www.dthforum.com
Reflector Installation Guideline for Engineers
1
Videocon d2h Broadcasting Parameters
ST - 2 Satellite
www.dthforum.com Our Satellite Satellite Position Sr. No. 1 2 3 4 5 6 7 8 9 10
Transponder Frequency (Mhz) 11483 11483 11546 11546 11609 11609 11672 11672 11164 11164
: SingTel - 2 (ST-2) : 88 Degree East Longitude TP No. 6A 6B 7A 7B 8A 8B 9A 9B 10A 10B
Polarisation Vertical Low Horizontal Low Vertical Low Horizontal Low Vertical Low Horizontal Low Vertical Low Horizontal Low Vertical Low Horizontal Low
2
Reflector Installation Steps
Site Selection Choose Better Mounting Option Align Foot Mount at 90 Degree www.dthforum.com Preparation before drilling Drill Holes & Fix Coach Screws Fix Foot Mount on the Wall Assemble MAST with Foot Mount Align MAST at 90 Degree with respect to Ground Fix Struts with MAST aligning 180 Degree with respect to Ground Fix bolts with MAST Bracket Assemble MAST bracket with Antenna Bracket Assemble Antenna bracket & MAST Bracket with Reflector Insert Weather seal & Assemble LNBF with LNBF Clamp Assemble LNBF Clamp & LNBF with LNBF Arm Assemble LNBF Arm with Antenna Bracket Adjust SKEW ( approx. ) as per Look Angle chart Assemble Reflector Assembly with Mount Assembly Align Elevation & Azimuth angle as per Look Angle chart of respective city
3
Step -1 : Site Selection Survey different locations (like Balcony , Roof etc.) of the building for Reflector Installation with customer consent Align colored part of magnetic needle to the NORTH direction Colour Part of Needle
N
45
315
E
W 135
225 141
S www.dthforum.com Identify Line Of Sight (LOS) direction based on Azimuth Angle of your city (refer below link to know -
http://www.satsig.net/maps/satellite-dish-pointing-india.htm Ensure Compass is held Straight & Still during locating Azimuth Angle No Metallic ( Finger Ring) / Magnetic object should be near compass while locating Azimuth Angle
4
How to Calculate Azimuth, Elevation & Skew Angle Type link http://www.satsig.net/maps/satellite-dish-pointing-india.htm in web address bar, below Screen appear Select Satellite as 88 E ST 1 & Type City name, then Click on Go to know Azimuth, Elevation & skew angle
Azimuth, Elevation & Skew angle of Location for Reflector Installation
www.dthforum.com
Select Satellite from here
Type Name of Installation location here
Click Here to Calculate
5
Step :1 - Site Selection (Continued.. ) Select location for Reflector Installation with clear view of Satellite (Line Of Sight) by using Magnetic compass
There should not be any partial / future obstruction in LOS like- Tree branches, Shed, Growing Tree, Under Construction Building etc. Obstruction in LOS
Clear LOS
Satellite
Satellite
www.dthforum.com
Subscriber
Subscriber
6
Step :1 - Site Selection ( Continued.. ) Also consider below mentioned points during Site Selection :
Reflector Installation Location : Should be minimum 5 Meters away from Bare Electrical Lines (Overhead / Side) Should be easily accessible for Maintenance / Service Should not be accessible by Children / Pet Animals Should be such that Rain / Water Drainage from Roof does not fall directly on the Reflector Should not be in the Passage
Should not be in Damp Area Always Prefer wall Mount option for Reflector Assembly Never Install Reflector Assembly on Water Tank or wall of the Water Tank
7
Step :1 - Site Selection ( Continued.. ) Also consider below mentioned points during Site Selection (continued….) Minimum 15 cm Distance should be maintained between corner edge of the wall & hole to be drilled
Minimum 15 cm
Thickness of the Wall should be more than1.5 times of Rawl Plug Length
www.dthforum.com
In case hole to be drilled is above shoulder height always use Ladder Reflector should never be Installed directly on the “Roof” In case of Floor Mounting Reflector Should be installed on the Flat concrete base of below mentioned Specification 60 cm
Flat Surface 15 cm 60 cm
8
Step :1 - Site Selection ( Continued.. ) Also consider below mentioned points during Site Selection (continued….) Check for conceal electric cables with Line Detector
Check for Water Pipe Line, Gas Pipe line & other cables with Customer consent
Always check for Water line, Gas line or any other cables before drilling in the wall Green LED will glow if Line detector detects Current flow
Minimum 7 cm distance should be maintained between Electric Cable & Hole to be drilled Ensure that Water Line, Gas Pipe, Other Cables / Customer Property is not damage while drilling
9
Step :1 - Site Selection ( Continued.. ) Also consider below mentioned points during Site Selection (continued….) Cable Length should be minimum from Reflector to Satellite Box in order to avoid Signal & Voltage Drop.
www.dthforum.com Reflector
Digital Set Top Box
Cable Length should be minimum
Cable Should be routed with minimum number of drill holes Location selected for Satellite Box should have proper air circulation Select two most suitable locations for Reflector Installation Take Customer permission for Reflector Installation at best suitable location
10
Step : 2 - Choose Better Mounting Option Always prefer Wall Mount as a Mounting option
To be Avoided
To be Preferred
Wall Mount
www.dthforum.com
Floor Mount 11
Step -3 : Align Foot Mount at 90 Degree Align Foot Mount at 90 degree with respect to ground by using Spirit
After Alignment of Foot Mount, Mark 1 hole for drilling
level meter Bubble in Center
Mark Hole for Drilling Foot Mount
Spirit Level Meter
Foot Mount should be installed on Flat (Plane) surface
12
Step -4 : Preparation before Drilling Take Customer permission before drilling
Guide Rod
Self Lockable Chuck
Forward /Reversing
Clean Drill machine & Drill bits Set Drilling mode according to Wall ( Concrete / Brick ) Check Drill bit size according to Rawl Plug diameter Adjust guide rod according to Rawl Plug length (Guide Rod Setting = Rawl Plug Length + 2mm)
( Depth of Hole
Drilling Mode Selection Switch
Speed Variation Switch
= Rawl Plug Length + 2mm)
Drill Machine should be in “OFF” mode while selecting the mode, inserting Drill bit or adjusting Guide Rod.
Speed Control Switch
Always wear Safety goggle while drilling & blowing dust from hole
13
Step -5 : Drill Holes & Fix Coach Screws Hold the drill machine with both hands while drilling Put forward the left leg ( for a Right handed Person ) with the right index finger on Speed Control Switch, Hold the handle with Left Hand – vice versa for Left Handed person Hold the Drill Machine Horizontally & Drill hole perpendicular to the Wall Slowly increase the speed by using the speed control switch
Safety Precautions : Don’t let drill stop while the bit is still inside the hole (If the drill is stuck in the hole, reverse the direction of rotation & slowly pull out the drill bit) Don’t change the rotation direction with the switch while the drill machine is ON Don’t lean on Drill Machine while drilling Use Drill Machine with Safety Precautions to avoid injury
14
Step -5 : Drill Holes & Fix Coach Screws (Cont..) Drill the first hole
Blow the dust from the drilled hole
Push Rawl Plug inside the wall by using Hammer
Dust Blower
Hammer
Do not breathe while blowing dust.
Ensure the Drill Machine is Switched “OFF” immediately after drilling of holes Always use Coach Screw & Rawl Plug recommended by Company
15
Step -5 : Drill Holes & Fix Coach Screws (Cont..) T-Spanner
Fix coach screw with Washer by using T-Spanner
Coach Screw
Mark second Hole after assuring Foot mount at 90 Degree with Spirit Level Meter
Drill Second hole
Washer
16
Step -5 : Fix Foot Mount on the Wall
Tighten Anchor bolt by checking Foot Mount 90o with respect to ground
Dust should be blown from drilled holes before inserting Rawl Plug Always use Proper Size Spanner in order to avoid damage to Coach Screw
17
Step 6: Assemble MAST with Foot Mount B
A
C
Nut & Bolt
www.dthforum.com
18
Step 7: Align MAST at 90 Degree with respect to Ground
Align MAST at 90 Degree in front by using Spirit Level Meter
Mast at 90 Degree in X - Axis
Align MAST at 90 Degree in
side by using Spirit Level Meter
Mast at 90 Degree in Y - Axis
19
Step 8: Assemble Struts with MAST Bubble in Center
Connect this side with Mast (More flat surface)
www.dthforum.com
Assemble Struts with Mast
Align both Struts at 180o with respect to Ground & mark Holes
Drill Holes at marked position, fix Coach Screws & tighten both Struts by using T Spanner Re-check 180o by keeping Spirit Level Meter with respect to Ground Bubble in Center
Check Strength of the Mast & Foot Mount by gentle Shaking Re - Check MAST for 90 Degree from both axis to get Peak signals
20
Step 9: Assemble MAST bracket with LNBF arm Arrow mark shows upward direction
Antenna Bracket
LNBF Arm
21
Step 10: Fix bolts with MAST Bracket Square groove arrangement for locking Bolt head
www.dthforum.com
Nut should be fixed from this side
Keep the bolts slightly loose for Final Azimuth alignment
22
Step 11: Assemble MAST bracket with Antenna Bracket Mast Bracket
Insert the Bolt Head from inside in Square groove
Antenna Bracket Insert Mast Bracket inside Antenna Bracket as shown above
Top View
Back View
www.dthforum.com
Side View
23
Step12 : Insert Weather Seal & Assemble LNBF with LNBF Clamp
Insert Weather Seal
LNBF Clamp with Screws
LNBF + LNBF Clamp
www.dthforum.com
Keep the bolts slightly loose for Final SKEW alignment
24
Step 13: Assemble LNBF Clamp & LNBF with LNBF Arm
LNBF Arm
25
Step 14 : Assemble Antenna bracket assembly with Reflector
Always tighten Bolts diagonally
Nuts & Bolts
Note : Reflector surface should not get deformed or damaged while handling Reflector
26
Step 15: Align Elevation & Azimuth angle as per Look Angle of respective city Elevation
Azimuth
scale for Elevation Angle marking
Magnetic Compass
The vertical movement of Reflector to Track the Satellite is called Elevation adjustment
The Horizontal movement of Reflector to track the Satellite is called Azimuth adjustment
27
Step 16: Adjust SKEW (approx.) as per Look Angle Chart Adjust approximate SKEW as per division marking available on LNBF
5 Degree
Clock wise rotation for negative Polarization angle
For example : If SKEW angel is “- 37.2 degree” 1 Division = 5 Degree Division marking for LNBF rotation = 37.2 / 5 = 7.4 Align “0” mark of LNBF clamp with approx. 7.4 division (Clockwise) on LNBF. Rotate LNBF Clock wise from LNBF connector for negative (-) Polarisation angle. Rotate LNBF Anti Clock wise from LNBF connector for Positive (+) Polarisation angle.
28
Step 17 : Sat Finder Tracking Procedure Slightly Rotate sensitivity knob anti-clock wise. The Indicator needle will move lower ( Left ) side Again align Reflector till indicator needle reaches to maximum signal level ( Right ) side.
Repeat this process till you get maximum signals. Track the Reflector to a maximum signal level & sensitivity knob to anti-clock direction as much as possible.
29
Step 17 : Sat Finder Tracking Procedure (Contd…) After getting maximum signal, tighten Azimuth & Elevation bolts Signal should not decreased during & after tightening
Tightening Azimuth bolts
Tightening Elevation bolts
30
Step 17 : Sat Finder Tracking Procedure (Contd…) Then fine tune the Skew till indicator needle reaches to maximum Signal level Rotate sensitivity knob anti-clock wise till some extent Again adjust Skew till indicator needle reaches to maximum Signal level
Repeat this process till you get maximum signals. Adjust the Skew to a maximum signal level & sensitivity knob to anti-clock direction as much as possible
31
Step 17 : Sat Finder Tracking Procedure (Contd…) After getting maximum signal, tighten LNBF clamp screws
After Peak Tracking Switch OFF the Satellite Box & Remove the Sat Finder Connections
www.dthforum.com
32
Step 18 : Check Signal Quality & Strength in Satellite Management Screen for all TP
Check Signal Quality & Strength bars for Green Colour in all 10 Transponders Ensure must be Green in all Transponder 11483 (V)
11546 (V)
11609 (H)
11609 (V)
11672 (H)
11672 (V)
33
Step 19 : Mark Azimuth, Elevation & Skew Angles
After tightening all Nut, Bolt & screws mark the Azimuth, Elevation & Skew Adjustment with Permanent marker
Azimuth
Elevation
Skew
Always write Customer Flat Number or ID with Permanent Maker on Back Side of
Reflector
Also inform the same to customer.
34
Cable Preparation and Conectorisation
35
Cable Preparation & Connectorisation Cable Parts & Connectors Cable Preparation & Connectorisation Tools Cable Preparation Process Do’s & Don’t of Cable Preparation Cable Preparation Process Continued… Connectorisation Process
36
Cable Parts & Connectors “Connectorisation” is the process of connecting Connector with Cable.
Center conductor
Dielectric
Bonded Aluminum Foil Shield RG 6 Connector (PPC)
Aluminum Braided Shield
Jacket
RG 6 Connector (Gilbert)
RG 6 Cable
37
Cable Preparation & Connectorisation - Tools
Cable Cutter
RG 6 Cable Preparation Tool
RG 6 Compression Tool
38
Cable Preparation Process Step 1 :– Cut the Cable straight ( Perpendicular to the Cable ) by using Cable Cutter
Cable should never be Cut angled, Crushed
Angled
Crushed
39
Cable Preparation Process Step 2 :– After Cutting the Cable, give Circular shape to dielectric using fingers
Do not use Cable Stripper, Pliers or other tools for giving round shape Usage of Cable Stripper / Plier for giving round shape may damage the Cable Parts
Never use Cable Stripper
Never use Plier
40
Cable Preparation Process Step 3 :– Insert cable in Preparation Tool
Cable should always Flush with the stopper
Cable inserted too short, Not touching Stopper
41
Cable Preparation Process Step 4 :– Hold Cable near Preparation Tool.
42
Cable Preparation Process Step 5 :– Rotate tool 3 times in clockwise direction and 3 times in Anti Clockwise direction
3 times Clock-wise rotation
3 times Anti Clock-wise rotation
43
Cable Preparation Process Step 6 :– Hold Cable and Pull out Preparation Tool
After Preparation, Length of the various Parts of Cable should be as mentioned below 1/4”
1/4” 5/16”
44
Do’s & Don’t of Cable Preparation Topic
Do’s
Don’t
Dielectric Length
Always dielectric length should be 1 / 4 inch 1/4”
Dielectric should Never be too long or too short.
Dielectric too long
Dielectric too short Length of Center Conductor
Always Center Conductor’s length should be 5 / 16 inch There should not be any Scratch on Center Conductor
5/16”
Center Conductor should Never be too long or too short. Center Conductor too long Center Conductor too short
45
Do’s & Don’t of Cable Preparation Topic Aluminum Braid’s Length
Do’s Aluminum Braid’s Length should be 1 / 4 inch
Don’t Aluminum Braid’s Length should never be too long or too short.
Braid’s too long 1/4” Braid’s too short Use Preparation Tool
Always use company approved Preparation tool
Never use knife, Cutter, blade or other than company approved tools for cable preparation
46
Cable Preparation Process (Continued…) Step 7 :– Fold back Aluminum Braided Shield 180o on the jacket Precautions : Braid wire should not damage. At least 95% braid should be there. Fold all braid wires on Jacket. No braid should be on foil / Center Conductor.
Unfold the Braids Turn the braids perpendicular to the cable length
Fold back the Aluminum braids 180 degree on the jacket
47
Cable Preparation Process (Continued…) Step 8 :– Clean the Center Conductor with Soft dry Cloth
Aluminum Braid / Foil should never touch center conductor.
48
Connectorisation Process Step 9 :– Insert Cable into RG-6 connector (Gently push the connector) Insert cable into connector
Dielectric should flush with Post of the connector
Dielectric should never be below or above the Connector Post
Dielectric below the Connector Post
Dielectric above the Connector Post
49
Connectorisation Process Step 10 :– Insert RG-6 Connector in to the Compression Tool & compress.
Connector inserted for compression
Compressing the Connector
Connector fully Compressed
50
Connectorisation Process Step 11 :– Take out fully Compressed Connector from compression Tool.
Di Electric flush with Post Aluminum Braid / Foil not touching center conductor.
Straight Center Conductor
Connector Fully Compressed
51
Cable Routing
52
Cable Routing Guidelines Cable Routing Guidelines Weather Seal Application C Bend near LNBF Service Loop near Mast
Application of Cable Tie S Bend Application C Bend on edge of the wall C Bend while laying cable at 900 U Loop & Sealant Application Through Hole for Cable Laying P Clip Application
Cable Routing Precautions ( Do’s & Don’t ) 53
Cable Routing Guidelines Weather Seal Application Ensure / Check for Weather Seal, It should be fixed at LNBF port before connecting the connector to LNBF
Connect the Cable to LNBF Tighten Connector by Hand
Finally Tighten the connector with open ended spanner
Benefits : Weather Seal prevents Water Ingress / Seepage inside the cable Weather Seal prevents Cable Damage, Satellite Box Failure & Connector Corrosion due to Water Ingress/ Seepage
54
Cable Routing Guidelines C Bend near LNBF C Bend should be always made near LNBF
C Bend Tie Wrap
Benefits : By Application of C Bend the “Bend Radius” is maintained, thereby : Prevents Cable Damage near Connector at LNBF end Less Signal Losses ( as the Sharp Bend is avoided )
55
Cable Routing Guidelines Service Loop near Mast Service loop ( Only One Round ) should be tied with Mast
Service Loop
( 8~ 9 inch Diameter )
Benefits : -
( 0.20 ~ 0.22 Meter Diameter )
Service Loop can be used for future service Applications like Re - Connectorisation etc.
56
Cable Routing Guidelines Application of Cable Tie Loose / Hanging Cable should be properly tied with Cable Tie / P Clip
Tail of the Cable Tie should be trimmed properly with maximum tail length of 5mm (after cutting) Always use Company Approved Cable Tie
Benefits : Prevents Cable damage due to rubbing with wall edges / metallic parts Improves Aesthetic Look of the Installation
Precautions : Avoid over tightening of Tie warp as it may damage Cable Jacket which may results in Water Ingress / Seepage Width of Cable Tie should be more than 5mm
57
Cable Routing Guidelines S Bend on edge of the wall S - Bend should be always made, while routing the Cable vertically from one side of wall to other side of the wall
S Bend ( Outer Edge of Wall )
Always use Two P Clips ( Opposite Direction ) while putting any bend / Loop
Benefits : By Application of S - Bend the “Bend Radius” is maintained, thereby : Less Signal Losses ( as the Sharp Bend is avoided ) Prevents Cable Damage due to friction with Wall (Outer Edge Case )
58
Cable Routing Guidelines C Bend on edge of the wall ( Inner & Outer ) C-Bend should be always made while routing the Cable at Inner & Outer Edge of the Wall Cable should be laid through PVC Conduit or use Double sided Tape in case of Outer Edge
C Bend ( Inner Edge of Wall )
C Bend ( Outer Edge of Wall )
PVC Bend ( Outer Edge of Wall )
Benefits : By Application of C Bend / PVC Bend the “Bend Radius” is maintained, thereby : -
Less Signal Losses ( as the Sharp Bend is avoided ) Prevents Cable Damage due to friction with Wall (Outer Edge Case )
59
Cable Routing Guidelines C Bend while laying the cable C - Bend should be always made while routing the Cable on the wall from vertical to horizontal or vice versa
More than 90o C Bend
Benefits : By Application of C - Bend the “Bend Radius” is maintained, thereby : Less Signal Losses ( as the Sharp Bend is avoided )
60
Cable Routing Guidelines U Loop ( Drip Loop ) before cable entry in house Sealant Application U – Loop should be always made before cable entry in the house Sealant should be applied from both sides of the hole with no air Gap Use appropriate bit for Wooden or steel Frame Sealant Application Without any air gap C Bend ( more than 90 degree ) Height Minimum 20cm
U Loop
Benefits : -
Diameter Minimum 12cm
By Application of U – Loop & Sealant the below mentioned can be prevented Water Ingress / Seepage inside the house Satellite Box Failure due to water Ingress / Seepage
61
Cable Routing Guidelines Through Hole for Cable laying It is recommended to drill through hole for Cable entry from Inside to Outside
30 o Angle
Outside
Inside House Wall
Through Hole for Cable entry should have a slope towards outside the House
While drilling through Hole drill machine should not be in hammer Mode There should not be any damage on the inside / outside surface of the wall
62
Cable Routing Guidelines P Clip Application Always use company approved/recommended proper Diameter P-Clips
Nail of the P Clip should be downwards, in case of Horizontal laying of Cable Nail should be downwards
Cabling should be Straight P-Clip should not be equi – distance
Precautions : Cable should not deform / damage while P-clipping with hammer P Clip should neither be loose nor over tightened
63
Cable Routing Precautions ( Do’s & Don’t ) Topic Kinking / Bending of the Cable
Do’s Take care while pulling cable to prevent cable from Kink / cut.
Don’t Never use Kinked / Bend Cable.
Benefit :-
Disadvantage :-
Protect Cable from damage.
Chances of missing few channels
64
Cable Routing Precautions ( Do’s & Don’t ) Topic Cable Routing on horizontal surface
Do’s
Don’t
Always lay the cable on vertical side of the Parapet wall.
Never lay cable on top of the Parapet wall / horizontal surface.
Benefit : Less chances of Cable Damage. Minimize chances of water seepage while water logging (if Cable is damage)
Disadvantage : Higher Chances of Cable Damage. Higher chances of water Ingress / Seepage (if Cable is damage)
65
Cable Routing Precautions ( Do’s & Don’t ) Topic Cable Routing near Electrical Cable
Do’s
Don’t
Always 7cm ( minimum ) distance should be maintained between Electrical Lines & Signal Cable. Always route Cable 5 meters (minimum) away from overhead / side Bare Electrical line.
Never route cable with Electrical Lines. Never route Cable near overhead/ side bare Electrical.
Electrical Lines Minimum 7 cm. Signal Cable
Benefit : Less chances of Signal Interference.
Disadvantage : Picture Freezing may occur due to Interference.
66
Cable Routing Precautions ( Do’s & Don’t ) Topic
Do’s
Don’t
Cable Routing near Satellite Box
Always neatly keep one round ( 8~ 9 inch /0.2 ~ 0.22 Meter Diameter ) of Service Loop near Satellite Box. Tighten the Connector finally with spanner at Satellite Box IF input port.
Never leave loose cable near Satellite Box. Never leave loose connector at Satellite Box end.
Benefit : Less chances of cable damage. Avoid loose connectivity.
Disadvantage : Chances of Cable Damage. Chances of Picture Freezing / No Signal
67
Demonstration of Videocon d2h Services Once Installation completed, Check for : Good Signal in all Transponder (Green Bar for Signal Strength & Signal Quality) Cable is properly connected in Product & product properly connected with Power Socket (no loose connection) Channel & Services opted by Customer activated Once Installation/ Activation completed, Please Call all family members present at home for Demonstration
68
