User's Manual Part 2

Test Equipment Set–up – continued
DRAFT
SCt4812T CDMA BTS Optimization/ATP
Mar 2001
3-48
Setup for TX Calibration
Figure 3-11 and Figure 3-12 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
ÏÏÏ
ÏÏÏ
Ì
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
100–WATT (MIN)
NON–RADIATING
RF LOAD
IN
TX
TEST
CABLE
CDMA
LMF
DIP SWITCH SETTINGS
2O DB PAD
(FOR 1.7/1.9 GHZ)
10BASET/
10BASE2
CONVERTER
LAN
B
LAN
A
TX TEST
CABLE
TX ANTENNA
PORT OR TX
RFDS
DIRECTIONAL
COUPLERS
POWER
METER
(OPTIONAL)*
NOTE: THE DIRECTIONAL COUPLER IS NOT USED WITH THE
CYBERTEST TEST SET. THE TX CABLE IS CONNECTED DIRECTLY
TO THE CYBERTEST TEST SET.
Advantest Model R3465
INPUT
50–OHM
GPIB
CONNECTS TO
BACK OF UNIT
* A POWER METER CAN BE USED IN PLACE
OF THE COMMUNICATIONS TEST SET FOR TX
CALIBRATION/AUDIT
POWER
SENSOR
Figure 3-11: TX Calibration Test Setup (CyberTest, HP 8935, and Advantest)
REF FW00094
30 DB
DIRECTIONAL
COUPLER
3