Instruction Manual

Test Equipment Set–up – continued
DRAFT
SC4812ET BTS Optimization/ATP — CDMA LMF
Apr 2001
3-46
Setup for TX Calibration
Figure 3-9 and Figure 3-10 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 1.9 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.
* A POWER METER CAN BE USED IN PLACE
OF THE COMMUNICATIONS TEST SET FOR TX
CALIBRATION/AUDIT
POWER
SENSOR
Figure 3-9: TX Calibration Test Setup (CyberTest and HP 8935)
FW00094
DIRECTIONAL COUPLER
(30 DB)
** BLACK PORTION OF THE
DIAGRAM REPRESENTS THE
RAISED PART OF THE
SWITCH
3