User's Manual

Test Cable Calibration – continued
JAN 2002
7-63
SC300 1X BTS Hardware Installation, ATP, and FRU Procedures
DRAFT
Figure 7-28: Cable Calibration Test Setup (Motorola CyberTest, HP 8935, HP 8921, and Advantest R3465)
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Motorola CyberTest
Hewlett–Packard Model HP 8935
Advantest Model R3465
DUPLEX
OUT
RF OUT
50–OHM
INPUT
50–OHM
RF GEN OUTANT IN
ANT
IN
SUPPORTED TEST SETS
TEST
SET
A. SHORT CABLE CAL
SHORT
CABLE
B. RX TEST SETUP
C. TX TEST SETUP
CALIBRATION SET UP
Note: The Directional Coupler is not used with the
Cybertest Test Set. The TX cable is connected
directly to the Cybertest Test Set.
A 10dB attenuator must be used with the short test
cable for cable calibration with the CyberTest Test
Set. The 10dB attenuator is used only for the cable
calibration procedure, not with the test cables for
TX calibration and ATP tests.
TEST
SET
RX
CABLE
SHORT
CABLE
FW00089
Note: For 800 MHZ only. The HP8921A cannot
be used to calibrate cables for PCS frequencies.
Hewlett–Packard Model HP 8921A
N–N FEMALE
ADAPTER
TEST
SET
TX
CABLE
SHORT
CABLE
N–N FEMALE
ADAPTER
30 DB 10W RF
ATTENUATOR
7