the alignment to satellite is accurate and then implement fine adjustment to azimuth or elevation 5 2 Check if the diaphragm on horn of feed is broken the damaged diaphragm shall be replaced immediately 25
5. first please do not fasten these bolts they shall be fastened only after the next procedure is fulfilled in which the supporting frame can rotate agilely shown in Figure 4 In some circumstances the rotary pedestal of antenna has been assembled before delivery for which the operator can implement following procedures Procedure 3 Installation of supporting frame Purchasing parts required Cotter pin 5X50 1 piece Lubricate the ball socket of rotary pedestal mount the lower button head of supporting frame into the ball socket of rotary pedestal then insert the single lug into the position between the double lug located above the upright column then according to the size of clearance between lugs insert washers of 5mm and 0 5mm into the clearance after minimizing the clearance in position A insert the pin 1 through it and then mount the cotter pin Rotate the supporting frame around the rotary pedestal if the rotation of supporting frame is found with occurrence of detention the operator can knock the rotary pedestal for making the supporting frame rotates agilely then fasten all screw bolts M16 X35 on the rotary pedestal shown in Figure 5 Direction of Satellite Upright Column Foundation Figure 3 Installation of Upright Column 10 Upright Column Rotary Pedestal Figure 4 Installation of Rotary Pedestal Washer 1mm 5mm 4 0 7 E 314 AL 5
6. of Antenna _ cos xcos R R H E arctg Y 1 cos 8xcos s p Azimuth Angle of Antenna t A 180 arcty 1800 sin Polarization Angle of Antenna rte 90 arctg 8 sin When 6 gt 0 P will be When lt 0 P will be 1 In these formulas R radius of earth 6370Km H height of satellite 35786Km geographical longitude of satellite station east longitude 0 geographical latitude of satellite station north latitude longitude of subsatellite point of aligned satellite east longitude 23 Part IV Maintenance and Service of the Antenna 4 1 The matching parts for rotation and fastener shall be checked for rusting If the rust spot is found the part shall be cleaned on time and lubricated with grease The driving lead screw can be installed only after the matching surface between supporting bar and upright column is lubricated with grease 4 2 When it requires operator should mount onto the main reflecting surface of antenna only 1 to 2 persons in lighter weight can be allowed to mount onto it and the operator shall wear soft sole shoes for avoiding deformation and damage of reflecting surface 4 3 Once the diaphragm on horn of feed is found with broken the diaphragm shall be replaced immediately 4 4 Any water is prohibited to be entered into the feed system Water influent will influence the performance of antenna seriously
7. 3 M Dual Reflector RING FOCUS ANTENNA SERVICE MANUAL Part T Introd ctiom cec eue eate D na erbe a eot tcd d me ds 2 eee debite ee ALE RR c daa Mol eed AT 2 1 2 Main Technical Parameters se eere term ee etre Des rt ryan 3 1 3 Unpacking CHECK isset Portu um aote RE 6 1 4 Damage during Transportation 6 1 5 Installing Tools shall be provided by user 7 L6 Foundation iet ede E qo a TU Me 7 Part II Installation of Ante nfia uero ette ett e e den 7 2 1 Composition of Antenna shown in Figure 1 7 PACA ASC M C T ee dies 8 2 3 Installation of Antennna cccccccccccccessssssseecececececsesessnsaeeeceeeeeees 8 Part III Operation of Antenna s Alignment to Satellite 23 3 1 Azimuth Adjustment of Antenna shown in Figure 5 23 3 2 Elevation Adjustment of Antenna shown in Figure 6 23 3 3 Determination on Azimuth Angle Elevation Angle and Polarization seat ttt pos bled ade 23 Part IV Maintenance and Service to 24 Part V Troubleshooting irrien er ore eO Rr 25 Part I Introduction 1 1 Summary This manual specifies the assembly and installation of the dual reflector ring focus 3 7 meter antenna system This 3 7 meter ring focus antenna is a n
8. 52 4 2 5 85 6 425 12 25 12 75 14 14 5 GHz 3 4 4 2 5 925 6 725 10 95 12 75 13 75 14 5 Gain dBi 42 45 2 50 9 52 5 Voltage Standing Wave Ratio 1 25 1 1 25 1 1 25 1 1 25 1 Beamwidth 3dB 1 32 0 86 0 47 0 38 15dB 2 75 1 73 0 91 0 75 Nowe 2 Port Feed 2 Port Feed Temperature 10 E1 36 K 50 K 20 E1 30 K 44 K 40 E1 25 K 38 K Power Capacity SKW port 1KW port Interface CRP 229G CPR 159G 137G WR 75 0 154 0 2dB 0 25dB 0 25dB Feed Isolation Tx Rx 85dB Cross Pol 35dB 35dB Isolation on Axis 35dB 35dB Axial Ratio circular 1 09 1 09 1 06 IntelSat CCIR 580 CCIR 580 CCIR 580 CCIR 580 Envelope feed provided as per customer request 1 2 2 Mechanical Specification Mechanical Specification Diameter of Main Reflecting Surface Diameter of Secondary Reflecting Surface Travel of Azimuth Travel of Elevation Surface Accuracy Re Installation Accuracy Parameter D 3 7m d 0 444m 60 5 90 0 5mm r m s 0 6mm r m s Dead Weight of Antenna 600Kg Spray Paint White 1 2 3 Environmental Specification Environmental Specification Parameter Operational Wind Speed 72Km h 97Km h Survival Wind Speed 200K h Humidity 10 98 Temperature 45 C 60 C Anti Seismic Capacity Horizontal 0 3G s Vertical 0 15G s 7 M30 X 500 Direction of Satellite 53041 5 Foundation Technical Requirements 1 The level o
9. eft side of side plate on central unit Align the upper hole on reflector bracket with the pin on the side plate of central unit on the central unit position marked with X is pin position marked with is hole and mount the leg Then insert bolts into the other three holes mount nuts flat washers and spring washers respectively then fasten them shown in Figure 9 14 Procedure 3 Installation of reflectors Fasteners required Screw M5 X 12 24 pieces screw bolt M8 X30 with pin 24 pieces screw bolt M8 X 30 24 pieces nut M8 48 pieces flat washer 8 48 pieces Check and make sure that the marks on narrow edge of reflector are corresponding with the marks on central unit and then stand by for installation Turn the narrow edge of reflector toward the central unit then from outside to the direction of central unit insert the plate to the position of flange on the central unit From above to below fall the surface plate into the position between the reinforced beam for upper surface plate of central unit and the left side of reflector bracket then fasten the two screws M5 X 12 located at the joint between narrow edge of reflector with the flange on the central unit Adopting the same method mount abutting reflector and fasten the two screws 5 12 Note the reinforced beam of surface plate shall be installed onto the right side of plate of supporting leg Mount two screw bolts M8 X 30 with pin onto two pieces of
10. ew type small aperture antenna for communication station under optimum design It is applicable to be the antenna of remote station for not only satellite communication but also VSAT networks This antenna is available for both C band and Ku band furthermore it can be put into use within various domains like scatter communication reception of satellite TV microwave relay communication and so on 3 7 meter ring focus antenna adopts new technologies of ring focus design method and of corrugated feed horn After being implemented with optimum design its electrical performances reach the advanced level and overcome the weakness of some traditional design vsat size antenna performance Features of the antenna The main reflecting surface of antenna is composed by twelve pieces of high precision flabellate surface plates stretched into form with aluminum alloy after quenching The secondary reflecting surface is fabricated with precision work Its pedestal is designed into stable and reliable structure of upright column The antenna system has many unique features such as novel design high accuracy excellent appearance easy installation simple operation high mechanical strength strong wind resistance and high accuracy on re installation 1 2 Main Technical Parameters 1 2 1 Electrical Specification Electrical sje ye C Receive C Transmit Ku Receive Ku Transmit Specification Frequency 3 6
11. f foundation shall be higher than the ground surface by 200 300mm The position of anchor bolts shall be arranged for connecting with the reinforcing steel bar in concrete base strictly according to the requirement of the drawing The foundation shall be formed by processing of casting at one iteration The anchor bolts shall be kept parallel strictly with each other and all of them shall be perpendicular with the ground surface The upper plane of the base shall be flat and level 2 The dead weight of antenna is 600Kg its maximal overturning moment is 5500Kg m under wind speed of 55m s 3 Based on specific status of different installing sites the foundation shall be designed according to the conditions offered by this figure Primary Reflector Figure 1 Schematic Figure of Composition of Antenna 1 3 Unpacking Check Open packing cartons to check all components and parts according to packing list the components and parts can be assembled and installed only after being made sure that they are complete and undamaged During installation the operator shall handle components and parts with care thus avoid damage to main working surface or lacquer The installing site shall be kept neat and clean loss of components or parts shall be avoided 1 4 Damage during Transportation Any damage caused during transportation shall be reported to the forwarder of transportation who will be responsible to your claim on damages of goods
12. length of feed shall be longer than the height of feed sleeve Install mounted feed into the sleeve of feed then fasten screw bolts M6 X20 Install the clunk at the bottom of feed sleeve then fasten 4 screw bolts M8 X 10 shown in Figure 10 Take mounted feed and the sleeve of feed into the reflecting surface of 16 antenna mount them onto the hub with care for avoiding damage to the phase shifter exposing outside the sleeve of feed then fasten screw bolts M8 X 16 shown in Figure 11 Inside the central unit mount the duplexer from the direction of bottom according to indication of figure duplexer and screws are all packed in the box of feed shown in Figure 12 Horn Wave Guide Feed Sleeve phase shifter um Z 8 Surface Plate Figure 10 Installation of Feed 17 Flange Duplex Transmit port Receive port Figure 11 Installation of Feed Sleeve Figure 12 Installation of Duplexer Recieve Port Phase Transfer Feed Horn Fig 13 Feed source system installation 18 Insulated Patch Fig 14 Feed source system installation Device of Polarization Rotation Polarization adjusting mode is manual The polarization adjusting device consists of rotating flange upper and lower level of rolling track which is shown in Fig 19 Wave guide slot Bolt Turn flange Transmi
13. reflectors and supporting leg at the position mount two screw bolts M8 X 30 then mount nuts flat washers and spring washers respectively but these parts shall not be fastened for the moment Adopting same method mount all surface plates During installation all parts shall be handled with care When fastening the screw M5 X 12 the operator works inside the central unit which requires the operator shall wear soft sole shoes After all reflectors are mounted fasten all fasteners in the order from inner cycle to outer cycle shown in Figure 9 Surface Plate Central Unit MIA Figure 9 Installation of Supporting Legs and reflectors Supporting Leg 2 3 4 Installation of Feed and Sleeve of Feed Fasteners required Screw bolt M8 X 10 4 pieces screw bolt M8 X 16 8 pieces screw bolt M6X20 8 pieces screw bolt 4 25 48 pieces supplied within the box of feed flat washer 8 12 pieces Check to make sure there is no dirt and paint found at the rabbet between hole of central unit and sleeve of feed or at the rabbet between upper hole of feed sleeve and horn Clean these parts and lubricate their matching surfaces with grease At first on the ground surface of operating site mount the feed consists of horn wave guide and phase shifter which shall be mounted with rubber ring into proper status then fasten screws feed and screws are all packed in the box of feed After connecting the overall
14. t 7 Recieve Fig 15 Device of Polarization Rotation Drawing of phase shifter and duplexer contact For circular system View from rectangle waveguide to feed Receive R Circular Polarization Transmit L Circular Polarization 20 CPR 2296 Screw contact palne CPR 159G 137G phase shifting interface make of pin bolt or medium piece or staircase structure Receive a ari ifn in dd R Circular Polarization Fig 17 Photos of medium phase shifter and OMT contact Receive R Circular Polarization Transmit L Circular Polarization Fig 18 Photos of wave guide phase shifter and OMT contact 2 3 5 Installation of Secondary Reflector The subreflector is modulized into the feed and pre installed in the factory 22 Part Operation of Antenna s Alignment to Satellite 3 1 Azimuth Adjustment of Antenna shown in Figure 5 The azimuth adjustment shall be implemented by turning the hand wheel on the axis of azimuth The operation shall be implemented slowly 3 2 Elevation Adjustment of Antenna shown in Figure 6 The elevation adjustment shall be implemented by turning the handle on the axis of elevation Note when the antenna is turned to the position nearly skywards the turning of handle shall be operated slowly operator must pay attention to avoid turning the lead screw for elevation out 3 3 Determination on Azimuth Angle Elevation Angle and Polarization Angle Elevation Angle
15. tion of Reflector of Antenna Procedure 1 Installation of central unit Hub Fasteners required Screw bolt M1660 nut M16 flat washer 16 spring washer 16 12 pieces for each type Cotter Pin 5 X 50 3 pieces At first clean the screw holes and pin holes of three lugs then lubricate them with grease Mount these lugs onto the lead screw for elevation of supporting frame mount the pin 2 then mount the cotter pin The operator s lift the central unit horizontally and then place it above the pedestal After aligning the upper hole of central unit with the upper hole of lug on supporting frame insert 8 pieces of screw bolts mount nuts flat washers and spring washers respectively and then fasten them Lift the lead screw for elevation align the four holes of lugs on its upper part with the four holes of central unit Insert 4 pieces of screw bolts 13 mount nuts flat washers and spring washers respectively then fasten them shown in Figure 8 Central Unit Procedure 2 Pointer for Elevation Procedure 1 0 Lead Screw upporting Frame for Elevatio Figure 8 Installation of Central Unit Procedure 2 Installation of reflector bracket Radial Fasteners required Screw bolt M167X 40 nut MIO flat washer 10 spring washer 10 36 pieces for each type Check the mark on reflector bracket such as 5 1 5 2 5 12 Corresponding with the marks on central unit legs shall be mounted onto l
Download Pdf Manuals
Related Search