Freedom R8100 SERIES, Operator'S Manual

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adjustment of the Tone Duration and Inter-digit Delay. A Single Digit mode also allows single key press
tone generation similar to a telephone keypad.
Figure 3.2.4.2-2 DTMF Table providing additional code sequence control.
Microphone Mode
Enables or disables modulation from an external microphone attached to the Mic In port of the R8100.
Note: Pressing the PTT button on the external microphone switches the R8100 into Generate mode.
Modulation from the microphone is applied to the carrier when the mode is set to Continuous.
Microphone Level
Sets the modulation level for the external microphone attached to the R8100. The displayed units reflect
the modulation mode chosen in the RF Zone, either deviation in kHz for FM or % modulation for AM.
High Pass Filter
Activates a horizontal submenu with audio filter selections that determine the high pass frequency for the
R8100’s baseband response to recovered audio. The “cut-on” frequency selections are 5 Hz, 300 Hz, and