User's Manual - Crown Broadcast

3.4 Input Gain SwitchesThe “+6 dB” and “+12 dB” slide switches set audio input sensitivity according to thefollowing table.Normal InputSensitivity+6dBSwitches+12dB+10dBm Down Down+4dBm Up Down-2dBm Down Up-8dBm Up UpIllustration 3–4 Input Gain SwitchesFind, experimentally, the combination of Input Gain switch settings that will bring theWideband gain-reduction indicator to mid scale for “normal” level program material. Theaudio processor will accommodate a fairly wide range of input levels with no degradationof audio quality.3.5 Processing ControlTwo factors contribute to the setting of the Processing control: program material andpersonal taste. For most program material, a setting in the range of 40 to 70 provides goodprogram density. For the classical music purist, who might prefer preservation of musicdynamics over density, 10 to 40 is a good range. The audio will be heavily processed inthe 70 to 100 range.If the program source is already well processed, as might be the case with a satellite feed,set the Processing to “0” or “10”.3.6 Stereo-Mono SwitchThe Stereo-Mono slide switch selects the transmission mode. In Mono, feed audio only tothe left channel. Although right-channel audio will not be heard as audio modulation, it willaffect the audio processing.3-6 FM30/FM150/FM300 User’s Manual