Kenwood TS-590S manual Manual Notch Filter and Auto Notch Filter

4 DSP

4.3.3 Manual Notch Filter and Auto Notch Filter

The manual notch filter is a notch filter with a frequency that can be shifted with the notch knob. The auto notch filter is a notch filter that automatically tracks a beat frequency with an adaptive filter technique. Both notch filters have the attenuation of more than 60 dB at the center frequency. Figure 4-7 describes how a weak signal emerges by the operation of AGC when the manual notch filter eliminates an interfering signal in the power spectrum.

Figure 4-7 Clear Weak Signal by Eliminating Interference with Manual Notch Filter

(from above, Disabled to be Enabled)

TS-590S

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