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Chapter 4 85
Overview of the Test Set’s Built-In Tools
Using the RF Tools Program
6. Position the cursor at DUPLEX OUT Level in dBm and select it.
Enter the power level, − 54 to +10 dBm, at which the test should be
conducted. If you are testing a power sensitive device, enter a low
level value to avoid damage to that device.
CAUTION
Damage may result if the power input to the Test Set’s ANT IN port
exceeds 60 mW (which is equivalent to 18 dBm). Damage may also
result to the unit-under-test if it is overdriven by the DUPLEX OUT
power level. To avoid damage to the unit under test, enter a low power
level for the DUPLEX OUT level in dBm parameter.
7. Press
k1
(Begin Tst).
Figure 4-5 Swept Gain Setups
8. A setup screen appears with a diagram of the necessary connections,
similar to the Calibration Setup of Figure 1-2. This test requires two
6-dB pads (attenuators). The pads are put on the Test Set’s ANT IN
and DUPLEX OUT ports to reduce impedance mismatch error at
these ports. A reference level is obtained by connecting a short
calibration cable between the pads on the DUPLEX OUT and ANT
IN ports. Set up the hardware, then press
k1
(Proceed) or the knob
to continue.
9. Another setup screen appears similar to the Measurement Setup of
Figure 4-5. Attach the device to be tested between the calibration
cable and one of the pads. In this step, a measurement is made of the
additional gain from the reference level. Press
k1
(Proceed) or the
knob to continue.
PARALLEL PORT 15
AUDIO OUT
ANALOG
MODULATION
IN
AUDIO IN
SCOPE
MONITOR
OUT
EXT SCOPE
TRIG IN
VIDEO
OUT
ANT IN DUPLEX OUT
CHIP CLOCK
1.2288
MHz OUT
FRAME
CLOCK
OUT
EVEN
SECOND
SYNC IN
TRIGGER
QUALIFIER
IN
10 MHz
REF OUT
EXT
REF IN
RF IN/OUT
IN
BASEBAND OUT
HI
LO
QI
PARALLEL PORT 16
SERIAL 9
SERIAL 10
SERIAL 11
16X
CHIP CLOCK
19.6608
MHz OUT
DATA
8935
DUPLEX OUT
ANT IN
6dB Pad
Cal Cable
6dB Pad
Calibration Setup
PARALLEL PORT 15
AUDIO OUT
ANALOG
MODULATION
IN
AUDIO IN
SCOPE
MONITOR
OUT
EXT SCOPE
TRIG IN
VIDEO
OUT
ANT IN DUPLEX OUT
CHIP CLOCK
1.2288
MHz OUT
FRAME
CLOCK
OUT
EVEN
SECOND
SYNC IN
TRIGGER
QUALIFIER
IN
10 MHz
REF OUT
EXT
REF IN
RF IN/OUT
IN
BASEBAND OUT
HI
LO
QI
PARALLEL PORT 16
SERIAL 9
SERIAL 10
SERIAL 11
16X
CHIP CLOCK
19.6608
MHz OUT
DATA
8935
DUPLEX OUT
ANT IN
6dB Pad
Cal Cable
Barrel
Connector
6dB Pad
Measurement Setup
sweptg.eps
Test Device