Kenwood TS-590S manual Audio spectrum components swamped by noise

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4 DSP

Audio spectrum components swamped by noise

Figure 4-14 NR1 (Spectral Subtraction Method) (Inactive)

Audio spectrum components extracted by NR

Figure 4-15 NR1 (Spectral Subtraction Method) (Active)

TS-590S

CONTENTS

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Contents TS-590S Other Restrictions About CopyrightCopyright of this Manual and Software About Trademarks and Intellectual PropertiesContents Optional Accessory Product Planning Objectives Development Spirit Type of Conversion ReceptionReception Down Conversion Block diagram Down ConversionMCF Hints and Tips Comparison of Bandpass Characteristics of MCFs Measurement Conditions Dynamic Range in the 50 MHz Band Up ConversionRX Auxiliary Circuits CN101 CN102 CN103 FET Final Circuit TransmissionKenwood Traditional Transmitting Circuitry If CircuitsTransmission High-speed Relay-controlled Antenna Tuner Remote ConnectorMenu N o or N o 1 or DRV Terminal Transmission Output Characteristics of DRV Terminal at 136 kHz and 0 dBm Transmission Local Oscillator Comparison C/N CharacteristicsMultipurpose 32-bit Floating Point DSP DSPDSP Advanced AGC Control via if Digital ProcessingControl Block Diagram of IF-AGC Digital if Filter Interference Elimination Within AGC LoopLOW CUT Types of Digital if FiltersManual Notch Filter and Auto Notch Filter Digital Noise Blanker NB2 Demodulation Modulation DSP-based Auxiliary Circuits for RX Beat Cancel AF ProcessingNoise Blanker NB2 if Processing 11 NB2 Inactive Overview of Noise Reduction13 Conceptual Scheme of NR1 Based on Spectral Subtraction 4 NR1 Spectral Subtraction Method AF ProcessingAudio spectrum components swamped by noise 16 NR1 Line Enhancer Method Inactive 5 NR1 Based on a Line Enhancer AF Processing18 NR2 Inactive 6 NR2 AF ProcessingSpeech Processor AF Processing DSP-based Auxiliary Circuits for TXTX Equalizer & RX Equalizer AF Processing DSP-based Auxiliary Circuits Common to TX/RXExtended Data-mode Related Functions Software Enhancing Operating PleasureSoftware Enhancing Operating Pleasure Drive OutOperation in the 135 kHz Band Single Button Toggles if Filters between a and BMode Selection of Built-in Electronic Keyer Power-on MessageDouble Function Keys and Hold Time Selection Quick Memory Function Cross Tone FunctionPF Keys MIC CN Expansion of Voice Guide Function Optional VGS-1 Required Projections on the Rear Panel Easy Updating of FirmwareA Sketch of the TS-590S Cooling Structural FeaturesStructural Features Heat Sink Section Amber and Green LCDMain Control Knob Main Control KnobWindows Related Software System ConfigurationsControlling TS-590S from a PC using the COM Connector Expansive Application SoftwareConnection Controlling TS-590S from a PC using the USB ConnectorSoftware Hardware Controlling TS-590S from a PC on a Remote SiteUser Interfaces Basic Specifications Inherited from ARCP-480Menu Function KNS Kenwood Network Command SystemKNS Welcome Message Audio Equalizer Visual ScanARHP-590 Amateur Radio Host Program Freeware Basic Specifications Inherited from ARHP-10Disabling AF Gain Control from ARCP-590 New ARUA-10 USB Audio Controller FreewareSetup Basic FunctionsOperation Adjusting Volume Automatic Execution when Windows StartsStarting and Stopping ARUA-10 12 Main Window of ARVP-10H New ARVP-10H Amateur Radio VoIP Program FreewareMaking ARVP-10H host station Online or Offline Setup of ARVP-10H Host StationConnecting and Disconnecting ARVP-10R Remote Station Setup of ARVP-10R remote station16 Device Manager New Virtual COM Port DriverPS-60 Regulated DC Power Supply Optional AccessoryComparing Rectification Waveforms Rectifier CircuitPage Revision 1.00 May 15

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