Andrew Type 960 Class I & II Manual de usuario

Chapter 3

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3-1.5 METERS REQUIRED FOR BTS A/T INCLUDING INFRASTRUCTURE:- 1. SMPS:-

3-1.6 GSM NETWORK FREQUENCY Sl. No ARFCN TRANS FREQUENCY IN MHz RECEIVE FREQUENCY IN MHz 1 63 947.6

3-1.7 GSM BTS A/T (Lucent) General:-

BTS A/T started:- Note that the following tests are deleted from the Test schedule. 1. Trans frequency , 2. Check of feeder cable loss, 3. Check

Before starting BTS A/T lock BTS site i.e. all the 3 sectors from OMC-R .Put off the Rack. Again restart and check that all Hardware getting restored

92 VSWR Test:- See Fig. 3-1 for RF cable W/G. There are two types of VSWR meters. 1. Site Master Anritsu or Bird (with power measurement) 2. Bird

93 3-1.8 ALCATEL BTS Please see BTS front view , TRE, and Combiner in Fig. 3-6, 3-7. Alcatel project was launched in DEC 2004. There were three t

94 Before starting Transmission A/T of BTS, lock BTS site from OMC-R, and confirm. Carry out initialization of BTS as

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95 There are some tests which are to be seen in RI (Remote Inventory). Simulate the condition and check in RI as follows, 1. Checking of Antenna m

4. If any unit is extracted then display shows as Hardware degraded, if put in then there will be no alarm on display. 5. If VSWR out then LED on T

2. Site Master: - Make: Anritsu and Bird. Anritsu: - Models - S 113 B (5-1200 MHz), See Fig. 3-8

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3-1.10 GSM frequency band and Site Mast Agilent Site Master:- Systems Uplink MS-BTS Downlink BTS-MS R GSM-900 876-890 MHz 921-935 M

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3-2 - : GSM COVERAGE A/T :- 3-2.1 General - A coverage with content and quality has got to be quite rarity,

3-2.5 Proceed for coverage :- 1. First of all take a local JTO/SDE who knows all important places, gullies of the city where cov

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3-2.6 Sample of: - 1. Link budget consideration:- The objective of the link budget is to determine the limiting factors on the RF signal and

3-1.1 Some important abbreviations frequently in use of GSM network:- Sr.no. Abbreviations Long forms 1 G

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3.3 TOWER A/T Tie Beam Soil Rest Platform Concreting 6’-8’ Anchor Plate Ring Earth 3-3.1 1] SACFA clearance: - What is

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3-3.3 5] Painting of tower as per standard: - The main purpose of tower painting is day time warning to Aircraft and to avoid rusting of tower mater

Rectangular W/G :- 4 GHz - WR 229 6 GHz - WR 137, WR 159,

3-3.5 17] Concreting of tower base plates:-To avoid rusting of base plate, theft of nut and bolts and to keep tower structure undisturbed, concreti

3-3.7 New procedure for Tower A/T :- As per the new circular dated 02/07/2007, Tower A/T should be completed as per new test schedule w.e.f. 01/08

3-4 A/T of 15 GHz/ 8 MB, Digital M/W system as a BTS media 3-4.1General:-

3-4.5 Acceptance Testing:- - Carry out test at Location A ands B on laptop, expected Rx level and compare it with survey report. The li

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