User's Manual Part 2

Introduction to Optimization and Calibration – continued
MAY 2004 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU 6-5
PRELIMINARY
10. If the TX calibration fails again, troubleshoot and correct the
problem causing the failure, and repeat the full optimization for the
failed path.
11. If the TX calibration and audit portion of the full optimization passes
for a path but some of the TX or RX tests fail, troubleshoot and
correct the problem causing the failure, and run the individual tests
as required until all TX and RX tests have passed for all paths.
Cell-site Types
The site is configured as Omni/Omni. Each cell site type has unique
characteristics and must be optimized accordingly.
CDF/NECF
The CDF/NECF (Configuration Data File/Network Element
Configuration File) contains information that defines the BTS and data
used to download files to the devices. A CDF/NECF file must be placed
in the applicable BTS folder before the WinLMF can be used to log into
that BTS. CDF/NECF files are normally obtained from the CBSC using
a floppy disk. A file transfer protocol (ftp) method can be used if the
WinLMF computer has that capability. Refer to the WinLMF Help
function on–line documentation for more information.
The CDF/NECF includes the following information:
S Download instructions and protocol
S Site specific equipage information
S CCP2 Shelf allocation plan
– BBX equipage (based on cell–site type) including IS–95A/B or
CDMA2000 1X capability and redundancy
– CSA equipage including redundancy
– Multi–Channel CDMA Card 1X channel element allocation plan.
This plan indicates how the CCP2 Shelf is configured, and how the
paging, synchronization, traffic, and access channel elements (and
associated gain values) are assigned among the (up to 3) MCC–1Xs
in the shelf.
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, antenna
gain and antenna feed line loss can be combined to calculate the
required transmit power at the frame antenna connections. The
corresponding BBX output power required to achieve that power level
on any channel/sector can then be determined based on Bay Level
Offset (BLO) data established during the optimization process.
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