Dsp-Based Auxiliary Circuits (Common To Tx/Rx); Tx Equalizer & Rx Equalizer (Af Processing) - Kenwood TS-590SG Manual

04 DSP

4.8 DSP-based Auxiliary Circuits (Common to TX/RX)

4.8.1 TX Equalizer & RX Equalizer (AF Processing)
If you use the RX equalizer (RX EQ), you can easily adjust the RX audio quality. Pick your quality of choice from the preset
curves: high boost, formant pass, bass boost, and flat.
Likewise, TX audio quality can be adjusted with the TX equalizer (TX EQ). It is easy to make changes to suit your taste of
TX audio quality: for example, correcting microphone characteristics or applying compensation to match the characteristics
of your own voice.
And on the TS-590S/SG, you can adjust the settings in the 18-band graphic equalizer offered in its Audio Equalizer window
(Figure 4-22) with the ARCP-590/ARCP-590G provided on our website. This function offers you more diverse options for
equalizing.
Any adjustments made in the Audio Equalizer window are reflected in the TS-590S/SG in real-time. Meanwhile, the
equalization done while User is selected is stored on the TS-590S/SG.
Typical graphic equalizers used in audio devices divide the spectrum into octave segments. In contrast, the equalizer on
the TS-590S/SG divides the spectrum into multiples of 300 Hz to allow the insertion of a notch at a particular frequency
and precise reproduction of complex frequency analysis results.
In addition, the menu settings of the RX equalizer and TX equalizer can now be stored for each mode starting from the
TS-590SG (or the TS-590S Ver.2 Update).
Hints and Tips
● Rumbling sound during CW reception
Feedback is often received on the rumbling sound (low-frequency noise) during CW reception. In particular, when the pitch
frequency is low, the rumbling sound of low-frequency noise is likely to occur when the shift frequency is lowered. In this case, try
setting the RX equalizer to lower the 0 Hz or 300 Hz level. The setting can be altered for each mode starting from the TS-590SG (or
the TS-590S Ver.2 Update), and you are able to select a frequency characteristic according to your preference simply by setting to
the mode to CW.
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Figure 4-22 ARCP-590G Audio Equalizer Window