Quality The Q of the notch filter, adjustable from 4 to42 in increments of 1. The center frequency isfully attenuated (Þ –¥ dB).DetectiontimeThe maximum time interval that is allowed foran interruption of the monitored pilot signal ordigital clock (Lock) without an error messagebeing generated (0.1 ... 99.9 sec. in 0.1 sec.increments).Notch filter Notch filter to remove the pilot signal from theprogram signal. However, if activated, thenotch filter remains active even if Inputmonitoring is set to Off.12.2.2.2. Input gainSelecting «Input gain» from the «Input settings» menu opens thecorresponding subscreen.An additional preamplifier stage (gain pot) is provided for eachinput channel, either analog or digital.This allows either analog or digital audio sources to be directlyconnected to the respective amplifier input channels and presetstheir upstream gain ranging from –57.5 dB to +6 dB in steps of0.5 dB.By factory default the input gain is set to 0 dB.At the bottom of the screen two buttons are located providing thefollowing functions:InputgainMaster On/Off switch.The on/off status is indicated by a change in color ofthe button from grey to blue or vice versa.Clear All gain settings are reset to factory default (0 dB)while the function remains activated.12.2.2.3. FallbackThe Fallback function enables the definition of primary (Regular)and secondary (Fallback) signal paths for analog and digital inputsignals with two different modes (Manual or Auto). This ensuresthat any secondary or emergency signal fed to the Fallback inputsis transmitted when required.For this purpose, the input section is split in two logical groups:▪ Regular signals only on input connector pair 1/2.▪ Fallback signals only on input connector pair 3/4.Note: The Fallback and Override functions can be usedsimultaneously. However, please note that in this case input 3is no longer available as fallback input.d&b 10D/30D Manual 1.10 en42