Freedom R8100 SERIES, Operator'S Manual

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Figure 3.2.4.4-1 Audio Zone submenu in Generator mode
The additional submenu choices for the Audio Zone in Generate mode are as follows:
Mod Port Mode
This soft key determines the signal routing for the Mod In/Out port on the front panel. Choosing “In”
directs an externally applied signal to the modulation circuitry of the R8100. When switched to “Out”,
internally generated audio modulation is routed to the Mod In/Out port for use by an external radio or
instrument. Note: Remove voltage sources before selecting “Out”. If input voltage is detected at the port
the “Out” selection is ignored and an alert is displayed at the bottom of the display.
Mod In Port Level
Sets the modulation level for the external signal applied to the Mod In/Out port on the R8100. The
displayed units reflect the modulation mode chosen in the RF Zone, either deviation in kHz for FM, or %
modulation for AM. Note: The audio signals must equal +/- 1Vpk to provide a reference for accurate
display of the applied modulation level.