CDMA Measurements - Screens and Control Fields

Control Fields for CDMA Measurements

Gain

This field sets the IF gain of the CDMA analyzer for rho, EVM, and channel power measurements. (Range: 0 dB to 36 dB in 6 dB steps.)

Gain is adjusted two ways:

Auto measures the signal level and automatically adjusts the gain.

Hold disables automatic operation to allow you to manually enter the desired gain by selecting the current gain setting and entering a new value using the keypad or cursor control knob.

This field is replaced by the Pwr Gain field when measuring average power on the CDMA ANALYZER screen. See “Input Atten” on page 161 for more information.

Screens on which this field is present

CDMA ANALYZER

COD DOM (Code Domain Analyzer): gain controls menu

Gen Dir

This field sets the link direction of the CDMA signal.

Fwd (forward) sets the CDMA generator to produce QPSK modulation to imitate a base station. The EQ filter field is automatically displayed and set to EQ In to apply an equalizing filter to the I and Q paths as part of the baseband filtering, but it can be changed to Out.

Rev (reverse) sets the CDMA generator to produce OQPSK modulation to imitate a mobile station. The EQ filter field is not displayed because it is automatically set to Out (and cannot be changed). It is set to Out to remove the equalizing filter from the I and Q paths.

Screens on which this field is present

CDMA GENERATOR

Chapter 5

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Agilent Technologies 8935 series e6380a manual Gain, Gen Dir, COD DOM Code Domain Analyzer gain controls menu