Analog Duplex System
Subject to Export Control, see Cover Page for details.
8-11
Modulation Measurements Configuration Tile
The Modulation Measurements Configuration Tile defines parameters used to measure FM signals.
Fig. 8-8 Analog Duplex - Modulations Measurements Configuration Tile
Field/Soft Key Definitions
FM Demod Meas
Sets the FM Demodulation measurement that reads the RMS or Peak value. The selected option
is shown beside the FM Deviation Level field on the Analyzers Tile
.
FM Offset Compensation
Enabling FM Offset Compensation removes any frequency offset that is reflected on the FM
Deviation Meter bargraph and FM Deviation measurement.
Output Port (FCTN GEN/DEMOD) Use
Selects the output connector on the front panel. Demod options select the FCTN GEN/DEMOD
Connector as the Demodulation Output. When a filtered output option is selected, the filter type
is selected from the Psoph filter drop-down menu.
Audio In options select the FCTN GEN/DEMOD Connector as the AF Generator output.
Changing configuration to Demod Out while still connected to the MIC/AF Input of a radio
under test may create a feedback loop.
Loudspeaker
The Loudspeaker drop-down menu selects the source and routing of the signal applied to the
loudspeaker within the Test Set.
Psoph Filter
Selects CMESS or CCITT Psophometric weighting filter when the Psoph filter is selected from
any of the Filter selection drop-down menus. Psoph filters are typically used for SINAD
measurements, either Demod or Audio.
Measurement Averages
Defines the number of readings averaged for the Modulation Measurements. Valid range values
are 1 to 250.
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