FLEX-6000 Signature Series – Maestro User Guide
Page 77
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indicate the input level range. Signals up to -10 dB are shown in green. Signals levels between -10
and 0 dB are shown in yellow. Any signal level greater than 0 dB is shown in red.
When setting up your microphone audio for optimal modulation, adjust the input gain so that the
peak level indicator is peaking just BELOW the 0 dB on voice peaks. It is very important that your
peak level indicator never exceed 0 dB and turn red at any time. A red peak level indicator indicates
over-driven or “clipped” input audio levels resulting in audio distortion. The input ALC is active, but
excessive input signal levels may result in input signals that can exceed 0 dB. If you see the peak level
indicator turn red at any time, turn down the audio input level until you no longer see the peak level
indicator turn red.
The compression meter indicates the amount of compression provided by the speech processor
based on the PROC setting and the input gain level. This meter is informational only and is not used
in setting microphone levels.
17.4.2 Operating the Speech Processor
The speech processor implements the W9GR Controlled Envelope Single Sideband (CESSB) peak
limiting algorithm in SSB, AM and FM modes. The processor may be on or off and has three different
settings when enabled. In the NOR or normal setting, the processor provides minimal additional gain
and simply prevents audio peaks from clipping or producing power in excess of the set level. In the
DX setting, some compression is provided to the audio to increase the overall sideband envelope
which results in a stronger signal that may be more readily heard at a distance. The DX+ setting adds
even more compression increasing your talk power or “punch” without incurring significant audio
distortion. DX+ is most effective if you increase the low-cut TX filter to between 200-400 Hz in order
to concentrate your talk power in the audio frequency range that has the greatest intelligibility.
The recommended setting is to leave the speech processor enabled and in the NORmal or DX
position.
17.4.3 How to Configure the Equalizer (EQ)
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