User Manual

Introduction to Optimization & Calibration – continued
5/21/04 1X SC4812T–MC BTS Optimization/ATP 3-3
DRAFT
S CSM equipage including redundancy
S Effective Rated Power (ERP) table for all TX channels to antennas
respectively. Motorola System Engineering specifies the ERP of a
transmit antenna based on site geography, antenna placement, and
government regulations. Working from this ERP requirement, the
antenna gain, (dependent on the units of measurement specified) and
antenna feed line loss can be combined to determine the required
power at the top of the BTS frame. The corresponding BBX output
level required to achieve that power level on any channel/sector can
also be determined.
Refer to the LMF Help function on–line documentation for
additional information on the layout of the LMF directory
structure (including CDF or NEC file locations and
formats).
NOTE
BTS System Software
Download
BTS system software must be successfully downloaded to the BTS
processor boards before optimization can be performed. BTS operating
code is loaded from the LMF computer terminal.
Before using the LMF for optimization/ATP, the correct
bts–#.cdf and cbsc–#.cdf or NECB*bts#.xml and
NECJ*bts#.xml files for the BTS must be obtained from
the OMC–R and put in a bts–# folder in the LMF. Failure
to use the correct CDF or NEC files can cause improper or
unpredictable BTS operation. Failure to use the correct
CDF or NEC files to log into a live (traffic carrying) site
can shut down the site.
CAUTION
The CDF or NEC files are normally obtained from the OMC–R on a
DOS formatted diskette, or through a file transfer protocol (ftp) if the
LMF computer has ftp capability. Refer to the LMF Help function
on–line documentation for the procedure.
Site Equipage Verification
If it has not already done, use an editor to view the CDF or NEC files,
and review the site documentation. Verify the site engineering equipage
data in the CDF or NEC files matches the actual site hardware using a
CDF or NEC file conversion table.
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