User's Manual Part 2

Test Equipment Setup – continued
MAY 2004 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU 6-59
PRELIMINARY
Figure 6-15: TX Calibration Test Setup – Using Power Meter
TEST SETS TRANSMIT (TX) SET UP
NOTE:
THE HP8921A AND ADVANTEST R3465
CANNOT BE USED FOR TX CALIBRATION. A
POWER METER MUST BE USED.
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
FREQ
MONITOR
SYNC
MONITOR
CSA
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
POWER
SENSOR
Power Meter
0–20 DB IN–LINE
ATTENUATOR
NOTE:
TO PERFORM LOW POWER CALIBRATION
THE 30 DB DIRECTIONAL COUPLER AND
0–20 DB ATTENUATOR ARE NOT REQUIRED.
ANT
IN
Hewlett Packard Model HP 8921A
(for 800 MHz)
NOTE:
TO PERFORM LOW POWER CALIBRATION
USING THE HP8921A, CONNECT TO THE
ANT IN PORT. THE 30 DB DIRECTIONAL
COUPLER AND 0–20 DB ATTENUATOR ARE
NOT REQUIRED.
cCLPA
ANTENNA
CONNECTOR
TX IN
CONNECTOR
RX OUT
CONNECTOR
TX 1RX DIV
LOW POWER
CONNECTION
HIGH POWER
CONNECTION
6