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Chapter 5 161
CDMA Measurements - Screens and Control Fields
Control Fields for CDMA Measurements
Input Atten
This field controls the RF attenuators of the Test Set. If an ADC
Overdriven message is displayed at the top of the screen while making
measurements, increase the attenuator setting until the message is no
longer displayed. This is the coarse level adjustment for the signal level
into the CDMA analyzer. Fine level adjustment is performed using the
Gain field.
See “Gain” on page 159 for more information.
NOTE
The Input Atten setting does not affect, and is not displayed with, the
average power measurement.
Screens on which this field is present
CDMA ANALYZER
CODE DOM (Code Domain Analyzer): gain controls menu
Input Port
This field selects which Test Set port to use as the RF input. This field
is not displayed when measuring average power, since you must use the
RF IN/OUT port to measure average power.
CAUTION
Instrument Damage
To prevent instrument damage, do not exceed the maximum power level
labeled at the connectors on your Test Set. The ANT IN connector is for
measuring low level RF signals. High level (>60 mW) transmitter
signals must be measured using the RF IN/OUT port.
Screens on which this field is present
CDMA ANALYZER
CODE DOM (Code Domain Analyzer): main controls menu
Lvl
This measurement displays the relative level of the selected Walsh
channel when compared to the total power in a 1.23 MHz bandwidth
centered around the Tune Freq setting. The measurement is displayed
when the code domain analyzer’s main controls Measurement field
is set to Power or Fast Pwr. This function is appears as Marker Lvl for
the IS-2000 option. See “Marker Lvl” on page 162
Screens on which this field is present
COD DOM (Code Domain Analyzer, IS-95 only): Marker controls menu