User's Manual Part 2

Test Equipment Setup – continued
6-60 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU MAY 2004
PRELIMINARY
Figure 6-16: TX Calibration Test Setup –
Agilent E4406A and Advantest R3567 (IS–95A/B and CDMA2000 1X)
TEST SETS TRANSMIT (TX) SET UP
RS232–GPIB
INTERFACE BOX
GPIB
CABLE
RS232 NULL
MODEM
CABLE
S MODE
DATA FORMAT
BAUD RATE
GPIB ADRS G MODE
ON
BTS
CDMA
WinLMF
DIP SWITCH SETTINGS
LAN
B
LAN
A
GPIB
RF INPUT 50 Ω
OR INPUT 50 Ω
FREQ
MONITOR
SYNC
MONITOR
CSA
Communications
SystemAanalyzer
50 Ω
TERM
.
TX TEST
CABLE
DIRECTIONAL
COUPLER
(30 DB)
100–WATT (MIN.)
NON–RADIATING
RF LOAD
TX TEST
CABLE
* BLACK RECTANGLES
REPRESENT THE RAISED
PART OF SWITCHES
NOTE: IF BTS IS EQUIPPED
WITH DRDCS (DUPLEXED
RX/TX SIGNALS), CONNECT
THE TX TEST CABLE TO
THE DRDC ANTENNA
CONNECTOR.
POWER
METER
(OPTIONAL)*
POWER
SENSOR
* A POWER METER CAN BE USED IN
PLACE OF THE COMMUNICATIONS
TEST SET FOR TX CALIBRATION/
AUDIT
RF INPUT
50 Ω
Agilent E4406A
INPUT 50 Ω
Advantest R3267
0–20 DB
IN–LINE
ATTENUATOR
NOTE:
TO PERFORM LOW POWER CALIBRATION THE POWER
METER IS ADEQUATE FOR MEASUREMENT PURPOSES
WITHOUT USING THE 30 DB DIRECTIONAL COUPLER AND
0–20 DB ATTENUATOR.
cCLPA
ANTENNA
CONNECTOR
TX IN
CONNECTOR
RX OUT
CONNECTOR
TX 1RX DIV
HIGH POWER
CONNECTION
LOW POWER
CONNECTION TO
EITHER THE
POWER METER
OR ANALYZER
6