User Manual

In–Service Calibration – continued
Jan 2002
G-13
SC4812ET BTS Optimization/ATP — CDMA LMF
 The Power Delta Calibration has been performed (see Table G-1,
Table G-2, or Table G-3).
TX
TEST
CABLE
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
Hewlett–Packard Model HP 8935
DUPLEX OUT
TEST SETS Optimization/ATP SET UP
RF IN/OUT
HP–IB
TO GPIB
BOX
RX ANTENNA
PORT
TX ANTENNA
PORT
RS232–GPIB
INTERFACE BOX
INTERNAL PCMCIA
ETHERNET CARD
GPIB
CABLE
UNIVERSAL TWISTED
PAIR (UTP) CABLE
(RJ45 CONNECTORS)
RS232 NULL
MODEM
CABLE
S MODE
DATA FORMAT
BAUD RATE
GPIB ADRS G MODE
ON
BTS
TX
TEST
CABLE
CDMA
LMF
DIP SWITCH SETTINGS
10BASET/
10BASE2
CONVERTER
LAN
B
LAN
A
RX
TEST
CABLE
COMMUNICATIONS
TEST SET
IEEE 488
GPIB BUS
RF IN/OUT
NOTE: IF BTS RX/TX SIGNALS ARE
DUPLEXED: BOTH THE TX AND RX TEST
CABLES CONNECT TO THE DUPLEXED
ANTENNA GROUP.
ANTENNA
RFDS
DUPLEXER
DIRECTIONAL
COUPLER
EVEN
SECOND/
SYNC IN
EXT
REF
IN
FREQ
MONITOR
SYNC
MONITOR
CSM
REF FW00759
SYNC MONITOR
EVEN SEC TICK
PULSE REFERENCE
FROM CSM BOARD
FREQ MONITOR
19.6608 MHZ CLOCK
REFERENCE FROM
CSM BOARD
RX
TEST
CABLE
FWD
COUPLED
PORT
Figure G-9: Optimization/ATP Test Setup Using RFDS
20 DB PAD
(FOR 1.7/1.9 GHZ)
10 DB PAD
(FOR 800 MHZ)
20 DB PAD
(FOR 1.7/1.9 GHZ)
10 DB PAD
(FOR 800 MHZ)
DUPLEX
OUT
G