User's Manual Part 2

Test Equipment Set–up – continued
Apr 2001
3-45
SC4812ET BTS Optimization/ATP — CDMA LMF
DRAFT
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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
100–WATT (MIN)
NON–RADIATING
RF LOAD
TEST
SET
A. SHORT CABLE CAL
SHORT
CABLE
B. RX TEST SETUP
TEST
SET
C. TX TEST SETUP
20 DB PAD
FOR 1.9 GHZ
CALIBRATION SET UP
N–N FEMALE
ADAPTER
TX
CABLE
TX
CABLE
SHORT
CABLE
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
Figure 3-8: Cable Calibration Test Setup
FW00089
Note: For 800 MHZ only. The HP8921A cannot
be used to calibrate cables for PCS frequencies.
Hewlett–Packard Model HP 8921A
DIRECTIONAL COUPLER
(30 DB)
N–N FEMALE
ADAPTER
3