QDV120 Operation and Pointing manual

Transcription

1 QDV120 Operation and Pointing manual MPAD1 Plus OP E1 page 1

2 Contents Item Description Page 1.0 Health and Safety for Operators and Installation Staff Transit case Reflector/Mount/BUC/LNB QDV120 IP Terminal Unpacking instructions Antenna Assembly 6 Step 1 - Remove Case lid Step 2 - Remove case contents and layout in order Step 3 - Kingpost/AZ-EL Head to Leg Assembly Step 4 - Adjustable Stay Assembly Step 5 - Reflector Assembly Step 6 - Wind load Stay Assembly Step 7 - Feed Arm Assembly APPENDIX A Pointing with MPAD1 PLUS and ODU Modem Power ON the Modem (the modem will take 1-2 minutes for Boot up) 2. Polarization of Feed 3. Elevation - Initial Setting 4. Azimuth - Initial Setting 5. Azimuth Fine Adjustment 6. Antenna Pointing Procedure (peaking) 7. Setting the satellite orbital slot 8. Dip Switch Selection Chart 1 Polarization Chart Chart 2 Elevation Chart Chart 3 - Azimuth APPENDIX B Pointing with Birddog and IDU 26 APPENDIX C Spares and Accessories 28 OP E1 page 2

3 1.0 Health and Safety for Operators and Installation Staff Prior to installation, verify that the installation site and supporting structure have been investigated and found capable of withstanding all loads imposed by the proposed antenna system, equipment and personnel. It is highly recommended that a RISK ASSESMENT is carried out prior to the deployment to ensure the safe working area for everyone and the risks have been reduced. Working at Height a brief guide Risk Assessment a brief guide The TP100 has been designed as a no-tool assembly, this results in moving parts that could cause a finger trap. These are pointed out through-out this manual. Do not stand in front of the antenna whilst the system is operating. Do not look into the feed system whilst the system is operating. Due to the single case design the transit case is a 4-man lift OP E1 page 3

4 2.0 Transit case Reflector/Mount/BUC/LNB The QDV120 is has been designed so that all the outside elements of the IP terminal are transported in one robust case. Size: H1470 X W1300 X D450 Weight: 96kg Recessed locking over centre catches Locking/Rotating castors 4 Carrying Handles Internal foam for transport protection Note : Due to the single case design the case is a 4-man lift OP E1 page 4

5 3.0 QDV120 IP Terminal Unpacking instructions Case Contents 1 X 1.2M Reflector 1 X AZ/EL no-tools head 1 X King post 3 X Tripod legs and sand feet 3 X Tensioning stays 2 X Front feed arm supports 2 X Rear antenna supports 1 X Feed arm with BUC/LNB/Cables 1 X Accessories pack 1 X ODU Modem 1 X MPAD1 Plus (and cables) OP E1 page 5

6 4.0 Antenna Assembly Step 1 Remove Case lid Unlock over-centre catch Use lifting handle Remove case lid Step 2 Remove case contents and layout in order OP E1 page 6

7 Step 3 Kingpost/AZ-EL Head to Leg Assembly AZ/EL Head / Kingpost The AZ-EL head and the King post will be pre-assembled and requires no tools to assemble or operate. Terrain compensating Inclinometer Reflector interface points Elevation Fine adjust Azimuth Fine adjust Azimuth Course adjust Adjustable stay clamping points King post leg locations Leg Assemblies (X3) The leg assemblies are supplied complete and need no tools for assembly Adjustable stay locations Sand feet Sand feet securing pin Tripod leg Leg Pins (X3 Note: to secure the legs to the kingpost you will need the Leg Pins from the Accessories Pack OP E1 page 7

8 Leg Assembly to Kingpost Insert the tripod leg (and sand foot assembly) onto the centre location of the Kingpost and fasten with the Leg Pin. Repeat this for all three legs. Step 4 Adjustable Stay Assembly Adjustable Stay Pins (X6) Note: to secure the legs to the kingpost you will need the Adjustable Stay Pins from the Accessories Pack Adjustable Stay s (X3) OP E1 page 8

9 The stays have opposite cut threads on each eyed end, this will allow the stay to extend in length by simply rotating the centre rod Open the adjustable stay pin clip and push the pin through the hole in the tripod leg, captivating the stay. Then secure the pin with the spring clip. Repeat for all three legs. Repeat this process for the retainer lugs on the kingpost (X3) You are now ready to tension the tripod Rotate the main connecting rod until pressure is applied to the leg and the kingpost. Repeat three times Warning: DO NOT OVER TIGHTEN OP E1 page 9

10 Step 5 Reflector Assembly Place the top reflector securing studs (with thumb nuts attached) into the top EL Plate slots Top studs to top slots With the top studs engaged, locate the bottom studs into the elevation plate bottom captive holes and secure with thumb nuts (In Accessories Pack) Bottom stud into holes OP E1 page 10

11 Thumb Nuts(M8) Secure reflector Tighten evenly (no movement) Step 6 Wind load Stay Assembly The QDV120 has four wind stays per system, two short stays for the rear and two longer stays for the front feed arm Studs to push through reflector Rear Front OP E1 page 11

12 Place rear wind loading stay inside rear of the reflector. Push the stud through the reflector This will be used to fasten the front feed arm stay Using the thumb nuts from the accessory pack secure the rear stay onto the elevation plate (X2) Tighten the thumb screws Using the rear wind stay stud, locate the front feed arm stay onto the reflector. Using the thumb nut from the accessory pack loosely tighten NOTE: the front feed arm stay must be allowed to move OP E1 page 12

13 Repeat the process both sides of the antenna The reflector is now ready to accept the feed arm assembly Assembly Tip: Step 7 Feed Arm Assembly Make sure you attached the feed to the feed arm stays before you fix the feed arm to the base of the antenna Using the Thumb stubs (in Accessory Pack) loosely secure the feed arm stays to the feed carriage Repeat both sides of the feed carriage Offer the feed arm up to the underside of the reflector Secure in place with thumb stud Tighten all Thumb nuts so that there is no movement of the components. OP E1 page 13

14 The antenna is now ready for pointing OP E1 page 14

15 Appendix A Pointing with MPAD1 PLUS and ODU Modem Alignment with the satellite is obtained by setting polarization, elevation, and azimuth angles which will be automatically displayed on the M-PAD1 Plus hand held unit. As a precaution/ backup, charts are provided in this manual to determine the values for your earth station antenna site. ΔL is the difference between the earth station antenna site longitude and the satellite longitude. Use ΔL and your earth station latitude to obtain polarization, elevation or azimuth setting 1. Power ON the Modem (the modem will take 1-2 minutes for Boot up) Power ON/OFF Button Modem Booting Please Wait will appear on the M-PAD1 Plus whilst the modem is booting OP E1 page 15

16 Once the Modem has booted and the GPS has locked the M-PAD1 Plus will display a T-AZ & T-EL (the T standing for target angle). The target AZ & EL will be the position of the satellite from your location. The Polarisation will be displayed as Receive POL (i.e. this is the polarisation of the receive carrier coming from the satellite) 2. Polarization of Feed NOTE: you must know the Polarization you are receiving (Horizontal or Vertical, this will be given to you by your satellite operator) Loosen feed Horn clamp bolts and turn feed clockwise or counter-clockwise, depending on the value calculated by the M-PAD 1 Plus hand held device. Alternatively set the POL angle, east or west of the satellite as shown on Chart 1. OP E1 page 16

17 3. Elevation - Initial Setting The QDV120 is fitted with a pre-calibrated oil filled terrain compensation inclinometer (which is mounted on the Elevation Head. The inclinometer has been set to compensate for the offset of the reflector. The M-PAD 1 Plus will display the calculated elevation angle Course Adjust Fine Adjust Step 1. Release the top locking nut (could be brass or hand nut depending on model) Step 2. Rotate the locking nut to give rough travel required to move the reflector to desired elevation NOTE: You can manually move the reflector Step 4. Use the lower hand nut for fine adjustment Step 5. Secure the top locking nut NOTE: for peaking you will need to release the locking nut OP E1 page 17

18 4. Azimuth - Initial Setting The M-PAD 1 Plus will display the calculated Azimuth angle Azimuth refers to the rotation of the whole antenna around a vertical axis. It is the side to side angle. The QDV120 azimuth mechanism will allow you to loosen the main mount bracket and swing the whole dish all the way around in a 360 deg circle. By definition North is 0 deg, East is 90 deg, South is 180 deg and West is 270 deg. North can also be called 360 deg. Course Adjust Step 1. Release the locking levers (X2) one on each side Step 2. Release the four azimuth clamps on the bottom of the AZ/EL head. NOTE: these could be over centre clamps or hand nuts depending on model number Step 3. Set the look angle as denoted on the M- PAD 1 Plus by moving the reflector with your hand (using a compass) Step 3. lock off the reflector with lock levers (X2) NOTE: leave the X4 bottom clamps loose until final pointing OP E1 page 18

19 5. Azimuth Fine Adjustment Note: that you find a satellite by pre-setting the elevation accurately and then swinging the whole antenna boldly in azimuth till the signal locks up - so an approximate azimuth angle is normally sufficient. Inclinometer Elevation fine adjust nut Elevation locking nut Azimuth fine adjust nut Once the antenna is peaked then secure the X4 Azimuth clamps on the bottom of the AZ/EL head OP E1 page 19

20 6. Antenna Pointing Procedure (peaking) Start with the azimuth direction and swinging the dish either side of the satellite till you lose the signal. You need to identify two points on either side where the signals are down by exactly the same amount (on your meter) and then put the dish in the exact centre. NOTE: on the M-PAD1 Plus the lower signal strength bar is the MAX signal strength that has been achieved, it will hold for a few seconds. This can be achieved by using the fine adjust lead screw on the AZ EL head (see section 5) After setting the azimuth with the fine adjust, tighten the X4 locking clamps on the bottom of the AZ/EL head. This locks the azimuth setting but will often simultaneously increase the elevation angle, so you may temporarily lose the signal. Elevation adjustment is best done with the bottom hand nut nut while allowing the weight to keep tight contact (no backlash). Count the turns while moving from one low measurement to the same low measurement. Then turn the nut accurately back to the middle position. Do it accurately to 1/6th of a turn by counting the knurls on the hand nut. Polarisation adjustment normally needs assistance from the network hub. The hub can switch your transmitter on and make it transmit a continuous wave (CW) un-modulated clean carrier on a frequency where it is unlikely to cause interference to other satellite services. Your antenna is ready to transmit. OP E1 page 20

21 7. Setting the satellite orbital slot The orbital slot can be set from -180 to +180 (- is locations West of South, + is for locations east of south) Remove the rear cover of the M-PAD1 Plus to expose the internal PCB. To adjust the orbital slot press the + and - input keys (reading on the front screen will change) once the desired orbital slot has been selected press the SAVE key 8. Dip Switch Selection The MPAD has a logic circuit to allow you to select linear or circular POL. Down UP EL X Elevation off set EL X Normal screen POL X Linear (Ku-Band) POL X Circular (no polarisation displayed on front LCD) 10 X Sets POL Mode to C0- POL (Vertical Rx pol = OP E1 page 21

22 0) 10 X Sets POL Mode to Cross- POL (Horizontal Rx pol = 0) A6 Not Used Polarisation mode selection Pin Mode : POL Down Linear UP Circular In the up position the MPAD2 will be set to circular polarisation, no POL skew angles displayed In the down position the MPAD2 will be set to linear polarisation, the POL angle for the desired satellite will be displayed on the front LCD for both Horizontal and vertical RX. Cross Polarisation mode selection Pin Mode : 10 Down Cross POL Vertical Rx =0 UP Co-POL Horizontal Rx =0 Pin mode 10 switches between H pol at 0 deg & V pol at 0 deg. Switch up is H at 0 which will relate to Co-pol on the 5W TRIA fitted and with the switch down it is V at 0 which will be Cross-pol for TRIA & normal operation for most beams. OP E1 page 22

23 Chart 1 Polarization Chart OP E1 page 23

24 Chart 2 Elevation Chart OP E1 page 24

25 Chart 3 - Azimuth OP E1 page 25

26 Appendix B Birddog Pointing (Quick Start) OP E1 page 26

27 OP E1 page 27

28 Appendix C - Spares and Accessories Accessories Pack (Complete) Individual Part No. 3 X Leg Clips HOL X Adjustable Stay Clips HOL X Rear Stay Thumb Nuts HOL X Front to Rear Thumb Nuts HOL X Feed Support Stay Thumb Studs HOL X Antenna Securing Nuts HOL X Feed Arm to Reflector Thumb Stud HOL X Carry bag HOL0982 Tensioning stays (set) 3 X Tensioning stays HOL0983 Antenna stays (set) 2 X Rear stay HOL X Front stay HOL0985 Tripod leg (set) with sand foot 3 X Leg (with sand foot) HOL0986 MPAD1-PLUS Hand Held controller GPS Module Cables set HOL0987 HOL0988 HOL0989 OP E1 page 28