User Manual

Test Equipment Set–up – continued
July 1999
3-45
SC 4812ET BTS Optimization/ATP – CDMA LMF
PRELIMINARY 2
Setup for TX Calibration
Figure 3-16 andFigure 3-17 show the test set connections for TX
calibration.
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Motorola CyberTest
Hewlett–Packard Model HP 8935
TEST SETS TRANSMIT (TX) SET UP
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FRONT PANEL
RF
IN/OUT
RF IN/OUT
HP–IB TO
GPIB BOX
RS232–GPIB
INTERFACE BOX
INTERNAL PCMCIA
ETHERNET CARD
GPIB
CABLE
COMMUNICATIONS
TEST SET
CONTROL
IEEE 488
GPIB BUS
UNIVERSAL TWISTED
PAIR (UTP) CABLE
(RJ45 CONNECTORS)
RS232
NULL
MODEM
CABLE
OUT
S MODE
DATA FORMAT
BAUD RATE
GPIB ADRS
G MODE
ON
TEST SET
INPUT/
OUTPUT
PORTS
BTS
30 DB
DIRECTIONAL
COUPLER
WITH UNUSED
PORT TERMINATED
100–WATT (MIN)
NON–RADIATING
RF LOAD
IN
TX
TEST
CABLE
CDMA
LMF
DIP SWITCH SETTINGS
2O DB PAD
10BASET/
10BASE2
CONVERTER
LAN
B
LAN
A
TX TEST
CABLE
TX ANTENNA
PORT OR TX
RFDS
DIRECTIONAL
COUPLERS
POWER
METER
(OPTIONAL)*
* A POWER METER CAN BE USED IN PLACE
OF THE COMMUNICATIONS TEST SET FOR TX
CALIBRATION/AUDIT
POWER
SENSOR
Figure 3-16: TX calibration test setup (CyberTest and HP 8935)
FW00094
Note: The Directional Coupler is not used with the
Cybertest Test Set. The TX cable is connected
directly to the Cybertest Test Set.
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