MFJ hamProAudio MFJ-654, Инструкция по эксплуатации

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J-654 hamProAudio
TM
Microphone Equalizer/Conditioner Instruction & Technical Manual
-19-
THEORY OF OPERATION
Figure 14: Compression and Gating Characteristics
Figure 14 shows how the input levels are compressed for various levels of
compression within the SSM2166. Compression is a method of signal
processing that the loudest signals are made softer and the quietest signal are
boosted this reduces the overall dynamics of the signal but this also makes the
output appear louder to the ear.
Bypassing the Output Transformer: All transformers will roll off the lower
frequencies particularly below 200HZ while this is desirable for DX situations
some users may find this undesirable. If this is the case and the added isolation
of the transformer is not required then simply set the jumpers 10-12 to the
required location to bypass the audio transformer.