User's Manual

In–Service Calibration – continued
08/01/2001
H-23
1X SCt4812ET Lite BTS Optimization/ATP
PRELIMINARY
TX
TEST
CABLE
TEST SETS Optimization/ATP SET UP
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
CABLE
CDMA
LMF
DIP SWITCH SETTINGS
10BASET/
10BASE2
CONVERTER
LAN
B
LAN
A
RX
TEST
CABLE
COMMUNICATIONS
TEST SET
IEEE 488
GPIB BUS
IN
TEST SET
INPUT/
OUTPUT
PORTS
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
RX
CABLE
FWD
COUPLED
PORT
Figure H-14: Optimization/ATP Test Setup Using RFDS – Advantest R3267/R3562 Test Equipment
20 DB PAD
(FOR 1.7/1.9 GHZ)
10 DB PAD
(FOR 800 MHZ)
RF IN
RF OUT
Advantest R3267 (Top) and R3562 (Bottom)
FREQ MONITOR
19.6608 MHZ CLOCK
REFERENCE FROM
CSM BOARD
SYNC MONITOR
EVEN SEC TICK
PULSE REFERENCE
FROM CSM BOARD
BNC
“T”
NOTE:
SYNTHE REF IN ON REAR OF SIGNAL GENERATOR IS
CONNECTED TO 10 MHZ OUT ON REAR OF SPECTRUM
ANALYZER
TO EXT TRIG
ON REAR OF
SPECTRUM
ANALYZER
H