Post on 30-Oct-2014
By:- Satyjit Mastana Date: 19\09\12
Installation of Antenna & Antenna LineDiagram:
1. Shelter.2. BTS.3. Indoor jumper cable to BTS connection.4. Jumper cable.5. Surge arrestor.6. RF cable.7. Roxtec.8. IGB & EGB.9. Pendulams.10. Earthing kit.11. RF clamps.12. Horizontal cable tray(HCT).13. Dummy RF clamp.14. Vertical cable tray(VCT).15. C clamp.16. RF cable to outdoor jumper cable connection.17. Lightning arrestor.18. Aviation lamp.19. Gsm antenna.20. Outdoor jumper cable.21. Grounding cable.22. Earthing pit.23. Earthing pit.24. Tower body.
NOTE:- For antenna line we have to install 3,4,5,6,7,10,11,13,15,16,19,20.
RF Plan:- Site
S. No.
Particular S1 S2 S3
1. Height of antenna 30 31 292. Azimuth 30° 110° 250°3. Mehanical tilt 2° 0° 0°4. Electrical tilt 0° 2° 2°5. Antenna model zx320 zx321 zx320
Antenna Instollation:-
1. Material required :-
S.NO. PARTICULERS SPECIFICATION QUANTITY REMARK
1- Antenna GSM 900 band cross polarized Katherine antenna
3 -
2- Mech-tilt - 3 -
3- Separator - 3 -
4- Antenna -clamp Size 3” 3 sets -
5- Jumper cable 3m length 3 -
2. Tools required:-
S.NO. PARTICULERS SPECIFICATION QUANTITY REMARKS
1- D-type spanner (12-13)no 2 -
D-type (30-32)no 2 -
2- Tilt-meter - 1 -
3- Mirror campus - 1 -
4- Majoring tape 50m length 1 -
5- Rope 75m 1 -
Rope 3m 1 -
6- Pulley - 2 -
7- ESD band - 5 -
8- Helmet Yellow color 5 -
9- Safety belt - 2 -
10- Knife - 1 -
3. Procedure of Antenna Instalation :-
• First we unpack the antenna using ballpin hammer, flat head screw driver and combinational pliers. we can use thse tools for unpacking the wooding packing.
• After that we use knife for unpacking the cotton packing of antenna.
• Sector sillection process is done by using the mirror compass before the antenna on tower.
• In sector 1 mechanical tilt is required so these sector's mechanical tilt arrengement is done at the top of the antenna.
• Sector 2 and sector 3 dose not required any mechanical tilt arrengement is done at the bottom the antenna.
• After these when assembling process of the antenna is done. using 30-32 spanner then the jumper connector should be connected at the bottom of the site.
• Weather process of the jumper connector is also done at the bottem of the site.
• After the process we can give the hot air blow at the jumper connector weather proof portion for proper weatherproofing process.
• After that we can roll the jumper cableand tied with antenna.
• After that process two person is climbe up the towerwith pully and rope. and hang the pully on the tower and also fix it with the help of the another short length rope.
• Pully is hanged atleast 2.5 meter above the antenna height on tower.
• Then afterone side of the rope is fixed at the one side of the antenna and another end of the rope is connected at the bottom of the antenna is used for back support.
• After hanging the antenna we can fix it at the pole mount temporarily using the 16-17 spanner.
• Then we hang another two antenna at another two different sectorsand fix it temporarily for the mechanical tilt arrengement.
• Mechanical tilt arrengement process is done by using the tilt meter.
• One personn can stand at the bottom of the tower and another one can stand at the top of the tower then fix the antenna the azimuth angle using the mirror compass.
• Then pemanently fix the antenna at the pole mount.
4. Quality Cheak Points:-
S.NO. PARTICULERS STATUS REMARK
1- Height of antenna should be as per RF plan
Not’ ok -Height of tower is not ok
-pole mount is not fixed properly.
2- Mech-tilt should be as per RF plan ok -
3- Elect-tilt should be as per RF plan Not ‘ok -not fix definite angle of elect-tilt
4- Azimuth should be as per RF plan ok -
5- Type of antenna should be as per RF plan
ok -
6- Antenna clamp should be as per RF plan
ok -
7- Antenna separate should be as per RF plan
ok -
8- Labeling back side antenna ok -
Antenna Line Instollation :-
1.Material required:-
S.NO. PARTICULERS SPECIFICATION
QUANTITY REMARKS
1- RF cable 7/8” 180m -
2- Jumper cable ½” -1.5m six cable
-3m six cable
-
3- RF connector 7/8” 12 -
4- Earthing kit - 12 -
5- RF clamp Six way clamp 28 -
6- C-clamp - 3 -
7- Roxtec - 1 -
8- Surge arrestor - 6 -
9- Grounding cable 16 sq mm 18m -
10- IGB 300*100*6 1 -
11- EGB 300*100*6 1 -
2. Tools required:-
S.NO. PARTICULERS SPECIFICATION QUANTITY REMARKS
1- D-type spanner (8-9)no 1 -
(12-13)no 2 -
(30-32)no 4 -
2- Ring type spanner (12-13)no 2 -
3- Screwdriver Flat head heavy duty, small duty
1 -
4- Cutter Tie cutter
RF cable cutter
2
1
-
-
5- Crimping tool - 1 -
6- Majoring tape 50m 1 -
7- Rope 75m 1 -
3m 1 -
8- Pulley - 1 -
9- ESD band - 5 -
10- Knife - 2 -
11- Safety belt - 2 -
12- Flat file - 1 -
13- Helmet Yellow colors 5 -
14- Pliers Combination pliers 1 -
3.Procedure
• First we measure the legth of the RF cable is required for each sector.
• After measuring the total length of the RF cablead put the temporary insullationon tape of the both side of the RF cables.
• One RF connector made at the one side of the RF cable and when we make the RF connector then we also temporarily insulate the RF connector.
• Before laying the RF cable first mark the RF cable using the coloured tape, for each sector we using Tx and Rx ue use different coloure tape.
• After this processes one person have to climbe up at the tower to hang the pully on the tower pully on the tower.
• Pully alaways hanged 2 to 2.5 meter above the installed antenna
• Then after one side of the antenna is tightened with the first RF clamp.
• Then we hang another two cables for 2nd sector and 3rd sector as the same process as 1st sector.
• When we lift the cables then one person should be unroll it with a syncronise form.
• We have to route and lay the cable properly on the cable tray with the help of RF clamp.
• Then we have to give the proper bend on RF cable at the corner of HCT and VCT.
• Then we have to put a dummy RF clamp on the bend of the cable.
• Then we have to make a 's' loop before the wall fit tray.
• Measure half meter from the wall fit tray and put a marking.
• Take out all the cables from wall fit tray and cut at the marked position.
• Then we have to make a RF connector on it at the out side of tthe shelter.
• Then we have to re-insert the cable through wall fit tray.
• Then we have to seal the wall fit tray properly.
• Connect the RF cables with surge arrestor.
• After that we have to connect the jumper cable with bts to surge arrestor.
4.Quality cheak points
S.NO. GROUP name PARTICULERS STATUS REMARK
A- OD jumper cable
1- OD jumper connector properly connected with GSM antenna port
Ok -
2- Weather proofing is properly wrapped on antenna port
Ok -
3- OD jumper loop should be right
Ok -
4- OD jumper cable fix at tower body
Ok -
5- OD jumper connected properly with RF connector
Ok -
(B) RF cable
6- Bending HCT to VCT RF cables
Ok -
7- S-band in RF cable Ok -
8- Lay RF cable on the C.T.
Ok -
9- RF cables is properly fix in RF clamp
Ok -
(C) Eathing kit
10- Earthing kit is properly wrapped on RF cable
Ok -
11- Earthing kit lug’s properly crimp with C- clamp
Ok -
12- Weather proofing is properly wrapped on earthing kit
Ok -
13- Earthing kit cable is down word connected
Ok -
(D) C-clamp
14- Tower paint is properly remove
Ok -
15- C-clamp is properly connected with tower body
Ok -
(E)- RF connector
16- RF connector is properly assemble
Ok -
17- Weather proofing is properly wrapped on RF connector
Ok -
18- RF connector properly connected the jumper connector
Ok -
(F)- Tie cable
19- Properly tight the OD jumper –Antenna port
Ok -
20- Properly tight the OD jumper connector-RF connector
Ok -
21- Properly tight the earthing kit
Ok -
22- Properly cut the tie cable on antenna port
Ok -
23- Properly cut the tie cable on RF connector
Ok -
24- Properly cut the tie cable on earthing kit
Ok -
(G)- RF clamp
25- RF clamp properly fix on the cable tray
Ok -
26- In RF clamp properly fix RF cable
Ok -
27- RF clamp nut fully tight
Ok -
28- Dummy RF clamp proper manner contain all the RF cable
Ok -
29- Inside length b\w two RF clamp VCT is 1.5m
Ok -
30- Inside length b\w two RF clamp HCT is 1m
Ok -
(H)- Roxtec
31- Properly seal the roxtec Ok -
(I)- Surge arrestor
32- Surge arrestor connected with RF connector
Ok -
33- Surge arrestor connect with ID jumper cable
Ok -
34- Surge arrestor is properly fix with shelter body
Ok -
35- Surge arrestor properly connected with grounding cable
Ok -
36- Surge arrestor cable lug’s properly crimp with IGB
Ok -
37- Surge arrestor cable is Ok -
properly fix on shelter wall
(J)- ID jumper cable
38- ID jumper cable properly connected with BTS port
Ok -
39- Give a properly loop in ID jumper cable
Ok -
40- ID jumper cable is properly fix on shelter wall
Ok -
(K)- Labeling of antenna line
41- On OD jumper cable near antenna port
Ok -
42- On OD jumper cable near RF connector
Ok -
43- On RF connector near OD jumper cable
Ok -
44- At the band HCT-VCT Ok -
45- Outside the roxtec Ok -
46- On RF cable inside the shelter
Ok -
47- End of ID jumper near BTS port
Ok -